Engine Controls -Vibration Idling In Gear
Classification:EC13-003
Reference
NTB13-021
Date:
March 11, 2013
2010-2012 FRONTIER, PATHFINDER AND XTERRA; VIBRATION WHILE IDLING AFTER SHIFTING INTO GEAR
APPLIED VEHICLES:
2010 - 2012 Frontier (D40)
2010 - 2012 Pathfinder (R51)
2010 - 2012 Xterra (N50)
APPLIED ENGINE:
VQ40
APPLIED TRANSMISSIONS:
2010 Automatic only
2011 - 2012 All
IF YOU CONFIRM:
^ The idle seems low or the idle is rough when the NC compressor is on or when the NC compressor turns on.
And
^ No other ECM DTCs are present.
ACTION:
Confirm this bulletin applies.
^ Check and compare your Current ECM Part Number to Table A.
If the part number does not match one in Table A, this bulletin does not apply. Go back to ASIST for further diagnostic and repair information.
If this bulletin applies, reprogram the ECM.
CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the claims coding:
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.
SERVICE PROCEDURE
NOTE:
^ Most instructions for reprogramming with CONSULT-III plus (C-III plus) are displayed on the Consult PC Screen.
^ If you are not familiar with the reprogramming procedure, visit the "CONSULT-III plus (C-III plus) ECM Reprogramming" general procedure.
^ Take the vehicle for a 10 minute drive in order to meet the following Idle Air Volume Learn (IAVL) conditions:
> Engine coolant temperature: 70 - 100°F
(158 - 212°F)
> Battery voltage: More than 12.9V (At idle)
> Transmission warmed up
^ After reprogramming is complete, you will be required to perform Throttle Valve Closed Position, Idle Air Volume Learn, Accelerator Closed Position, and DTC erase.
CAUTION
1. Connect the CONSULT PC to the vehicle to begin the reprogramming procedure.
2. Open ASIST on the CONSULT PC and start C-III plus.
3. Wait for the plus VI to be recognized / connected.
^ The serial number will display when the plus VI is recognized / connected.
4. Select Re/programming, Configuration.
5. Follow the on-screen instructions and navigate the C-III plus to the screen shown in Figure 2.
6. When you get to the screen shown in Figure 2, confirm this bulletin applies as follows.
A. Find the ECM Part Number and write it on the repair order.
B. Compare the P/N you wrote down to the numbers in the Current ECM Part Number column in Table A.
^ If there is a match, this bulletin applies. Continue with the reprogramming procedure.
^ If there is not a match, this bulletin does not apply. Close C-III plus and refer to ASIST for further diagnostic information.
7. Follow the on-screen instructions to navigate C-III plus and reprogram the ECM.
8. When the screen in Figure 4 displays, reprogramming is complete.
NOTE:
If the screen in Figure 4 does not display (reprogramming does not complete), refer to the information.
9. Disconnect the battery charger from the vehicle.
10. Select Next.
ECM recovery:
Do not disconnect plus VI or shut down Consult III plus if reprogramming does not complete.
If reprogramming does not complete and the "!?" icon displays as shown in Figure 5:
^ Check battery voltage
(12.0-15.5 V).
^ Ignition is ON, engine OFF.
^ External Bluetooth(R) devices are OFF.
^ All electrical loads are OFF.
^ Select retry and follow the on screen instructions.
^ "Retry may not go through on first attempt and can be selected more than once.
If reprogramming does not complete and the "X" icon displays as shown in Figure 6:
^ Check battery voltage
(12.0 - 15.5 V).
^ CONSULT NC adapter is plugged in.
^ Ignition is ON, engine OFF.
^ Transmission is in Park.
^ All C-III plus / VI cables are securely connected.
^ All C-III plus updates are installed.
^ Select Home, and restart the reprogram procedure from the beginning.
11. Follow the on-screen instructions to perform the following:
^ Throttle Valve Closed Position
^ Idle Air Volume Learn (IAVL)
NOTE:
^ Listed below are common conditions required for IAVL to complete.
^ If IAVL does not complete within a few minutes, a condition may be out of range.
^ Refer to the appropriate Electronic Service Manual (ESM) for specific conditions required for the vehicle you are working on.
> Engine coolant temperature: 70 - 100° C (158 - 212°F)
> Battery voltage: More than 12.9V (At idle)
> Selector lever: P or N
> Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
> Steering wheel: Neutral (Straight-ahead position)
> Vehicle speed: Stopped
> Transmission: Warmed up
^ Accelerator Pedal Close Position Learning
^ Erase DTCs
12. When the entire reprogramming process is complete, the screen in Figure 7 will display.
13. Verify the before and after part numbers are different.
14. Print a copy of this screen (Figure 7) and attach it to the repair order for warranty documentation.
15. Select Confirm.
16. Close C-III plus.
17. Turn the ignition OFF.
18. Disconnect the plus VI from the vehicle.
19. Test drive the vehicle and make sure it operates correctly and the MIL is OFF.
^ If the MIL comes ON, go back to ASIST for further diagnostic information.
^ Diagnosis and repairs beyond ECM reprogramming are not covered by this bulletin.
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