Toyota Camry Manual page 309

AX2–122
OD Main Switch & OD 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 to overdrive.
The ECM also causes the O/D OFF indicator light to blink when a malfunction is detected. In this case, con–
necting the OBD II scan tool or TOYOTA hand–held tester to the DLC3 can display the diagnostic trouble
code.
DIAGNOSTIC CHART
O/D OFF indicator light does not light up.
Check operation of O/D main switch.
Check voltage between terminal OD2 of
ECM connector and body ground.
Check. harness and connector between
O/D off indicator light and ECM.
Check and replace ECM.
Check O/D main switch.
Check and replace combination meter.
(See combination meter troubleshooting)
AUTOMATIC TRANSAXLE – TROUBLESHOOTING
Go to step
Proceed to next circuit inspection
shown on matrix chart (See page
Repair or replace harness or con–
nector.
Replace O/D main switch.
AX–81 ).