PIC-1006210

CSC-10052169-8190
May 1, 2013
CUSTOMER
STREET
CITY, STATE ZIP
PRODUCT IMPROVEMENT CAMPAIGN: C1006210 V68.1 EEC Reprogramming
VEHICLES INVOLVED – Certain 2012, 2013 and 2014 Model Year FEC52, FEC72, FEC92 and FGB72 Trucks
Vehicle Identification Number – VIN
Dear Mitsubishi Fuso Truck Owner:
This notice is being sent to advise you about an important Product Improvement Campaign involving the
Mitsubishi Fuso Truck identified above.
REASON FOR THIS CAMPAIGN: On affected vehicles, a software update is available for the engine control unit
that should eliminate false engine warning lamp illumination and power reduction as a result of the lamp
illuminating.
WHAT WE WILL DO: Diagnostic equipment will be connected to your truck to determine if any issues exist that
could cause the engine warning lamp to illuminate. If no issues exist, the engine control unit will be
reprogrammed with updated software.
If issues exist, the cause will be diagnosed, and any defective
components will be replaced. The update will be completed at no cost to you when performed by an Authorized
Dealer or Parts and Service Center. The scheduled time for repair is approximately 1.6 hours (software update
only) to 5.5 hours (diagnosis/repair and software update).
WHAT YOU SHOULD DO: For your continued satisfaction, please contact any Authorized Mitsubishi Fuso
Dealer or Parts and Service Center to schedule an appointment for this procedure. Refer to this Product
Improvement Campaign Notification letter when speaking with Dealer Service Department personnel.
We at MFTA regret any inconvenience this situation may cause you. However, your continued satisfaction with
our product is most important to us.
If an Authorized Dealer or Parts and Service Center is unable to perform this procedure without charge, or within
a reasonable time frame, please contact MFTA Customer Service toll-free at 877-711-0707 for further assistance.
Please note that this campaign will expire on May 1, 2014.
Sincerely,
William P. Mohr
Director, Service Operations
MITSUBISHI FUSO group
MITSUBISHI FUSO TRUCK OF AMERICA, INC.
2015 Center Square Road, Logan Twp., NJ 08085

SB-10052169-4686
Product Improvement Campaign
No: C1006210
Issued: 4/16/2013
Re: V68.1 EEC Reprogramming
Group: 13 Models: FE/FG
Expires: 4/16/2014
SUBJECT:
Product Improvement Campaign C1006210 – V68.1 EEC Reprogramming
MODELS:
FEC52, FEC72, FEC92, FGB72
VEHICLES INVOLVED:
Certain 2012, 2013 and 2014 model year FEC52, FEC72, FEC92 and FGB72 trucks produced from April 8, 2011
through March 31, 2013.
OWNER NOTIFICATION:
Owners of affected vehicles will be notified by mail.
MODIFICATION:
The engine EEC will be reprogrammed on all affected vehicles. If any EEC-related DTC’s are present, the vehicle
must be diagnosed prior to EEC reprogramming, and any components found to be defective must be replaced.
REPAIR PROCEDURE:
1. Park the vehicle on a flat, level surface, turn off the engine, apply the parking brake and chock the wheels.
CAUTION! Do not remove the wheel chocks until all modification work has been completed.
2. Turn the key to the off position and wait at least one minute. Then, fill the DEF tank.
The DEF tank level must be full prior to performing any reprogramming!
3. Confirm that the vehicle’s battery(s) and the Fuso Diagnostics (FD) laptop are properly charged. Connect the
laptop’s charging cord before reprogramming. Do not rely on internal battery voltage. Insufficient truck or
laptop voltage could cause errors during reprogramming. NOTE: IT IS NOT RECOMMENDED TO HAVE A
BATTERY CHARGER ON THE VEHICLE WHILE REPROGRAMMING THE ECU. CHARGE THE
BATTERY(S) COMPLETELY, AND THEN DISCONNECT THE CHARGER BEFORE STARTING THE
REPROGRAMMING PROCEDURE.
4. Connect Fuso Diagnostics (Version FDS-R12-2.2) and check for DTC’s. If no DTC’s are present, proceed to
step 5. If DTC’s are present, skip step 5 and proceed to step 6.
5. Perform Modification Procedure 1 – V68.1 EEC Upgrade and reprogram the engine EEC, then submit for
reimbursement following CAMPAIGN CLAIM SUBMITTAL on page 3. Skip steps 6 and 7.
6. If DTC’s are present DO NOT IMMEDIATELY REPROGRAM THE EEC! First, examine the condition of the
DEF dosing modulator, and then perform Modification Procedure 2 – V68.1 EEC Upgrade.
Examine dosing condition as follows:
- Go to the Selection under the “Actuations”
tab.
- Perform the 28.6 second test in the “009 Test of
DEF metering amount” and examine the dosing
condition if needed.
7. Diagnose the DTC’s and replace any defective components, then reprogram the engine EEC following
Modification Procedure 1. Submit for EEC reprogramming using CAMPAIGN CLAIM SUBMITTAL and
diagnosis and repair using WARRANTY CLAIM SUBMITTAL FOR DIAGNOSIS AND DEFECTIVE
COMPONENT REPLACEMENT on page 3.
8. Affix a red sticker to the EEC cover as shown below to indicate completion of reprogramming. Additional red
stickers can be procured through MFTA Customer Service at 877-711-0707.
POTENTIAL REPLACEMENT PARTS:
Part #
ME556058
ML239040
ME422856
QC000523
ME556056
ME557325
ME557326
ME422097
Potential Replacement Parts
Part Name
Qty.
Remarks
Replace if urea modulator is removed for diagnosis.
Urea Modulator Gasket
1
Replace only if determined to be defective.
Exhaust NOx Sensor
1
Replace only if determined to be defective.
Air Flow Sensor
1
Replace only if determined to be defective.
Intake Temperature Sensor
1
Replace only if determined to be defective.
Urea Modulator
1
Replace only if determined to be defective.
Exhaust Temperature Sensor 1
1
Replace only if determined to be defective.
Exhaust Temperature Sensor 2
1
Replace only if determined to be defective.
Intake Humidity Sensor
1
2
CAMPAIGN CLAIM SUBMITTAL:
Claim labor for EEC reprogramming via Fusonet using the Recall Claim Entry screen. Enter all requested
information, including the Campaign Number. The system will apply the labor allowance shown.
Campaign
Number
C1006210
Campaign Reimbursement
Models
Allowances
FEC52
FEC72
FEC92
FGB72
Labor Time
1.6 hours
Parts Pricing
US$8.34
Labor Description
Part Number
Fill DEF tank with up to 1 ½ gallons of fluid and
reprogram EEC
DEF003
PARTS PRICING ADJUSTMENT TABLE:
Part #
Part Name
Qty
Dealer Net
33% Mark Up
Recall
Reimbursement
DEF003
Diesel Exhaust
Fluid
1.5
US$4.18/gal
US$5.56/gal
US$8.34
WARRANTY CLAIM SUBMITTAL FOR DIAGNOSIS AND DEFECTIVE COMPONENT REPLACEMENT:
Submit a special Warranty Service Claim S (WSC S) via Fusonet for the diagnosis and defective component
replacement. Enter all requested header information, including the information listed below. IMPORTANT! Any
labor operation from the table below submitted on the WSC S must be accompanied by its associated
replacement part.
Warranty Service Claim Header Entry
Claim Type
Failed Labor Operation Number
A Code
B Code
Failed Part Number
Labor
Part
Labor
Part
Labor
Part
Labor
Part
Labor
Part
Labor
Part
Labor
Part
S
C1006210
8B
XC
NPN
Warranty Service Claim Labor and Parts Entry and Failure Work Description for FE Models
(Labor Operation / Work Code / Quantity / Labor Time)
Troubleshooting DTC’s
C10062 / 1Y/ 1 / 3.9 hours
ME556058
R/R NOx Sensor
C10062 / 2Y / 1 / 0.4 hour
R/R Air Flow & Intake Temp Sensor
C10062 / 3Y / 1 / 0.2 hour
R/R Boost Pressure & Temp Sensor
C10062 / 4Y / 1 / 0.5 hour
R/R DEF Dosing Modulator
C10062 / 5Y / 1 / 0.2 hour
R/R DPF Exh Gas Temp Sensor 1&2
C10062 / 6Y / 1 or 2 / 0.3 or 0.6 hour
R/R Humidity & Intake Air Temp Sensor
C10062 / 7Y / 1 / 0.2 hour
ML239040
ME422856
QC000523
ME556056
ME557325 or ME557326
ME422097
Warranty Comments
Include all DTC’s retrieved from the EEC, and the results of the diagnostic steps taken to repair the vehicle.
3
Modification Procedure 1 – Upgrading EEC Software to V68.1
IMPORTANT:
All technical issues must be remedied before a performing the reprogramming procedure
below, and the DEF tank level must be full prior to performing any reprogramming.
1. Check the “FUSO object number for software” using FD, under the “Version” tab of the EEC.
If the object number is 0154484440001 [Characteristics Map Coordinates (DIESEL FUEL METERING) –
0164480940001 , 0164481040001 ], the EEC has already been updated to Version V68.1 P17.
If
the EEC has not been updated to V68.1, continue to Step 2.
2. Fix all technical issues (DTC’s, component failures, etc.) before upgrading the EEC to software version
V68.1.
There must be NO active or pending DTC’s present in the EEC when starting the upgrade reprogramming
procedure.
If technical issues exist, perform Modification Procedure 2.
Note:
DTC 552558-31 indicates a
NOx-related failure.
3. Perform the ECU after-run process.
Turn the ignition switch from the ON to OFF position, then remove the key for one minute to complete the
after-run process.
4. Check Air Flow Sensor (AFS) calibration value using FD.
Record the AFS learning values (#152 & #153) for later comparison.
5. Go to MFTBC’s Field Rewrite Network (FRN) website at https://eol.mitsubishi-fuso.com/fss/.
Download the EEC file to a USB storage device. Record the inquiry number and password for an EEC control
module.
6. Insert the USB mass storage device into the laptop.
Open the Adaptations tab, open the Data transfer tab, and click On Copying from USB storage device.
7. Upgrade Engine software to V68.1 using FD.
(1). Software object number and version
The software part number can be checked under
the “Version” tab in the EEC on Fuso Diagnostics
Software number
Fuel map
4
(2).Perform EEC Reprogramming to upgrade to V68.1.
Go to MFTBC’s Field Rewrite Network website at https://eol.mitsubishi-fuso.com/fss/ and obtain an inquiry number
and password for an EEC control module.
a) “Transfer data from USB storage device”
Open “Adaptations” tab – insert the USB flash drive containing the EEC control module data into a USB port on
the FUSO Diagnostics laptop.
5
b) Open the “Data Transfer” Selection.
c) Click “Copying files from USB storage device” – Click “Continue”.
6
d) Verify the USB drive location, and then click “Continue”.
e) Enter the Inquiry #, and then click “Continue”.
7
f)
The transfer of files has completed.
g) Start the Reprogramming Sequence
•
Click the “Adaptations” Tab.
•
Open the “Initial Startup” drop down list.
•
Click the “Reprogramming” icon – Follow the instructions on the screen – Turn the Ignition Switch off
for a least 1 minute, then click “Continue”.
8
h) Turn the ignition switch to the “ON” position, then click “Continue”.
i)
Enter the Inquiry # and Password, then click “Continue”.
9
j)
Verify the drive location, then click “Continue”.
k) Click “Yes”.
10
l)
After programming begins, wait for the status bar to reach 100%.
m) Turn ignition key to the “OFF” position, then click “Continue”.
11
n) Wait for the status bar to complete the 60 second count.
o) Turn the ignition key “ON”, then click “Continue”.
12
p) Wait for the status bar to complete the 10 second count.
q) Then, wait for system to finish the data download.
13
r)
Wait for the program to finish the sequence and display the “Order log”.
completed.
Note:
The programming has
Click “Continue” before proceeding to the next operation.
(3). Check software object number and version
Software part number can be checked under
the “Version” tab in the EEC
Software version
Software(FE/FG)
Diesel Fuel
Metering – FE
Diesel Fuel
Metering – FG
V68.1
0154484440001
0164480940001
0164481040001
Software Number
Fuel map
(4). Perform Reset of coding
Choose “Reset of coding”.
(5). Perform the ECU after-run process.
Turn the ignition switch from the ON to OFF position,
then remove the key for one minute to complete the
after-run process.
Reprogramming functions complete –
Continue with “Reset and learning” functions below.
14
(6) Erase SCR related value
・Perform “018 Reset : Status of exhaust
aftertreatment” after reprogramming
・Wait 10 seconds while the screen fully loads data.
・Scroll down to the bottom of the page and click the green
button.
・Wait for the screen to indicate that all of the Actual values
have changed to “00”.
・When all zeros appear, the reset is complete.
Caution:
The DEF level warning lamp in DEF level indicator on
meter cluster may be flashing, due to SCR related
failure history until implementing “018 Reset : Status of
exhaust aftertreatment”.
(7). Clear error codes
Choose “Clear fault memory“.
Confirm that all error codes are cleared except the
codes below.
520240-0 / 520584-31 / 520586-31
(The screen on the left is only an example)
NOTE: If DTC 520570-31 appears in the EEC and
the SCR lamp is illuminating, perform the
“Procedure to clear DTC 520570-31” on page 19
after completing all Engine EEC software
reprogramming procedures.
15
(8) Conduct air flow sensor learning using fast learning
function
・Perform “006 Reset Hot film mass air flow sensor”.
・On vehicles that will allow fast learning, perform the
fast learning procedure as follows.
・Turn off the air conditioning switch.
・Run the engine until the engine cooling water
temperature rises above 60C {140F}. (more than 5 bars
on the meter cluster)
・Intake temperature must be between -20C to 40C {-4F to
104F}. If the temperature is below -20C {-4F}, move
the vehicle to a location that will allow a warmer intake
temperature.
・Wait for approximately 2 minutes with the engine idling.
・For best auditory results, perform the test while sitting in
the cab with the doors and windows closed.
・Hold the engine speed at wide open throttle (WOT) for
about 15 seconds until the buzzer sounds (If the buzzer
does not sound – hold the accelerator pedal down again
at WOT for 15 seconds).
・Turn off the engine and wait at least for 60 seconds to
allow the after-run to finish completely and turn the
ignition on again.
Note: Refer to the MF000002 Addendum for a
detailed procedure.
・After fast learning has finished, compare the air flow
sensor learning values (#152, #153) recorded in step 5
on page 1 to the default values.
Note 1: The value should not exceed the previously
recorded value by +/- 5.0000%
Example:
Original Value:
+ 1.0000%
New Value Range: -4.0000% to +6.0000%
Note 2: The AFS values should be not greater than
6.0000% (it should no longer be 0.0000%).
If the values are higher than this, perform fast learning
again.
If the values remain outside of the acceptable range,
perform Modification Procedure 2.
16
(9) Perform manual DPF regeneration using FD.
・Perform “012 Regeneration of diesel particulate filter”
NOTE 1: Coolant temperature must rise to at least
60C {140F} before performing the manual DPF
regeneration.
NOTE 2: If DTC 520570-31 appears in the EEC and
the SCR lamp is illuminating, perform the
“Procedure to clear DTC 520570-31” on page 19
after completing all Engine EEC software
reprogramming procedures.
NOTE :
If this error screen appears, select “Abort”.
17
(10) Check NOx value
・Check NOx value (#114) within 2 min.
Less than 200Nox value
(And other than “-0-“ or “-1-“)
・If this value is not within the acceptable range, proceed
to Modification Procedure 2.
12-
(11) Turn the ignition off and wait 60 seconds. Turn ignition
on again and check for DTC’s in the EEC using FD.
Ignore the following codes:
520240-0 / 520584-31 / 520586-31
(12) Erase failure memory in all ECUs in the vehicle.
・Navigate to the “Diagnosis” screen.
・In the “Control unit view”, choose “Start quick test”
・After the quick tests finishes, choose “Clear fault
memory”
・Choose “Start quick test” again to ensure all codes
have cleared.
(13). Collect EEC data to be uploaded to the FRN website.
Perform “Copying to USB storage device”.
(14). Upload EEC data to the FRN website.
18
Procedure to clear DTC 520570-31
If after finishing all software update procedures,
DTC 520570-31 appears in the EEC and the SCR lamp
is illuminating, Please perform the procedure below.
SCR lamp
(1) Erase failure memory in all ECUs in the vehicle.
・Navigate to the “Diagnosis” screen.
・In the “Control unit view”, choose “Start quick test”
・After the quick tests finishes, choose “Clear fault
memory”
・Choose “Start quick test” again to ensure all codes
have cleared.
(2) Confirm DTC 520570-31 still appears.
NOTE : the codes below also may appear with
520570-31: 1254-31 / 6DF1FF
(3) Perform a manual DPF regeneration using FD.
・ Perform “012 Regeneration of diesel particulate
filter”.
NOTE : Coolant temperature must rise to at least 60C
{140F}
・After, approximately 15 minutes, the error will resolve
(Allow DPF regeneration to finish automatically.)
(4) After DPF regeneration, turn off the ignition and wait
60 seconds
・Turn the ignition on again and confirm that there are
no DTC’s present in then EEC using FD.
Note: Ignore the following codes:
520240-0 / 520584-31 / 520586-31
(5) Press “Start quick test, then erase the failure
memory in all ECU’s.
19
Modification Procedure 2
NOx Level 1 Diagnosis
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1. Checks to be made at NOx Level1 error occurrence


When the following diagnostic code occurs, carry out troubleshooting based on the questionnaire without deleting any
diagnostic code.
Diagnostic code 3361-18 (Indication in FUSO Diagnostics: Too high exhaust emission level output from NOx sensor
(non-processed data)) or 520558-31(Indication in FUSO Diagnostics: System information (System information trouble
group: SCR 6)) occurs, carry out troubleshooting with the following procedure.
Record the diagnostic code based on the
questionnaire.
Diagnostic code occurs like below.
SCR lump status
EPA
3361-18
520558-31
NOx level1 error judgment
Illuminated or Blinking
Current or stored
Current
Not Illuminated
stored
stored
The NOx error has occurred currently.
The NOx error occurred in the past and
the NOx error has solved currently.
Is the SCR lamp on or not?
Not illuminated
Illuminated or Blinking
IF the state is “Vehicles restrictions”, do DPF
manual regenerating in creep mode. (See “1.1 DPF
manual regeneration methods in creep mode”)
Check density of DEF.
(See “1.2 Check density of DEF.”)
Any other diagnostic code occurred at the
same time?
No
Yes
There occurred any diagnostic codes which
were included in “1.4 Probable cause of
diagnostic code occurrence”?
No
Yes
Determine the probable cause based on the
diagnostic codes having occurred
simultaneously and make checks on the
relevant system sections. (See “1.4 Probable
cause of diagnostic code occurrence”)
Any abnormalities discovered and remedied?
Make checks on major probable causes of
NOx sensor error (See “1.3 Checks at relevant
system sections”.)
Nothing abnormal
Completed
Check procedure completed
According to the vehicle restriction state after diagnostic
code generating, you check that a warning lamp
eliminate in each procedure. (See “1.5 Procedure of
eliminate the warning lamp”)
Contact nearest Mitsubishi-Fuso dealer.
20
13E-130
TROUBLESHOOTING
Inspection procedure
13E-130
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1.1 DPF manual regeneration methods in creep mode






If the vehicle is the state of torque and power limitation, run the engine at idle a few hours until creep mode is reached.
In creep mode a manual regeneration can be started.
Turn the starter switch to the OFF position, wait at least 60 seconds and complete the after-run.
Turn the starter switch to the ON position and after a lapse of 10 seconds or longer, start the engine.
Warm up the engine until the engine coolant temperature exceeds 60 ﾟ C {140 ﾟ F}.
Press the Diesel Particulate Filter cleaning switch to perform the manual regeneration of Diesel Particulate Filter. In
the manual regeneration, the engine speed increases to 1500 – 2500 rpm and it takes approximately 20 minutes to
complete the manual regeneration.
After that, engine revolution goes to idling and DPF manual regenerating is end.
1.2 Check density of DEF.
 Check the DEF density in the DEF tank.
Standard
32.5±0.8％
value
 If the measured value exceeds a standard value, exchange the DEF to new one.
1.3 Check relevant systems.
 Perform the following checks in this order.
(1) NOx sensor

Drive the vehicle at 80 km/h {49.7mph} about for 30 minutes to
collect the service data (actual measurements) using FUSO
Diagnostics. Then check to confirm that the NOx sensor is
active (NOx value of FUSO Diagnostics other than “-1-” is
indicated).
OR

Turn on DPF manual regeneration and then right after finished
DPF manual regeneration check the service data (actual
measurements) using FUSO Diagnostics. Then check to confirm
that the NOx sensor is active (NOx value of FUSO Diagnostics
other than “-1-” is indicated)

Within 10 minutes, Run the engine at idle to determine the NOx
value of FUSO diagnostics. If a value more than 200ppm (200 in
reading of FUSO Diagnostics) is indicated continuously, faulty
NOx sensor is suspected. Replace the NOx sensor.
21
TROUBLESHOOTING
Inspection procedure
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(2) Air flow & intake air temperature sensor.
 Inspect the air flow & intake air temperature sensor according to the following flowchart:
Check the airflow sensor’s learning values by
FUSO Diagnostics and record them. (The default
learning value is called A. (See (1.3.2.1))
Repeat the learning procedure for the air flow
sensor until the learning values obtained vary
less than 2%. (The default learning value is
called B.)
New learning value (B) is more or less than 9% More than 9%
Less than 9%
Difference between leaning values A and B is
more than 5%
More than 5%
Note:
Nox error is caused by
not complete of
learning events
Less than 5%
Note:
Nox error is not caused
by air flow sensor.
Inspect the airflow & intake air temperature
sensor and air intake-related components. (See
2.3)
Any abnormalities discovered and remedied?
Nothing abnormal
detected
Completed
Replace the airflow & intake air temperature
sensor.
Reset the learning values using FUSO
Diagnostics. (See (2.4))
Repeat the learning procedure for the air flow
sensor until the learning values obtained become
constant. (The default learning value is called C.)
Remember that some vehicles can attain the
learning value C at the first learning but some
other vehicles cannot do it. (See (2.2))
Deviation of learning value C is more or less than
9%
More than 9%
Less than 9%
Note
Nox error is caused by
air flow sensor or intake
system fault
END of air flow sensor inspection
Inspect the other components and parts mentioned in “1.3 Checks at relevant system
sections”
Note
Nox error is caused by
other reason than air
flow sensor or intake
system.
Contact nearest
Mitsubishi-Fuso dealer.
22
13E-130
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Inspection procedure
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(1.3.2.1) Verification of learning value of airflow sensor

Check the learning values of the airflow by FUSO Diagnostics
tool and record them.
NB. In case of FUSO Diagnostics display “0.021”, the value means
“2.1%”.
(1.3.2.2) Perform the learning procedure for the airflow sensor.

There are two learning methods available for airflow sensor; one
performed with the vehicle stationary (first learning), and one
performed with the vehicle running.

However note that not all vehicles can perform first learning.
The vehicle that initial study is possible is as follows.
 ECU software version : from 67.1 (variant 020A*) 
 ECU software version : from 68.1








On vehicles where it is possible to do first learning, perform the
first learning procedure as follows after resetting the learning
value using FUSO Diagnostics:
Please note that before perform the AFS learning, be sure
to take AFS reset and turn off the engine once and wait at
least for 60 seconds to have the after-run finished
completely before proceeding to the verification check.
Turn off the air conditioning switch.
Using FUSO Diagnostics, check to ensure that the learning value
of the airflow sensor is “0”.
Run the engine until the engine cooling water temperature rises
above 60 ﾟ C {140 ﾟ F}. (on meter cluster: Over 5 points)
Wait for about 2 minutes with the engine idling.
Keep the engine revolution to high-idling for about 15 seconds
until the buzzer beeped.
Verify If the learning value is to be verified using FUSO
Diagnostics, turn off the engine once and wait at least for 60
seconds to have the after-run finished completely before
proceeding to the verification check.
23
13E-130
TROUBLESHOOTING
Inspection procedure
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5/16
Let the air flow sensor re-learning by following procedure. And
let it do repeatedly until the difference of the value be less than
2% (from the constant value).
Ex) In case of last learning value is “2.1%” (FUSO Diagnostics display
“0.021”)
Less than 2% : 0.1 to 4.1%( FUSO Diagnostics display “0.001 to
0.041”).
 Turn off the air conditioning switch.
 Run the engine until the engine cooling water temperature within
70 to 111℃ {158 to 232 ﾟ F}.
 Using FUSO Diagnostics, check to ensure that the intake air
temperature is 0 to 50℃{32 to 122 ﾟ F}.
 Using FUSO Diagnostics, check to ensure that the Atmospheric
pressure is more than 81kPa {12psi, 0.8kgf/cm2} (810hPa).
 Check that DPF manual regeneration is not active.
 Operate the engine idling in 20 minutes and do study by running.
Do not stop the engine in the mean time.
 In normal driving conditions, drive the vehicle with the
transmission in 5th gear for more than 7 seconds in full load
condition. Either fully loaded, steep hill or fast highway. This gives
the ECU a chance to learn. (For DUONIC-equipped vehicle, use
manual mode.)
 The upper limit of correction of values obtained from one time
learning is 3%.
 If the learning value is to be verified using FUSO Diagnostics, turn
off the engine once and wait at least for 60 seconds to have the
after run finished completely before proceeding to the verification
check.

(2.3) Inspection of airflow sensor & intake air temperature sensor and
intake air-related components

Check that there is no dust on the “clean side” of the air filter
system. If dust is present check that the rubber seal on the
filter is fitted correctly.

Check that there is no clogging or dirt in the air cleaner element
by following procedure.
 Shine light inside the element.
 Replace the element if thin spots or broken parts are evident in the
filter paper, or if the packing at the top of the element is damaged.
Also replace the element if the dust on the element is damp with
oily soot.
 Blow a jet of compressed air at a pressure not higher than 685kPa
{100psi, 7kgf/cm2} against the inside surfaces of the element.
 Move the compressed air jet up and down along all pleats of the
filter paper element.

Oily air flow & intake air temperature sensor can be evidence
that there is another faulty part in the system. In such a case,
check other air intake-related parts for contamination and clean
them if contaminated.
24
13E-130
TROUBLESHOOTING
Inspection procedure
13E-130
6/16
Check that there is no dirt or deformation in the metal mesh.

Attach the metal mesh to the air hose by direction of
illustration.




Key
Check the engagement and attachment state of Airflow & intake
air temperature sensor’s align slit and air hose’s key.
Inspect the lines connecting the airflow & intake air temperature
sensor with the air cleaner and the turbocharger for installed
conditions of clamps and air leakage through the sealing
sections.
Check that the clips are correctly closed and the sealing is
correct without gaps.
Inspect the gap between airflow & intake air temperature sensor
and turbocharger.
(2.4) Resetting method of learning values using FUSO Diagnostics

Use FUSO Diagnostics to reset the learning value of the airflow
sensor.
25
13E-130
TROUBLESHOOTING
Inspection procedure
13E-130
7/16
(3) SCR temperature sensor 1 and 2
HOT range

Run the engine at idle for 1 hour and then, using FUSO
Diagnostics, check that both SCR temperature sensors 1 and 2
give the same measurements (tolerance within 15℃ {27°F} at
a temperature between 50 and 150℃ {122 and 302 ﾟ F}).

After DPF manual regeneration is completed, using FUSO
Diagnostics, check that both SCR temperature sensors 1 and 2
give the same measurements (tolerance within 40℃{72 ﾟ F} at a
temperature between 480 and 600℃{896 and 1112 ﾟ F}).
COLD range

Inspect the sensor by whichever procedure for engine cold
temperature range condition.
(3.1) On-vehicle inspection
 After engine has cooled down. Check using FUSO Diagnostics
that both SCR temperature sensors give the same measurements
as other temperature sensors (tolerance within 15 ﾟ C {27 ﾟ F}).
(3.2) Inspection by removal
 Removal the SCR temperature sensor 1 and 2 and do visual
check and if it is dirty then you should clean it.
 Using a known temperature reference source, measure the
resistance between terminals 1 and 2.

Standard
value


－18℃ {-0.4 ﾟ F}
－12℃ {10 ﾟ F}
－7℃ {19 ﾟ F}
－1℃ {30 ﾟ F}
0℃ {32 ﾟ F}
4℃ {39 ﾟ F}
10℃ {50 ﾟ F}
16℃ {61 ﾟ F}
21℃ {70 ﾟ F}
27℃ {81 ﾟ F}
32℃ {90 ﾟ F}
38℃ {100 ﾟ F}
50℃ {122 ﾟ F}
100℃ {212 ﾟ F}
150℃ {302 ﾟ F}
187Ω
191Ω
195Ω
200Ω
201Ω
204Ω
208Ω
212Ω
217Ω
221Ω
225Ω
229Ω
239Ω
276Ω
313Ω
If the measurement is out of reference value, replace the sensor.
Measure resistance between each pin to sensor body. Resistance
should be greater than 1 MΩ (open circuit).
26
13E-130
TROUBLESHOOTING
Inspection procedure
13E-130
8/16
(4) Boost pressure & boost temperature sensor (temperature sensing section)

Check the boost pressure & temperature sensor by whichever procedure.
(4.1) On-vehicle inspection

When the engine is cold, check using FUSO Diagnostics that
this sensor gives the same measurement as other temperature
sensors (tolerance within 15℃ {27 ﾟ F}).

Visually check the sensor and clean it if contaminated.
(4.2) Inspection by removal

Remove boost pressure & temperature sensor with wiring.

Do visual check and if it is clogged with soot you should clean it.
Use distilled water.

Remove engine ECU connector.

Using a known temperature reference source, measure the
resistance between terminals 6 and 12 at the ECU connector
side.
-40℃ {-40 ﾟ F}
-30℃ {-22 ﾟ F}
-20℃ {-4 ﾟ F}
-10℃ {14 ﾟ F}
0℃ {32 ﾟ F}
10℃ {50 ﾟ F}
20℃ {68 ﾟ F}
30℃ {86 ﾟ F}
40℃
{104 ﾟ F}
Standard
value
50℃ {122 ﾟ F}
60℃ {140 ﾟ F}
70℃ {158 ﾟ F}
80℃ {176 ﾟ F}
90℃ {194 ﾟ F}
100℃ {212 ﾟ F}
110℃ {230 ﾟ F}
120℃ {248 ﾟ F}
130℃ {266 ﾟ F}

48153Ω
26855Ω
15614Ω
9426Ω
5886.7Ω
3791.1Ω
2510.6Ω
1715.4Ω
1199.6Ω
851.1Ω
612.27Ω
446.33Ω
329.48Ω
246.15Ω
186Ω
142.08Ω
109.65Ω
85.45Ω
If the measurement is out of standard value, replace the sensor.
27
13E-130
TROUBLESHOOTING
Inspection procedure
13E-130
9/16
(5) DEF dosing module, DEF supply module (motor and heater)



Check that there are no gas leaks and adhesion of deposits on
the attachment part of the DEF dosing module. If there is some
abnormality, then it is possibility that the attachment failure of
the DEF dosing module is the cause of NOx errors.
Remove the DEF dosing module. Check the DEF dosing module
and its mount are in a proper condition.
Replace gasket (ME556058), if dosing module is removed.
Gasket between dosing module and intermediate
pipe (ME556058）

OK


Verify that the injection hole in the DEF dosing module is free
from any deposits. Replace the DEF dosing module if the
injection hole is blocked.
Clean the DEF dosing module if other places than the injection
hole are deposited, please use distillated water.
When at the actuator test (Actuation) function of FUSO
Diagnostics there is no abnormality, there is no problem even
with when there is a deposit.
Injection hole
NOK

If any deposits are found on the mounting section of the DEF
dosing module, remove them completely before the module is
re-installed. After the module is installed, be sure to perform
forced DPF regeneration using FUSO Diagnostics.
28
13E-130
TROUBLESHOOTING
Inspection procedure
13E-130
10/16
Rewrite software to the latest version of the engine electronic
control unit.
CAUTION
 When the software of engine electronic control unit is not the
latest version, the actuator test (Actuations) function of FUSO
Diagnostics may not operate normally.
















Test the leakage(DEF): Accept by making use of the actuator
test (control) function of FUSO Diagnostics.
Perform the test with a DEF dosing module removed from
intermediate
pipe.
Recommended FUSO Diagnostics version:FDS-R12-2.2. or
newer
Verify that there is no leakage of DEF at the time of test
execution.
Replace the DEF dosing module if leakage is found at dosing
module tip.
Replace the DEF tube if leakage is found on DEF tube itself.
Re-check the DEF tube install condition if the leakage is found
from DEF tube junction part.
After the additional test is finished, make the starter switch
OFF and wait 60 minutes and finish the after run.
Test the dosing rate of DEF by making use of the actuator test
(control) function of FUSO Diagnostics.
Verify that the specified amount of solution is dosed. Replace
the DEF dosing module if the amount is abnormal, and then
perform the actuator test (control) again. If the amount is still
abnormal, replace the DEF supply module (motor and heater).
After addition test is finished, switch OFF and wait 60 seconds
to finish the after run.
Retest the dosing rate of DEF by making use of the actuator
test (control) function of FUSO Diagnostics to check for dosing
condition.
Verify that DEF is sprayed evenly in three directions as shown
in the illustration.
Replace the DEF dosing module if the spray pattern is abnormal.
After addition test is finished, switch OFF and wait 60 seconds
to finish the after run.
Attach a new gasket to the DEF dosing module.
Stick and install the DEF dosing module to intermediate pipe.

Push the clamp central part until it applies the hook of a new
clamp and stick and install the clamp to dosing module. In this
regard，do not adhere oil or grease to clamp and screw.
0
0
0
5-0.5
N･m｛3.7-0.37
lbs.ft, 0.5-0.05
kgf･m｝
Tightening torque




When attaching the DEF tube to the DEF dosing module. If it
needs the lubrication, please use distillated water.
Check the gas leakage after attaching the DEF dosing module.
29
13E-130
TROUBLESHOOTING
Inspection procedure
13E-130
11/16
(6) DFP exhaust gas temperature sensor 1 and 2
(6.1) Cleaning

Check that the sensor portion is free of soot, oily substance, etc.

If not, clean the sensor portion as follows.

Spray a cleaner on the sensor portion from 2 or 3 cm {0.79 or 1.18in.} away.

Recommended cleaners:
Nonchlorinated solvent

In 20 to 30 seconds after spraying, wipe the sensor portion clear of the
sprayed cleaner using a soft waste cloth the like.
CAUTION
Be sure to wait for 20 to 30 seconds before wiping. It takes the
cleaner that long to dissolve foreign matter.
(6.2) Inspection

Removal the DPF exhaust gas temperature sensor 1 and 2 and do visual
check and if it is dirty then you should clean it.

Using a known temperature reference source, measure the resistance
between terminals 1 and 2.
－18℃ {-0.4 ﾟ F}
187Ω
－12℃ {10 ﾟ F}
191Ω
－7℃ {19 ﾟ F}
195Ω
－1℃ {30 ﾟ F}
200Ω
0℃ {32 ﾟ F}
201Ω
4℃ {39 ﾟ F}
204Ω
10℃
{
5
0
ﾟ
F}
208Ω
Standard
16℃ {61 ﾟ F}
212Ω
value
21℃ {70 ﾟ F}
217Ω
27℃ {81 ﾟ F}
221Ω
32℃ {90 ﾟ F}
225Ω
38℃ {100 ﾟ F}
229Ω
50℃ {122 ﾟ F}
239Ω
100℃ {212 ﾟ F}
276Ω
150℃ {302 ﾟ F}
313Ω


If the measurement is out of reference value, replace the sensor.
Measure resistance between each pin to sensor body. Resistance should be
greater than 1 MΩ (open circuit).
30
13E-130
TROUBLESHOOTING
Inspection procedure
13E-130
12/16
(7) Humidity and Intake Air temperature sensor
(7.1) inspection of sensor output signal

Humidity and Intake
air temperature




Write down the humidity value on FD service #056 at key-on and engine off
state. (value A)
Key off at once and wait for around one second to complete engine after run.
Write down again the humidity value at key-on and engine off state. (value B :
second time)
Do once again (value C : third time)
Compare these three values if the values are inside of below.
+-10%
Replace the sensor if the values out of threshold.
(7.2) Check daiagnosis failure code in the past

Replace the sensor if the diagnosis code of “354-17” or “354-18” was
recorded in the failure memory.
31
TROUBLESHOOTING
Inspection procedure
13E-130
13E-130
13/16
1.4 Probable cause of diagnostic code occurrence
 Check the diagnostic code which occurs simultaneously with Diagnostic code 3361-18 &520558-31. And if there is the
code in bellow chart, Check the part which caused the diagnostic code ◎ or ○for each codes. (See13E-100)
For inspection procedures for parts marked with ★, refer to “1.3 Checks at relevant system sections” as well.
Atmospheric sensor (built-in engine ECU.)
◎ ◎
Remarks
3242-2
3241-31
3058-18
3058-16
3058-1
3058-0
3050-31
1174-2
1172-2
172-2
171-7
132-21
132-20
110-31
110-12
102-17
102-15
27-17
Parts to be inspected
27-15
Diagnostic codes that occurred
*1
Air cleaner
See Gr15
Intake manifold
○ ○ ○ ○
See Gr15
★Metal mesh
See Gr15
★Position of Air flow and intake air
temperature sensor
See Gr15
Air flow and
intake air
temperature
sensor
★Air flow sensor
Humidity and
intake air
temperature
sensor
Humidity sensor
◎ ◎
Intake air temperature
sensor
○ ○ ○ ○
◎ ◎ ○ ○
See Gr13E-#306
See Gr13E-#306
See Gr13E-#347
Intake air temperature
sensor
◎ ◎ ○ ◎
See Gr13E-#347
Turbocharger
○ ○ ○ ○
See Gr15
VGT position sensor
Water temperature sensor
○ ◎
See Gr13E-#262
Thermostat
◎ ○
See Gr14
Intercooler outlet temperature sensor〈EPA〉
◎ ○ ○
*1
EGR cooler outlet temperature sensor〈EPA〉
*1
Boost pressure ★Boost temperature
and temperature sensor
sensor
Boost pressure sensor
◎ ◎ ○
See Gr13E-#346
◎ ◎
See Gr13E-#346
◎ ◎ ○ ○
*2
◎ ◎ ○ ○
*2
EGR cooler
○ ○
See Gr17
Injector
○ ○ ○ ○
See Gr13E-#582
EGR actuator
EGR valve
position sensor
◎ ◎
Injection timing
See Gr11
Pressure sensor (Common rail unit)
*2
EBS (Exhaust Brake system)
Lambda sensor
○ ○ ◎ ◎
◎
Exhaust gas temperature sensor 1
*2
*3
◎ ○ See Gr13E-#336
Diesel Oxidation Catalyst
*3
Exhaust gas temperature sensor 2
○ ◎ See Gr13E-#336
DPF
*3
DPF differential pressure sensor
See Gr13E-#334
★SCR temperature sensor1
○ ○ See Gr13E-#336
★SCR temperature sensor2
○ ○ See Gr13E-#336
★NOx sensor
◎
◎: Major probable causes for diagnostic code occurrence
○: Possible causes for diagnostic code occurrence
*1:See Gr13E ”FUSO Diagnostics Service Data (Actual values)”
*2:See Gr13E ”FUSO Diagnostics Actuator Test (Actuations)”
*3 Contact nearest Mitsubishi-Fuso dealer.
32
TROUBLESHOOTING
Inspection procedure
13E-130
13E-130
Atmospheric sensor (built-in engine ECU.)
520213-0
520212-1
520212-0
520211-1
520211-0
520210-2
520207-2
520193-21
520193-20
520192-21 *4
3599-12
3598-12
3597-12
3246-2
3245-31
Parts to be inspected
3244-2
Diagnositic codes that occurred
520192-20 *4
14/16
Remarks
*1
Air cleaner
◎ ◎ ◎ ◎
See Gr15
Intake manifold
◎ ◎ ◎ ◎
See Gr15
★Metal mesh
◎ ◎ ◎ ◎
See Gr15
★Position of Air flow and intake air
temperature sensor
◎ ◎ ◎ ◎
See Gr15
◎ ◎ ◎ ◎
See Gr13E-#306
Air flow and
intake air
temperature
sensor
★Air flow sensor
Humidity and
intake air
temperature
sensor
Humidity sensor
Intake air temperature
sensor
See Gr13E-#306
◎
See Gr13E-#347
Intake air temperature
sensor
See Gr13E-#347
Turbocharger
○ ○ ○ ○
VGT position sensor
See Gr15
◎
Water temperature sensor
◎
See Gr13E-#262
Thermostat
See Gr14
Intercooler outlet temperature sensor〈EPA〉
*1
EGR cooler outlet temperature sensor〈EPA〉
*1
Boost pressure ★Boost temperature
and temperature sensor
sensor
Boost pressure sensor
EGR actuator
◎
EGR valve
★position sensor
EGR cooler
◎ ◎ ◎ ◎ ◎
See Gr13E-#346
◎ ◎ ◎ ◎
See Gr13E-#346
○ ○ ○ ○
*2
◎ ○ ○ ○ ○
*2
○ ○ ○ ○
Injector
◎ ◎ ◎ ◎ ◎ ◎ See Gr13E-#582
Injection timing
○ ○ ○ ○ ○ ○ See Gr11
Pressure sensor (Common rail unit)
◎
EBS (Exhaust Brake system)
*2
○ ○ ○ ○
Lambda sensor
Exhaust gas temperature sensor 1
*2
*3
◎ ○ ○
See Gr13E-#336
Diesel Oxidation Catalyst
Exhaust gas temperature sensor 2
See Gr17
*3
◎ ○ ○
See Gr13E-#336
DPF
*3
DPF differential pressure sensor
◎ ○ ○ ○ ○
See Gr13E-#334
★SCR temperature sensor1
○ ◎
See Gr13E-#336
★SCR temperature sensor2
◎ ○
See Gr13E-#336
★NOx sensor
◎: Major probable causes for diagnositic code occurrence
○: Possible causes for diagnositic code occurrence
*1:See Gr13E ”FUSO Diagnostics Service Data (Actual values)”
*2:See Gr13E ”FUSO Diagnostics Actuator Test (Actuations)”
*3 Contact nearest Mitsubishi-Fuso dealer.
*4: For this diagnositic code inspection refer to “1.3 (2) Air flow & intake air temperature sensor (air flow sensing section)”
33
TROUBLESHOOTING
Inspection procedure
13E-130
13E-130
15/16
520491-2
520379-1
520379-0
520364-2
520355-1
520355-0
520354-1
520354-0
520353-1
520353-0
520352-1
520352-0
520340-0
520330-2
520214-1
520214-0
Parts to be inspected
520213-1
Diagnositic codes that occurred
Remarks
Atmospheric sensor (built-in engine ECU.)
*1
Air cleaner
See Gr15
Intake manifold
See Gr15
★Metal mesh
See Gr15
★Position of Air flow and intake air
temperature sensor
See Gr15
Air flow and
intake air
temperature
sensor
★Air flow sensor
○ ○
Intake air temperature
sensor
See Gr13E-#306
Humidity and
intake air
temperature
sensor
Humidity sensor
See Gr13E-#347
Intake air temperature
sensor
See Gr13E-#347
Turbocharger
See Gr13E-#306
See Gr15
VGT position sensor
Water temperature sensor
See Gr13E-#262
Thermostat
See Gr14
Intercooler outlet temperature sensor〈EPA〉
*1
EGR cooler outlet temperature sensor〈EPA〉
◎
*1
Boost pressure ★Boost temperature
and temperature sensor
sensor
Boost pressure sensor
EGR actuator
See Gr13E-#346
See Gr13E-#346
EGR valve
○
*2
★position sensor
○
*2
◎
See Gr17
EGR cooler
Injector
◎ ◎ ◎
Injection timing
○ ○ ○
◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
◎ ◎
See Gr13E-#582
See Gr11
Pressure sensor (Common rail unit)
○ ○ ○ ○ ○ ○ ○ ○
○ ○
EBS (Exhaust Brake system)
*2
*2
Lambda sensor
○ ○ ○ ○ ○ ○ ○ ○
Exhaust gas temperature sensor 1
○ ○
○
Diesel Oxidation Catalyst
*3
◎ See Gr13E-#336
◎ *3
Exhaust gas temperature sensor 2
○
◎ See Gr13E-#336
DPF
*3
DPF differential pressure sensor
See Gr13E-#334
★SCR temperature sensor1
◎
○
See Gr13E-#336
★SCR temperature sensor2
◎
○
See Gr13E-#336
★NOx sensor
◎: Major probable causes for diagnositic code occurrence
○: Possible causes for diagnositic code occurrence
*1:See Gr13E ”FUSO Diagnostics Service Data (Actual values)”
*2:See Gr13E ”FUSO Diagnostics Actuator Test (Actuations)”
*3 Contact nearest Mitsubishi-Fuso dealer.
34
13E-130
TROUBLESHOOTING
Inspection procedure
13E-130
16/16
1.5 Procedure of eliminate the warning lamp 
(1) The case of the mileage or running time of after diagnostic code was occurred are less than 320km｛200miles｝ or 4
hours. (Torque and power is restricted)




Turn the starter switch to the OFF position, wait at least 60
seconds and complete the after-run.
Turn the starter switch to the ON position and after a lapse of
10 seconds or longer, start the engine.
Drive the vehicle at 80 km/h about for 30 minutes to collect the
service data (actual measurements) using FUSO Diagnostics.
Then check to confirm that the NOx sensor is active (NOx value
of FUSO Diagnostics other than “-1-” is indicated).( The value
of SCR temperature sensor 1is more than 250℃ {482 ﾟ F})
After running of above procedure, check the warning lamp is
eliminated.
(2) The case of the mileage or running time of after diagnostic code was occurred are more than 320km｛200miles｝ or 4
hours. (Creep mode)
 Turn the starter switch to the OFF position, wait at least 60 seconds and complete the after-run.
 Turn the starter switch to the ON position and after a lapse of 10 seconds or longer, start the engine.
 Warm up the engine until the engine coolant temperature exceeds 60℃ {140 ﾟ F}.
 Press the Diesel Particulate Filter cleaning switch to perform the manual regeneration of Diesel Particulate Filter. In
the manual regeneration, the engine speed increases to 1500 – 2500 rpm and it takes approximately 20 minutes to
complete the manual regeneration.
 After that, the engine speed drops to idle and warning goes out. It may not go out immediately and it can take 10
minutes for the lamp to go out.
35