Keyless Entry System Symptom Diagnosis (If Equipped)

WARNING: This page is about a different car, the 2008 Suzuki Grand Vitara, 2007 Suzuki Grand Vitara, and 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Confirm that power door lock system is in good condition before referring to the following possible causes.
Check each part in the order from the top of the following list.

KEYLESS ENTRY SYSTEM SYMPTOM DIAGNOSIS

Condition	Possible Cause	Action
All door cannot be locked/unlocked by only keyless entry transmitter	Transmitter battery dead	Replace battery referring to REPLACEMENT OF TRANSMITTER BATTERY .
	Door switch faulty	Check door switch referring to DOOR SWITCH (FRONT/REAR/REAR END DOOR) INSPECTION .
	Transmitter faulty	Replace transmitter .
	Key remainder switch in ignition switch faulty	Check ignition switch referring to IGNITION SWITCH INSPECTION .
	Wiring or grounding faulty	Repair circuit .
	Keyless entry receiver faulty	Check keyless entry receiver referring to KEYLESS ENTRY RECEIVER AND ITS CIRCUIT INSPECTION .
	BCM faulty	Replace after making sure that none of above parts is faulty .
Turn signal lights cannot be flashed when doors are locked/unlocked by keyless entry transmitter	Turn signal and hazard warning relay faulty	Check turn signal and hazard warning relay. Refer to EXTERIOR LIGHTS .
	Wiring or grounding faulty	Repair circuit .
	BCM faulty	Replace after making sure that none of above parts is faulty .
Interior light does not light when doors are unlocked by keyless entry transmitter	Wiring or grounding faulty	Repair circuit .
	BCM faulty	Replace after making sure that none of above parts is faulty .
Hazard warning lights do not light when doors are locked/unlocked by keyless entry transmitter	Turn signal and hazard warning relay faulty	Check turn signal and hazard warning relay. Refer to EXTERIOR LIGHTS .
	Wiring or grounding faulty	Repair circuit .
	BCM faulty	Replace after making sure that none of above parts is faulty .
Transmitter code cannot be programmed to BCM	Door switch faulty	Check door switch referring to DOOR SWITCH (FRONT/REAR/REAR END DOOR) INSPECTION .
	Keyless entry receiver faulty	Check keyless entry receiver referring to KEYLESS ENTRY RECEIVER AND ITS CIRCUIT INSPECTION .
	Key reminder switch in ignition switch faulty	Check ignition switch.
	Wiring or grounding faulty	Repair circuit .
	BCM faulty	Replace after making sure that none of above parts is faulty .