Engine Controls - Engine RPM Increase While Braking

Classification:
EC07-017a

Reference:
ITB07-048a

Date:
February 21, 2008

The bulletin has been amended. This version has a link to the CONSULT-III ECM Reprogramming General Procedure, addition of Applied VIN and addition of Applied Date. Please discard all copies of the earlier version.

APPLIED VEHICLE:

2008 G37 (CV36) with Automatic Transmission ONLY

APPLIED DATE:
Built before December 6, 2007

APPLIED VIN:
Built before JNKCV64E(*)8M 115669

IF YOU CONFIRM:
The engine intermittently experiences a small RPM increase (less than 500 RPM) for a short duration during braking.

ACTIONS:

1. Refer to Step 2 in the Service Procedure to confirm this bulletin applies to the vehicle you are working on.

2. If this bulletin applies; reprogram the ECM.

CLAIMS INFORMATION





Submit a Primary Failed Part (PP) line claim using the claims coding shown.

IMPORTANT:
The purpose of "ACTIONS" (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

1. Connect C-III to the vehicle to begin the reprogramming procedure.

2. When you get to the ECM Reprogramming screen shown, confirm this bulletin applies as follows:





A. On your C-III screen, look at the Part Number column:

^ If this column is blank (no part number listed), this bulletin does not apply. Close C-III and refer to ASIST for further diagnostic information.

^ If a Part Number is listed, write it on the Repair Order.

B. Go to C.





C. Compare the Part Number you wrote down to the numbers in the Current ECM Part Number column.

^ If there is a match, this bulletin applies; continue with the reprogramming procedure.

NOTE:
If there are two lines (two reprogramming options) on your C-III screen, use the one that does not have the message "Caution! Use ONLY with ITBXX-XXX".

^ If there is not a match, this bulletin does not apply. Close C-III and refer to ASIST for further diagnostic information.





3. If this bulletin applies and you have performed ECM reprogramming, when complete the screen shown appears. Print this screen and attach it to the Repair Order for Warranty documentation.

4. Make sure to erase DTCs from all Systems.

NOTE:
During the reprogramming DTCs will set in several systems and must be erased.

5. Test drive the vehicle and make sure it operates correctly and the Check Engine light is OFF.

^ If the Check Engine light comes ON; diagnose, perform repairs, and erase DTCs.

^ Diagnosis and repairs beyond the ECM reprogramming are not covered by this bulletin.





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