P0871

SYMPTOM
P0871 - OD PRESSURE SWITCH SENSE CIRCUIT

WHEN MONITORED
Whenever the engine is running.

SET CONDITION
The appropriate DTC is set if one of the Pressure Switches are open or closed at the wrong time in a given gear.

POSSIBLE CAUSES
- TRANSMISSION RELAY DTCS PRESENT
- INTERMITTENT WIRING AND CONNECTORS
- TRANSMISSION RELAY OUTPUT CIRCUIT OPEN
- O/D PRESSURE SWITCH SENSE CIRCUIT OPEN
- O/D PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
- O/D PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
- O/D PRESSURE SWITCH INOPERATIVE
- TCM - O/D PRESSURE SWITCH