Door Mirror Heater Symptom Diagnosis (If Equipped)

NOTE:

Use of SUZUKI scan tool makes it easy to check whether a faulty condition is on the input side or output side of BCM. For checking procedure, refer to "Diagnosis Using Output Test Function of SUZUKI Scan Tool" under Scan Tool Data .
Check each part in the order from the top of the following list.

DOOR MIRROR HEATER SYMPTOM DIAGNOSIS TABLE

Condition	Possible Cause	Action
All door mirror heaters does not operate	Circuit fuse blown	Replace fuse and check for short circuit.
	Mirror heater relay faulty	Check mirror heater relay referring to DOOR MIRROR HEATER RELAY INSPECTION (IF EQUIPPED) .
	Wiring or grounding faulty	Repair circuit.
	HVAC control module faulty	Check HVAC control module referring to HVAC CONTROL MODULE AND ITS CIRCUITS INSPECTION (FOR VEHICLE WITHOUT A/C) .
	BCM faulty	Replace after making sure that none of above parts is faulty.
Only one door mirror heater does not operate	Door mirror heater faulty	Check door mirror heater referring to DOOR MIRROR HEATER INSPECTION (IF EQUIPPED) .
Only one door mirror heater does not operate	Wiring or grounding faulty	Repair circuit.