Symptom Related Diagnostic Procedures

Problem Symptoms Table - Headlight And Taillight System (Part 1):

Problem Symptoms Table - Headlight And Taillight System (Part 2):

HEADLIGHT AND TAILLIGHT SYSTEM:
The table will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty.

This system uses the multiplex communication system, so check diagnosis system of the multiplex communication system before you proceed with troubleshooting.

HINT: To inspect the bulb and light control ECU, replace them with the ones working normally and judge whether they work normally or not.