P0871

Symptom:
P0871-OD PRESSURE SWITCH SENSE CIRCUIT

Test 1:

Test 2-6:

Test 7-10:

Test 11:

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 CONTROL RELAY DTCS PRESENT
- TRANSMISSION CONTROL 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
- TRANSMISSION CONTROL MODULE
- INTERMITTENT WIRING AND CONNECTORS