Operation CHARM: Car repair manuals for everyone.

"O/D OFF" Lamp Circuit Check

"O/D OFF" Lamp Circuit Check





Wiring Diagram

Circuit Description
Operation (ON/OFF) of the "O/D OFF" lamp is controlled by Transmission Control Module (TCM) and combination meter.
When ignition switch is turned ON and malfunction is not detected, TCM turns "O/D OFF" lamp ON only for 2 seconds to check bulb and terns it OFF. When communication circuit between TCM and combination meter break down (open or shot), "O/D OFF" lamp blinks only for 10 seconds.

Part 1 Of 3:




Part 2 Of 3:




Part 3 Of 3:





Troubleshooting