Voice Activation Module: Service and Repair

WM 917919 Removing and installing voice module for PCM

Tools






Preliminary work

Preliminary work for voice module

Information

- If the control unit is replaced, the control unit must be coded using the PIWIS Tester 9718. This adapts the control unit to the vehicle and equipment.

- Before the control unit is removed and replaced, a read-out of the vehicle data should be obtained (if possible) using the PIWIS Tester 9718.

- During coding, it is essential to guarantee the power supply for the PIWIS Tester 9718. A battery charger with a current rating of at least 40 A must be connected to the vehicle battery.

- The PIWIS Tester 9718 instructions take precedence, and in the event of a discrepancy these are the instructions that must be followed. Deviations may occur with later software versions. The description is based on the Tester software release 17.02.

- The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS Tester 9718.

1. PIWIS Tester 9718 must be connected to the vehicle before starting it. Switch on the ignition. >> to continue.
2. Select vehicle type and press >>.
3. Select the PCM control unit and press >> to continue.
4. Select the VOCS menu and press >>.
5. Control unit replacement must then be selected. Press >> to continue.
6. Read out coding must then be selected. Press >> to continue.
7. The PIWIS Tester 9718 screen displays the message "Coding read-out complete". Press >> to continue.
8. Switch off ignition, -> 911019 Removing and installing display and operator control unit (PCM2) - section on "Removing" Service and Repair

Removing voice module for PCM

1. Unclip cover on the rear of the PCM at the top, pivot cover down and disengage it.





Removing cover

2. Remove voice module from the PCM.





Removing voice module

Installing voice module for PCM

1. If you are installing a new voice module, detach the cap for the electric plug connection and carefully slide the voice module as far as it will go into the PCM.





Inserting voice module into PCM

2. Engage cap on the PCM, fold it up and clip it in on the PCM housing.





Clipping in cover on PCM

Subsequent work

Subsequent work for voice module

1. -> 911019 Removing and installing display and operator control unit (PCM2) - section on "Installing" Service and Repair
2. Switch on ignition. Once the control unit has been replaced, the codings that were read out are loaded when the Write coding menu is selected. Press >> to continue.
3. Select the Coding menu and press >>. Code the number of microphones, if required.
4. Check the function of the voice recognition system. See operating instructions.
5. Fault memory must then be read out.
6. PIWIS Tester 9718 must now be disconnected from the vehicle.