How To Proceed With Troubleshooting

Vehicle Brought to Workshop
Customer Problem Analysis (See CUSTOMER PROBLEM ANALYSIS CHECK )
Check multiplex communication system (See MULTIPLEX COMMUNICATION SYSTEM )
1. Check the DTC output.
1. DTC outputs (Proceed to MULTIPLEX COMMUNICATION SYSTEM - DIAGNOSTICS
2. DTC does not output (Go to step 4 )
Problem Symptom Confirmation (See PROBLEM SYMPTOMS TABLE )
Circuit Inspection (See MALFUNCTION IN SPEEDOMETER - SEAT BELT WARNING LAMP FOR DRIVER'S SEAT DOES NOT OPERATE )
Repair or Replace
Confirmation Test
End