Transmission Control Switch: TCM
DTC DESCRIPTION - TCM
| DTC | Description | Action |
|---|---|---|
| P1780 | Transmission Control Switch (O/D Cancel) Circuit Out Of Self Test Range | RUN the KOER self-test. If the DTC returns, GO to PINPOINT TEST C for Grade Assist switch or GO to PINPOINT TEST D for Tow Haul switch. |