Diagnostic Procedure

Erase (1st trip) DTCs. Refer to "HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION "

1. GO TO 2.

Check ground terminals for corroding or loose connection.

Refer to "HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT ", "CIRCUIT INSPECTION", "Ground Inspection".

OK or NG 

1. OK: GO TO 3.
2. NG: Repair or replace.

Perform "HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT ", "INCIDENT SIMULATION TESTS ".

OK or NG 

1. OK: GO TO 4.
2. NG: Repair or replace.

Refer to "HOW TO CHECK TERMINAL ", "HOW TO PROBE CONNECTORS ", "HOW TO CHECK ENLARGED CONTACT SPRING OF TERMINAL ".

OK or NG 

1. OK: INSPECTION END
2. NG: Repair or replace connector.