Pinpoint Test 18

PINPOINT TEST 18: THE O/D OFF INDICATOR IS NEVER/ALWAYS ON

Step 1 - 4:

Normal Operation
The overdrive (O/D) off function is controlled by the O/D off switch When the O/D off switch is pressed, the O/D off switch provides a ground to the PCM. The O/D off status is then transmitted to the instrument cluster from the PCM over the CAN circuits.

Possible Causes
- PCM
- instrument cluster