Overdrive Indicator Lamp: Testing and Inspection

O/D OFF INDICATOR LIGHT INSPECTION [LA4A-EL]
Inspection Of Operation
1. Turn the ignition switch from OFF to ON.

NOTE: The O/D OFF indicator light will light if a malfunction exists in any of the EC-AT system components.

2. Verify that the O/D OFF indicator light is not illuminated.
3. Depress the switch and verify that the O/D OFF indicator illuminates.
4. If the O/D OFF switch function is not as specified, after checking the O/D OFF switch, check the terminal voltage of the O/D OFF indicator light.








Inspection Of Voltage
1. Remove the instrument cluster.
2. Turn the ignition switch to ON.
3. Measure voltage between terminal 3N and a ground.





Inspection Of Continuity
1. Disconnect the negative battery cable.
2. Disconnect the instrument cluster connector.
3. Check continuity between terminal 3C and powertrain control module terminal 79.
4. If not correct, check the wiring harness (instrument cluster-powertrain control module).
5. If correct, go to the next stop.





6. Check continuity between terminals 3N and 3C.
7. If not correct, replace the instrument cluster or bulb.
8. Install the instrument cluster.
9. Connect the negative battery cable.