A/T Check Indicator Lamp Does Not Come On

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 CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to AT-92, "SELF-DIAGNOSTIC RESULT MODE", AT-102, "TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)".
Self-Diagnostic Result Mode
TCM Self-Diagnostic Procedure (No Tools)
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT-104, "DTC U1000 CAN COMMUNICATION LINE". U1000
NO >> GO TO 2.

2. CHECK A/T CHECK INDICATOR LAMP CIRCUIT
Check the combination meter. Refer to DI-5, "COMBINATION METERS". Combination Meters
OK or NG
OK >> GO TO 3
NG >> Repair or replace damaged parts.

3. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT-179, "MAIN POWER SUPPLY AND GROUND CIRCUIT".
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.