O/D Main Switch & O/D Off Indicator Light Circuit

O/D MAIN SWITCH & "O/D OFF" INDICATOR LIGHT CIRCUIT

CIRCUIT DESCRIPTION
The O/D main switch contacts go OFF when the switch is pushed IN and come ON when it is pushed OUT. In O/D main switch OFF position, the "O/D OFF" indicator lights up, and the ECM prohibits shifting into overdrive. The ECM also causes the "0/D OFF" indicator light to blink when a malfunction is detected. In this case, connecting the terminals in the DLC1 can display the DTC.

WIRING DIAGRAM

(*) O/D Main SwitchContacts go OFF with switch pushed IN.Contacts go ON with switch pushed OUT.:

INSPECTION PROCEDURE

"O/D OFF" Indicator Light Does Not Light Up.

















"O/D OFF" Indicator Light Remains ON









"O/D OFF" Indicator Light Blinks
Perform diagnostic trouble code check.