P0871

Symptom:
P0871-OD PRESSURE SWITCH SENSE CIRCUIT

Test 1:

Test 2-6:

Test 7-9:

Test 10-11:

When Monitored:
Whenever the engine is running.

Set Condition:
The DTC 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
- OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
- TRANSMISSION RELAY OUTPUT CIRCUIT OPEN
- OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
- OD PRESSURE SWITCH
- POWERTRAIN CONTROL MODULE
- INTERMITTENT WIRING AND CONNECTORS