P0871

Test 1:

Test 2-5:

Test 6-8:

Test 9-11:

SYMPTOM
P0871-OD PRESSURE SWITCH SENSE CIRCUIT

WHEN MONITORED
Whenever the engine is running.

SET CONDITION
The appropriate code is set if one of the pressure switches are open or closed at the wrong time in a given gear.

POSSIBLE CAUSES
- RELATED RELAY DTC'S PRESENT
- OD PRESSURE SWITCH SENSE CIRCUIT OPEN
- TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN
- OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
- OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
- OD PRESSURE SWITCH
- TRANSMISSION CONTROL MODULE
- INTERMITTENT WIRING AND CONNECTORS