Engine Controls - MIL ON/Intake Manifold DTC's Stored
24 08 10March 3, 2008.
2016868/2
Supersedes Technical Service Bulletin Group 24 number 08-02 dated Jan. 17, 2008 to add a reference to RVU CH.
Vehicle Information
MIL on (DTC P0642, P2004, P2008, P3137, P3138 in ECM)
Condition
^ MIL on.
^ One or more of the following DTCs is stored in the ECM data memory:
^ ^DTC P0642 (Sensor Voltage Circuit A, Low Voltage)
^ ^ DTC P2004 (Intake Manifold Runner Control Bank 1, Stuck Open)
^ DTC P2008 (Intake Flap for Airflow Control, Electrical Malfunction)
^ DTC P3137 (Intake Manifold Runner Control Circuit Bank 1, Basic Settings not Carried Out)
^ DTC P3138 (Intake Flap for Airflow Control, Control Difference)
Technical Background
^ ECM software.
^ The Intake Flap Motor V157 or Intake Manifold Runner Position Sensor G336 may be inoperative. (Both are included in one single unit.)
Production Solution
^ Optimized the ECM software (same as RVU CH).
^ Improved the manufacturing process for the Intake Flap Motor V157 and Intake Manifold Runner Position Sensor G336.
Service
1. For A4 and A4 Cabriolet models with ECM SW Part No. 8E0 910 115 P (early MY07), replace the Intake Flap Motor V157 and perform the basic settings (channel 142). Do not perform steps 2 7. For all other vehicles proceed with the next steps.
2. Check to see if RVU CH applies to the vehicle and if it has been performed. The ECM software update below is identical to the procedure described for RVU CH.
If RVU CH applies to the vehicle and it has not been performed, perform RVU CH first. (See also RVU CH for more details.)
3. Check the ECM to ensure it has not been tuned.
Note:
Any Update Programming procedure (flash) may overwrite any tuned ECM or TCM programming. A tuned ECM or TCM is described as any ECM or TCM altered so as to perform outside the normal parameters and specifications approved by Audi of America, Inc.
Current Tuned ECM or TCM Requirements
If you encounter a vehicle with a tuned ECM or TCM, your dealership must do the following before performing any procedure that updates ECM or TCM programming:
a. Notify the owner that their ECM or TCM was found to have been tuned.
b. Notify the owner that any damage caused by the tuning of the ECM or TCM (including any adverse emissions consequences) will not be covered by Audi of America, Inc. warranties.
c. Obtain the owner's written consent (see attached Control Module Tuning form) for any requested repair - under warranty or outside warranty - that requires flashing that will automatically overwrite the tuned program.
4. Update the ECM.
a. If the vehicle has a tuned ECM or TCM, ensure the Control Module Tuning form has been filled out by the owner.
b. Check the software part number and software level in the Engine Control Module.
c. Prior to beginning the SVM process, insert a USB memory stick into the VAS 505X tester to capture the diagnostic log electronically.
d. For A4 (B7) always use the 6017B K-Line Adapter to ensure communication to all modules.
e. Update the Engine Control Module using the SVM action code as listed in the table below.
Note
Do not use a 6017 or 6017A while flashing. Doing so may result in complete control module failure.
Tip:
The SVM Process must be completed in its entirety so the database receives the update confirmation response. A warranty claim may not be reimbursed if there is no confirmation response to support the claim.
Tip:
The electric cooling fan may be activated during the ECM updating procedure.
For further SVM update instructions and troubleshooting, please refer to the SVM Operating Manual; ElsaWeb TSB 2011732.
Update the ECM
5. Perform basic settings for Intake Flap Motor V157 (channel 142).
6. If the basic settings for Intake Flap Motor V157 cannot be performed successfully, replace the Intake Flap Motor V157.
7. If one or more of the DTCs listed in the condition section are stored in the ECM data memory and the ECM SW was previously updated (the ECM already has the new SW version), replace the Intake Flap Motor V157 even if the basic settings can be performed successfully.
Warranty
When procedure applies to vehicles under warranty, use the table.
For ECM software update:
SAGA
For Intake Flap Motor V157 replacement:
SAGA
Required Parts and Tools
Additional Information
The following Technical Service Bulletin will be necessary to complete this procedure:
^ 2011732; Software Version Management (SVM) Operating Manual
All part and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Dept. and service manuals for the latest information.