Control Module: Testing and Inspection

Neutral Position Learning





Special Tool(s)

NOTE: When installing a new transmission control module, the initialized learned values will need to be carried out.

1. With the vehicle in NEUTRAL, position it on a hoist.
2. Install the diagnostic tool.
3. Turn the ignition ON.
4. The diagnostic tool should indicate NEUTRAL.
^ If the diagnostic tool does not indicate NEUTRAL, carry out Transmission Control Module (TCM) adjustment.
5. If NEUTRAL is indicated on the diagnostic tool, move the shift lever to PARK and turn the ignition OFF.
6. Turn the ignition ON and move the shift lever from PARK to DRIVE.
^ The diagnostic tool should indicate each PRNDL position.

7. If the diagnostic display indicates each PRNDL position, check for any DTC codes.
8. If the diagnostic display does not indicate each PRNDL position, carry out Transmission Control Module (TCM) Initial Learning.