Code P091, Transaxle Range Switch Problem: Actions

PCM turns on SERVICE VEHICLE SOON light. PCM disables cruise control and will substitute gear status from transaxle pressure switch for transaxle range switch.

1. Checks PCM status light. AUTO should be displayed when gearshift is in Park or Neutral and OFF should be displayed if gearshift is in any other gear.
2. Checks transaxle range switch for open.
3. Checks circuit No. 451 for open.
4. Checks circuit No. 434 for open.
5. Checks if fault is still present.
6. Checks for shorted transaxle range switch.
7. Checks circuit No. 434 for short to ground.