K86094641

Solution K86094641
Thursday, May 3, 2018 10:47:29 PM CEST
NA_MACK_Vehicle_Range
NA_MACK_Vehicle_Ran
ge
LR , LEU , MRU , CHU , CXU , GU , TD
Engine family
Engine family
Mack , MP7 , MP8 , MP10
Emission Standard
Emission Standard
US16 , US15 , US14 GHG
** SOLUTION **
Title (customer effect)
Mack Chassis - Diagnostic Trouble Code ( DTC ) P226C Intermittently Lighting The
Malfunction Indicator Lamp ( MIL ) - US14+OBD13, US14+OBD15 And
US14+OBD16 Emissions (Non-Common Rail Fuel System), Commonly Model Years
2015 to 2017
Cause
US14+OBD13, US14+OBD15 And US14+OBD16 Emissions (Non-Common Rail Fuel
System), Commonly Model Years 2015 to 2017 vehicles may intermittently log DTC
P226C.
Solution
Overview
US14+OBD13, US14+OBD15 And US14+OBD16 (pre-common rail) chassis may log DTC
P226C during operation. The diagnostic process that this DTC sets for is the monitor of boost
pressure change under sudden changes in engine load. The code is likely to set intermittently
and it may be difficult or not possible to duplicate during diagnosis. Guided Diagnostics may
result in No Fault Found (NFF). This issue is more likely to be observed in chassis with a 13L
engine and a lower power rating, and chassis with dual torque engine ratings. This code will
not affect performance or driveability. Turbocharger replacement is not a valid repair for
this code.
Repair
Verify the chassis emissions level
- Details can be found in the Product Details box on the Product tab in PTT as seen below:
Review the Detailed Status Information for the relevant code on the DTC Readout.
For US14+OBD13
- Refer to FSB 284-066 Engine Control Module (ECM) and Aftertreatment Control
Module (ACM), Reprogramming.
• This bulletin is current as of 17 April 2018.
For US14+OBD15
- Software improvements have been released to address this code. Refer to the table
below:
For US14+OBD16
- Refer to FSB 284-065 Engine Control Module (ECM) and Aftertreatment Control
Module (ACM), Reprogramming.
• This bulletin is current as of 17 April 2018.
If software is found to be current, diagnosis should only proceed if the Confirmed DTC
status for P226C is True as shown above. If the status is False, other symptoms or fault codes
should be diagnosed and the codes cleared when complete.
If any other symptoms or related codes are present, they should be diagnosed prior to
beginning steps for P226C.
Campaign code
FSB284-065, FSB284-066
Solution visibility
Dealer distribution
Function(s)/component(s) affected
Function affected
Turbocharger , 1 1 0 EMS , MID 128 – EMS , EECU , Diagnostic tool
Function Group
Function Group
255 turbocharger , 284 control system, fuel supply
Customer effect
Main customer effect
calibration/programming/pairing/missing operation , diagnostics/methodology , fault
code/display
Lights/Messages on
information display
Driver's information warning pictogram
Fault code(s)
OBD 2013 Diagnostic
Trouble Codes
P226C
Conditions
Vehicle operating mode
Frequency of occurrence of
problem
when driving , when stationary
random
Administration
Author
ut01793
Last modified by
RU4469V
Creation date
23-06-2016 20:06
Date of last update
20-04-2018 21:04
Status
Published