LIN COMMUNICATION SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

LIN Communication System
Symptom	Suspected Area	See page
All functions of the front A/C system do not operate	LIN communication line	Click here
	IG power source circuit	Click here
	Back-up power source circuit	Click here
	Air conditioning control panel circuit	Click here
	A/C amplifier	Click here
All functions of the rear A/C system do not operate	LIN communication line	Click here
	IG power source circuit	Click here
	Back-up power source circuit	Click here
	Rear air conditioning control panel circuit	Click here
	A/C amplifier	Click here