Campaign - Reprogram Transmission Control Module: Overview
March 2004Subject: 2002 Model Year Audi A4 1.8T Automatic Vehicles
2002 Model Year Audi A4 and A6 3.0L Automatic Vehicles
Reprogramming of Transmission Control Module (TCM)
This is to inform you of the initiation of an emission service action involving some 2002 model year Audi A4 1.8T automatic transmission vehicles and 2002 model year Audi A4 and A6 3.0L automatic transmission vehicles.
CAMPAIGN WORK PROCEDURE
Objective:
This procedure describes, "Update - Programming" (flashing) the transmission control module (TCM) in 2002 Audi A4 and A6 vehicles with a 5 speed tiptronic automatic transmission.
Special Tools and Equipment:
- VAS 5051 or VAS 5052 with the basic CD V.03.00 and the brand CD V.03.30 or higher are recommended
- CD Rom AVW18300204
IMPORTANT:
- Battery MUST have a minimum no-load voltage of 12.5V (failure to maintain 12.5V to 14.0V during the update programming can lead to control module failure) (it is advised to use the IM 940 battery charger in the manual mode to maintain battery voltage).
- VAS 5051: connected to the vehicle and to 110V AC power supply at all times during the procedure.
- VAS 5052: connected to the vehicle with battery voltage requirements met.
- Stored diagnostic trouble codes (DTCs) in any control unit must all be erased prior to starting the procedure.
CAUTION: The VAS 5051 or VAS 5052 must always be connected to an approved power supply at the approved voltages. Under no circumstance should the power supply be interrupted or should the diagnostic connector get disconnected during the updating procedure. Any appliances with high electromagnetic radiation (i.e. mobile telephones and cordless telephones) in and near the vehicle must be switched OFF
- Switch ignition to "ON" position
- Make certain all electrical consumers (lights, radio, etc.) are switched "OFF"
- Connect VAS 5051 or VAS5052 to the vehicle
WARNING: DO NOT USE THE VAS 6017A ADAPTOR WHEN DOING THE UPDATE PROGRAMMING (FLASHING). CONTROL UNIT CAN BE DAMAGED.
- Connect power supplies as required
- Switch VAS 5051/5052 "ON" and insert "Update Programming" CD into CD drive as soon as the start screen appears
IMPORTANT: The CD Rom should be in the VAS 5051 or VAS 5052 when the scan tool is started up or inserted when the start screen is showing. Check the light on the CD drive. It must not be flashing when going to the "Select Vehicle System" screen or the CD Rom will not be recognized.
NOTE: You must return to the start screen before starting a new "Update - Programming" session, otherwise the "Update - Programming" CD will not be recognized by the VAS 5051 or VAS 5052.
- Select "Vehicle Self Diagnosis" mode -arrow-
- Select vehicle system "02 - Gearbox electronics" -arrow-
NOTE: Program now checks software level.
- If software level of TCM does not require updating, the "Update - Programming" option will not appear, no further work required, disconnect VAS 5051/5052
- If software level of TCM requires updating (flashing), the "Update - Programming" option -arrow 1- will appear, proceed to next step
- Prior to flashing the TCM all DTCs MUST be erased
IMPORTANT: Failure to erase ALL DTCs may cause the "Update - Programming" procedure to fail.
- Select Diagnosis function 06 "End Output" -arrow 2-
- Select Diagnosis function "Collection services" -arrow-
- Select "Check DTC memory - complete system" -arrow- which will interrogate all fault memories
IMPORTANT: If the vehicle has a MIL light on, any DTC checking, diagnosis or repairs are not part of or covered under this recall.
NOTE: If DTCs are found, print and erase all DTCs.
- When "Function completed" -arrow 1- comes up, select the (<) left arrow return button twice -arrow 2-
- Select "02 - Gearbox electronics"
- Select "Update - Programming" option at bottom of the screen -arrow-
CAUTION: ONCE "UPDATE - PROGRAMMING" FUNCTION HAS STARTED, SWITCHING THE IGNITION OFF OR DISCONNECTING THE DIAGNOSTIC CONNECTOR MAY COMPLETELY DESTROY THE TCM.
- After selecting the "Update - Programming" function, the new program version xxxx is indicated along with the approximate amount of time to do the updating
- Select the (>) right arrow continue button -arrow- to start the programming
IMPORTANT: Do not turn on any electrical consumer that would cause a voltage drop.
- This screen comes up and shows the percentage of progress for "Update - Programming"
- If, during the "Update - Programming", a fault message is displayed, the control unit could be damaged and cannot be flashed:
- Confirm that the VAS 5051 or VAS 5052 diagnostic tool power supply is adequate and that all appliances with high electromagnetic radiation (i.e. mobile telephones) are switched OFF
- The "Update - Programming" process must then be started from the beginning using the "Repeat" button -arrow-
IMPORTANT: Under no circumstance should the "Cancel" button be selected.
- This screen comes up when "Update - Programming" is complete
NOTE: The old software level is still displayed -arrows-. The new software level is not displayed until the process is complete and fault memories have been erased.
- Select "Print" then select "Screen"
- The VAS 5051 will print to printer immediately
- The VAS 5052 will hold the print until the process is complete and then you may take the tester to the printer for printing the screen
- Attach a copy of the print to the repair order
- Select the (>) right arrow continue button -arrow 2-
NOTE: Once the "Update - Programming" is complete, the control module must be re-initialized.
- The tester requests you to switch the ignition OFF
- After waiting 20 seconds, switch the ignition switch to the "on" position
IMPORTANT: Wait at least 20 seconds before switching the ignition back to the "ON" position (failure to wait at least 20 seconds may damage the TCM)
NOTE: DTCs will be stored in various Control Modules during the "Update - Programming". All DTCs must be erased.
- Select the (>) continue button -arrow- to erase all fault memories
- When DTCs have been erased, this screen or a similar screen appears
- Function ended appears near the bottom of the screen -arrow 1-
- Select the (<) return button -arrow 2- to finish the updating
- Updated software level will be shown -arrow-
- "Update - Programming" CD can now be removed from the VAS 5051 or VAS5052 diagnostic tool
- Print screen to verify TCM update software level
- The VAS 5051 will print to printer immediately
- The VAS 5052 will hold the print until the process is complete and then you may take the tester to the printer for printing the screen
- Attach a copy of the prints to the repair order
- Select "Go To" then select "Exit"
- Use VAS 5051 or VAS 5052 and set engine readiness code
- Work is completed