Procedure 1

1. A/T CHECK INDICATOR LAMP DOES NOT COME ON

SYMPTOM
A/T CHECK indicator lamp does not come on for about 2 seconds when turning ignition switch to "ON".

DIAGNOSTIC PROCEDURE
1. CHECK TCM POWER SOURCE STEP 1
1. Turn ignition switch to "OFF" position.
2. Check the voltage between TCM connector terminals 9 and ground. Refer to "Wiring Diagram-AT-POWER".
Voltage: Battery voltage
OK or NG
OK >>GO TO 2.
NG >> Check the following items.
- Main harness for short or open between battery and the TCM connector terminals 9.
- Fuse
2. CHECK TCM POWER SOURCE STEP 2
1. Turn ignition switch to "ON" position. (Do not start engine.)
2. Check the voltage between TCM connector terminals 33,42 and ground. Refer to "Wiring Diagram-AT-POWER".
Voltage: Battery voltage
OK or NG
OK >> GO TO 3.
NG >> Check the following items.
- Main harness for short or open between ignition switch and TCM connector terminals 33, 42.
- Ignition switch and fuse.
3. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch to "OFF" position.
2. Disconnect the TCM connector.
3. Check continuity between terminals 5, 14, 24, 46 and ground. Refer to "Wiring Diagram-AT-POWER".
4. If OK, check the harness for short-circuit to ground or the power source.
OK or NG
OK >>GO TO 4.
NG >> Repair the short-circuit(s) in the harness or connector to ground or the power source.
4. CHECK A/T CHECK INDICATOR LAMP CIRCUIT
1. Turn ignition switch to "OFF" position.
2. Check the combination meter. Refer to "COMBINATION METERS".
OK or NG
OK >> GO TO 5.
NG >> Check the following item.
- Refer to "CAN COMMUNICATION".
5. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG?
OK >> INSPECTION END
NG >>
1. Repair or replace damaged parts.
2. Replace the transmission assembly.