Diesel Data: Automotive Repair

Related Diagnostic Procedures

CIRCUIT DESCRIPTION
Taillight relay will be "ON" by operating the tail light switch. The transistor which activates the tail light relay has two sorts: one activates by the tail light switch for fail safe and the other activates by CPU.




WIRING DIAGRAM

Step 1:




Step 2:




Step 3:




INSPECTION PROCEDURE

HINT: In case of using the LEXUS hand-held tester, start the inspection from step 1 and in case of not using the LEXUS hand-held tester, start from step 2.