P0751

Tests 1 - 3:

Tests 4 - 5:

SYMPTOM
P0751-O/D SWITCH PRESSED (LO) MORE THAN 5 MINUTES

WHEN MONITORED
The engine must have been running for a minimum of 10 seconds. The test for this code is executed every 440ms.

SET CONDITION
This code will set if the Overdrive OFF switch is held low for 5 minutes or more from the time of switch closure or ignition ON.

POSSIBLE CAUSES
- Intermittent O/D OFF switch
- O/D OFF switch sense circuit shorted to ground
- Overdrive OFF switch
- PCM - O/D OFF