How To Proceed With Troubleshooting

Vehicle Brought to Workshop
Customer Problem Analysis (See CUSTOMER PROBLEM ANALYSIS CHECK )
Check multiplex communication system (See HOW TO PROCEED WITH TROUBLESHOOTING )
1. Check that the DTC output.
1. DTC outputs (Proceed to "MULTIPLEX COMMUNICATION SYSTEM - DIAGNOSIS ")
2. DTC does not output (Go to step 4)
Problem Symptom Confirmation (See PROBLEM SYMPTOMS TABLE )
(See CIRCUIT INSPECTION and COMPASS DOES NOT FUNCTION )
Repair or Replace
Confirmation Test
End