Pinpoint Test D : TCS (Transmission Control Switch): Notes
Refer to SHIFT INTERLOCK for schematic and connector information.
Normal Operation and Fault Conditions
The TCS is a momentary contact switch located on the selector lever. Pressing the TCS will engage or disengage the O/D function of the transmission. When the O/D is disengaged, the O/D icon illuminates OFF on the IPC. Each time the ignition switch is cycled, the transmission automatically provides O/D operation regardless of TCS position the last time the engine was running.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P1780 | TCS Circuit Out Of Self-Test Range | The TCS or circuit failed during the self-test. |
Possible Sources
- Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
- TCS
- TCM