Workshop Procedure

Before reprogramming the Transmission Control Module (TCM) ensure that the following requirements are met:

^ The Portable Test Unit (PTU) is docked on the WDS base station, with the base station plugged in to line voltage.

^ Vehicle battery is charged to a minimum of 12.5 volts.

^ All Diagnostic Trouble Codes (DTCs) are cleared.

^ Transmission oil temperature is within the recommended value of between minus 55 degrees Celsius and plus 80 degrees Celsius.

1. Open door.

2. Ensure ignition is switched off, hand brake is on and selector lever is in Park (P).

3. Position WDS alongside the vehicle, switch WDS on and allow software to load.

Note:
WDS must be loaded with the latest issue of software (WDS 29 or later.)

Caution:
Never use software prior to WDS 29 to reprogram the TCM since this will return the calibration to an earlier level.

4. Connect PTU to vehicle using diagnostic cable.

5. Enter the VIN and navigate to the vehicle configuration main menu.

6. From the vehicle configuration main menu, navigate to and run the Re-configure existing TCM application.

Note:
As part of the reprogram process, a pop up screen stating select the access route you require will be displayed, at this point the technician must select 'normal access'.

Note:
If the message 'The vehicle does not require reprogramming - the latest software is installed. Do you wish to continue?' appears, the dealer MUST SELECT NO. This message indicates that the vehicle has undergone a previous software update and does not require reprogramming. No further action is required.

7. After successful reprogramming of TCM, switch off, disconnect, and return the WDS to the original location.

8. Close door.