Table A-1: Lamp Doesn't Come "on" at Ignition Switch on

TABLE A-1 "O/D OFF" LAMP CIRCUIT CHECK (LAMP DOES NOT COME "ON" AT IGNITION SWITCH ON (BUT ENGINE AT STOP)





WIRING DIAGRAM

CIRCUIT DESCRIPTION
Operation (ON/OFF) of the "O/D OFF" lamp is controlled by Transmission Control Module (TCM).
When the ignition switch is turned ON with the O/D cut switch OFF (switch button is pushed and malfunction is not detected, TCM turns the "O/D OFF lamp ON only for 2 sec. to check the bulb and turns it OFF.
When ignition switch is turned ON regardless of engine running or not and malfunction is detected, the "O/D OFF" lamp is blinked by TCM to warm the driver of such occurrence of trouble.
When A/T diagnosis switch terminal is grounded by using service wire for DTC check, the "O/D OFF" lamp indicates DTC by blinking pattern.





TROUBLESHOOTING