P0871

Test 1:

Test 2 - 6:

Test 7 - 9:

Test 10 - 11:

SYMPTOM
P0871-OD PRESSURE SWITCH SENSE CIRCUIT

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