Diagnosis Tips When Only Specific Function(s) is Defective

DIAGNOSIS TIPS WHEN ONLY SPECIFIC FUNCTION(S) IS DEFECTIVE
1. When an abnormality occurs only to the specific function, perform the hard switch check of service function audio check.
2. When the switch function is normal, check that the wiring harness connectors related to the specific function are engaged correctly. If a failure is found, repair the connectors and check the trouble symptom again.
3. When the wiring harness connectors are engaged correctly, check the wiring harness. If the wiring harness is in good condition, replace relevant components, which controls that function.