LIN COMMUNICATION SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

Use the table below to help determine the cause of the problem symptom. 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
Rain Sensor LIN Communication Malfunction	LIN communication line	Click here
	Rain sensor	Click here
	Multiplex network front light ECU (Front controller)	Click here
	Harness or connector	Click here
Rear Heater Control Panel LIN Line Communication Malfunction	LIN communication line	Click here
	Rear power seat module switch	Click here
	Air conditioning amplifier	Click here
	Harness or connector	Click here
Seat Vibration System LIN Communication Malfunction	LIN communication line	Click here
	Seat vibrator switch	Click here
	Seat vibrator module	Click here
	Harness or connector	Click here
Driver Side Switch Module LIN Communication Malfunction	LIN communication line	Click here
	Outer mirror switch	Click here
	No. 1 console Switch	Click here
	Front seat climate control ECU LH	Click here
	Front seat climate control ECU RH	Click here
	Harness or connector	Click here
Rear Side Switch Module LIN Communication Malfunction	LIN communication line	Click here
	Rear power seat module switch	Click here
	Position control ECU LH	Click here
	Position control ECU RH	Click here
	Rear seat climate control ECU LH	Click here
	Rear seat climate control ECU RH	Click here
	Harness or connector	Click here