NTB12086a

Classification:
BR12-003a
Reference:
Date:
NTB12-086a
October 25, 2012
2011-2012 LEAF; BRAKE PEDAL SENSITIVE AT SPEEDS
BELOW 15 MPH
This bulletin has been amended. The Title, Applied Vehicles, Applied VIN and Date, and If You
Confirm sections have been revised. Please discard all previous versions.
APPLIED VEHICLES:
APPLIED VIN AND DATE :
2011-2012 LEAF (ZE0)
Built before JN1AZ0CP(*)CT 023494 // June 6, 2012
IF YOU CONFIRM
•
Customer may experience some brake sensitivity at speeds below 15 mph. The
customer may experience this issue while in stop-and-go traffic conditions.
And
•
No DTCs are present in the Electrically-driven Intelligent Brake Control Unit.
¾ If DTCs are present, refer to the specific section of the applicable Electronic
Service Manual (ESM) and diagnose first.
ACTION
1. Refer to step 14 in the SERVICE PROCEDURE to confirm this bulletin applies to the
vehicle you are working on.
2. If this bulletin applies, reprogram the Electrically-driven Intelligent Brake Control Unit
with CONSULT III plus (CIII plus).
IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you
will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it
contains information that is essential to successfully completing this repair.
Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are
properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job
properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO
NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle.
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CLAIMS INFORMATION
Submit a Primary Part (PFP) line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE SYM
DIA
FRT
Reprogram E-Act
(1)
PX65AA
ZE
32
0.5
(1) Refer to the electronic parts catalog (FAST) and use the appropriate ABS actuator
assembly part number (46007-*****) as the Primary Part (PFP).
SERVICE PROCEDURE
Reprogram Electrically-driven Intelligent Brake Control Unit
1. Before continuing, it is IMPORTANT to make sure:
•
ASIST on the CONSULT PC has been freshly synchronized (updated).
•
All CONSULT related software updates (if any) have been installed.
NOTE: The CONSULT PC automatically gets all reprogramming software during
ASIST synchronization.
CAUTION:
•
Turn off all cell phones and external Bluetooth devices within range of C-III plus.
•
Do not touch C-III plus during reprogramming.
•
Do not disconnect the AC adaptor during reprogramming.
•
Do not disconnect the “plus” VI’s diagnostic cables during reprogramming.
•
Do not touch the power (“ignition”) switch during reprogramming.
•
Do not touch any electrical switch during reprogramming.
2. Have the GR8 Multitasking Battery Diagnostic Station (battery tester/charger)
available and ready to use.
•
For proper setup, go to Page 20, GR8 Multitasking Battery Diagnostic Station.
•
Do not connect the battery tester/charger at this time. The battery tester/charger
will be set up later in this bulletin.
CAUTION: Do not charge the High Voltage (HV) Lithium Ion battery during
reprogramming.
NOTE:
¾ Check to see if the timer for either charging or climate control is on. If on, turn
it off and make sure to turn it back on after reprogramming.
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3. Once all ASIST and CONSULT related updates have been verified/performed, attach
the CONSULT PC to vehicle.
•
Connect the plus VI to the vehicle.
•
Connect the CONSULT PC to the plus VI with the USB cable.
•
Connect the AC adapter to the CONSULT PC.
4. Turn on the CONSULT PC, and then open C-III plus.
5. Depress the vehicle’s power (“ignition”) switch twice without depressing the
brake pedal.
•
The meter and gauges will illuminate.
CAUTION: Do Not set the vehicle in “READY to drive” mode.
NOTE: Make sure all accessories are turned off.
6. After the plus VI is recognized, select Reprogramming Configuration (Write).
NOTE: Make sure all applications other than C-III plus are closed.
plus VI is
recognized
Step
6
Figure 1
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7. Select Next.
Step
7
Figure 2
8. Select LEAF and 2011/ 2012 or Automatic Selection (VIN).
•
If Automatic Selection (VIN) is selected, wait for the Reading VIN screen to
complete (picture not shown).
9. Select Select.
This works,
too
Step
8
Step
9
Figure 3
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10. Verify the VIN in VIN or Chassis # matches that of the vehicle’s.
•
If the correct VIN exists, select Confirm.
Verify
here
If OK, select
Confirm
Figure 4
11. On the next screen, select Confirm.
Step
11
Figure 5
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12. Select BRAKE.
•
Wait for system call to complete.
Step
12
Figure 6
13. Select Reprogramming.
Step
13
Figure 7
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14. Write down the Part Number on the vehicle’s repair order (see Figure 8).
•
If the BRAKE part number is 46007-3NA0A, continue with reprogramming.
¾ Select Save, and then go to Step 15.
•
If the BRAKE part number is not 46007-3NA0A, this bulletin does not apply or it has
already been done. Close C-III plus (select Home, and then the “X”) and the
CONSULT PC, disconnect from the vehicle.
If BRAKE P/N is
not 46007-3NA0A,
select Home, and
then select “X”
Verify
here
If OK, select
Save
Figure 8
15. Select Next.
Step
15
Figure 9
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16. Read the precautions on page 1, and then select page 2 (page 2 not shown) with
arrow. After reading page 2, select Confirmed instructions, and then select Next.
Step
16
Figure 10
NOTE: In some cases, more than one new P/N for reprogramming is available.
¾ In this case, the screen in Figure 11 will display.
¾ Select and use the reprogramming option that does not have the message
“Caution! Use ONLY with NTBXX-XXX”.
•
If you get this screen and it is blank (no reprogramming listed), it may mean that
there is no reprogramming available for this vehicle, this bulletin does not apply or it
has already been done.
Figure 11
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17. Verify “Current” and “After Reprogramming” part numbers are listed, then select Next.
Verify P/Ns
above, then
select Next
Figure 12
18. If this screen appears, select Other Operation.
Step
18
Figure 13
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19. Open the hood, and then set up the GR8 Multitasking Battery Diagnostic Station
(battery tester/charger) for the 12V battery.
•
For battery charger/tester setup, refer to Page 20, GR8 Multitasking Battery
Diagnostic Station Setup.
CAUTION: Battery voltage must stay between 12 volts and 15.5 volts.
CAUTION: Do not charge the High Voltage (HV) Lithium Ion battery during
reprogramming.
12V battery
DO NOT CHARGE
during reprogramming
Figure 14
20. Confirm that battery voltage is correct, and then select Next.
NOTE: Battery voltage must stay within specified range to make the indicator turn green.
Monitor 12V
battery
voltage here
Must be
“Green” before
selecting Next
Figure 15
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21. On the next screen, select Start.
•
The reprogramming process begins when Start has been selected.
NOTE: For reprogramming to continue, vehicle 12 V battery voltage must stay
within 12 volts and 13.5 volts. Make sure the voltage level is sufficient.
Monitor 12 V
battery
voltage here
Step
21
Figure 16
22. Wait for both bar graphs to complete.
Step
21
Figure 17
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23. When the screen in Figure 18 appears, reprogramming is complete.
a. Select Next.
b. Wait for System Call to complete.
Step
23a
Figure 18
24. Erase all DTCs:
a. Turn “ignition” off by depressing the power switch once.
• The screen in Figure 19 will read OFF after pressing the power switch once.
ON to
OFF
Figure 19
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b. Turn “ignition” on by depressing the power switch twice.
• Do not step on the brake pedal when depressing the power switch.
• The screen in Figure 20 will read ON after pressing the power switch twice.
NOTE: Do not be confused by any screen messages. At this point, simply
turn the “ignition” on.
OFF
to ON
Figure 20
c. Wait for the bar graph in the ERASE window to complete 100%.
Step
24c
Figure 21
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25. Verify the part number has changed.
a. Print a copy by selecting Print.
NOTE: Before and after part numbers on your print-out may be switched compared
to your CONSULT PC screen. This is ok.
b. Attach the copy to the repair order.
c. Once a copy has been printed, select Confirm.
Step
25
Step
25a
Step
25c
Figure 22
26. Once reprogramming has completed:
a. Select Home.
b. Turn “ignition” off (depress power switch once).
¾ Do not close C-III plus at this time.
c. Disconnect the battery tester/charger from the 12 V battery.
¾ For battery tester/charger disconnect procedure, go to Page 20
GR8 Multitasking Battery Diagnostic Station, Step 14.
Step
27
Step
26a
Figure 23
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27. Close C-III plus (see previous page, Figure 23).
•
Do not turn off the CONSULT PC.
28. Place the vehicle in “READY to drive” mode:
•
Apply the parking brake.
•
Depress the brake pedal.
•
Depress the power switch once.
•
The meter and gauges will illuminate.
29. Open C-III plus.
30. Once the plus VI is recognized, select Diagnosis (All Systems).
plus VI
recognized
Step
30
Figure 24
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31. Select LEAF and 2011/2012 or Automatic Selection (VIN).
•
If Automatic Selection (VIN) is selected, wait for the Reading VIN screen to
complete.
32. Select Select or Detect Vehicle, whichever displays.
This works,
too
Step
31
Step 32: May display
Detect Vehicle
Figure 25
33. Verify the VIN in VIN or Chassis # matches that of the vehicle’s.
•
If the correct VIN exists, select Confirm.
Verify
here
If OK, select
Confirm
Figure 26
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34. Wait for system call to complete.
Figure 27
35. To clear any remaining DTC’s (as sown in Figure 28):
a. Turn “ignition” off (depress power switch once).
b. Close CIII plus application.
c. Wait for 5 minutes.
Figure 28
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36. After 5 minutes, check DTC status by again performing steps 28 through 34. Once done
proceed to step 37.
•
Figure 29 should now be displayed with C1A60 as a PAST DTC.
Now
PAST
Figure 29
37. Turn “ignition” OFF again (depress power switch once), and wait 15 seconds; then turn
ignition to “READY to drive” mode.
•
Figure 30 should now be displayed with U110D as a past DTC.
Now
PAST
Figure 30
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38 Select ERASE button.
•
All DTC’s should now be clear.
Figure 31
39. Once all DTCs have been erased:
a. Select Home, and then on the next screen, select Yes (picture not shown).
b. Close C-III plus, turn off the CONSULT PC, and then disconnect the
CONSULT PC and plus VI from the vehicle.
c. Turn “ignition” off (depress power switch once).
40. Verify the repair is complete:
a. Place the vehicle in the “READY to drive” mode (press power switch while stepping
on the brake pedal).
b. Verify no error messages are displayed in the meter and gauges or center multifunction control panel.
c. If the timer for either charging or climate control was on prior to reprogramming, turn
them back on.
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GR8 Multitasking Battery Diagnostic Station Setup
1. Connect the battery tester/charger to the 12 V battery, positive cable first.
2. Plug in the battery tester/charger (AC voltage supply), and then turn on the battery
tester/charger.
3. Select the preferred language, and then depress NEXT.
4. Select the USER, and then depress NEXT.
5. Confirm the USER, and then depress NEXT.
6. Select System Test, and then depress the “down” arrow.
7. Select the Manual icon, and then depress NEXT.
8. Select REGULAR FLOODED, and then depress NEXT.
9. Select LIMIT VOLTAGE, and then depress NEXT.
10. Set MIN VOLTAGE to 12.40 volts, and then depress NEXT.
•
Use the arrows to raise and lower the voltage setting.
11. Set the charging time for 40 minutes, and then depress NEXT.
12. Wait for the system to go through Test mode and Advanced Test mode.
13. Perform VCM reprogramming now.
14. Once VCM reprogramming has completed: Depress STOP, depress the power switch to
OFF, and then unplug the battery tester charger from the AC voltage supply.
NOTE: For further details on battery tester/charger connection and set-up, refer to the
battery tester/charger’s instruction manual.
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