Problem Symptoms Table

If a normal system code is displayed during the DTC check, but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting article.

HINT:

The following is the troubleshooting procedure for the wireless door lock control of a vehicle without the smart key system.
For the troubleshooting procedure for the wireless door lock control of a vehicle with the smart key system, refer to SMART KEY SYSTEM .
Inspect the fuse and relay before investigating the suspected areas shown in the table below.
Inspect each malfunction circuit in numerical order for its corresponding symptom.

WIRELESS DOOR LOCK CONTROL SYSTEM:

DOOR LOCK CONTROL SYSTEM REFERENCE CHART

Symptom	Suspected area	See
The wireless door lock control system does not operate.	1. Transmitter battery	TRANSMITTER BATTERY
	2. Enter the self-diagnostic mode. If the recognition code does not match the key code, check that the key code can be registered in the rewrite or add mode of the recognition code registration.	DTC CHECK / CLEAR
	3. Wireless door lock receiver circuit	DTC CHECK / CLEAR
	4. Power source circuit	POWER SOURCE CIRCUIT
	5. IG signal circuit	IG SIGNAL CIRCUIT
	6. Key unlock warning switch circuit	UNLOCK WARNING SWITCH CIRCUIT
	7. Front door courtesy light switch circuit	FRONT DOOR COURTESY SWITCH CIRCUIT
	8. Rear door courtesy light switch circuit	REAR DOOR COURTESY SWITCH CIRCUIT
	9. Luggage compartment door courtesy light switch circuit	LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT
	10. If the symptoms still occur after the above areas are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The panic alarm function only does not operate.	1. Transmitter battery	TRANSMITTER BATTERY
The panic alarm function only does not operate.	2. If the symptoms still occur after the above area is inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The panic alarm function does not operate (Vehicle horn).	1. Power source circuit	POWER SOURCE CIRCUIT
	2. IG signal circuit	IG SIGNAL CIRCUIT
	3. Horn circuit	HORN CIRCUIT
	4. If the symptoms still occur after the above circuits are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The panic alarm function does not operate (Security horn).	1. Power source circuit	POWER SOURCE CIRCUIT
	2. IG signal circuit	IG SIGNAL CIRCUIT
	3. Theft deterrent system	THEFT DETERRENT SYSTEM
	4. If the symptoms still occur after the above areas are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The panic alarm function does not operate (Hazard warning light).	1. Power source circuit	POWER SOURCE CIRCUIT
	2. IG signal circuit	IG SIGNAL CIRCUIT
	3. Hazard warning light circuit	HAZARD WARNING LIGHT CIRCUIT
	4. If the symptoms still occur after the above circuits are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The panic alarm function does not operate (Headlight or taillight).	1. Power source circuit	POWER SOURCE CIRCUIT
	2. IG signal circuit	IG SIGNAL CIRCUIT
	3. Lighting system	LIGHTING SYSTEM
	4. If the symptoms still occur after the above areas are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The automatic lock function does not operate.	1. Power source circuit	POWER SOURCE CIRCUIT
	2. IG signal circuit	IG SIGNAL CIRCUIT
	3. Key unlock warning switch circuit	UNLOCK WARNING SWITCH CIRCUIT
	4. Front door courtesy light switch circuit	FRONT DOOR COURTESY SWITCH CIRCUIT
	5. Rear door courtesy light switch circuit	REAR DOOR COURTESY SWITCH CIRCUIT
	6. Luggage compartment door courtesy light switch circuit	LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT
	7. If the symptoms still occur after the above circuits are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The door ajar warning function only does not operate.	1. Power source circuit	POWER SOURCE CIRCUIT
	2. IG signal circuit	IG SIGNAL CIRCUIT
	3. Key unlock warning switch circuit	UNLOCK WARNING SWITCH CIRCUIT
	4. Front door courtesy light switch circuit	FRONT DOOR COURTESY SWITCH CIRCUIT
	5. Rear door courtesy light switch circuit	REAR DOOR COURTESY SWITCH CIRCUIT
	6. Luggage compartment door courtesy light switch circuit	LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT
	7. If the symptoms still occur after the above circuits are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The illuminated entry function only does not operate.	1. Lighting system	OPERATION CHECK
The illuminated entry function only does not operate.	2. If the symptoms still occur after the above area is inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The answer back function does not operate (Wireless door lock buzzer).	1. Power source circuit	POWER SOURCE CIRCUIT
	2. Wireless door lock buzzer circuit	WIRELESS DOOR LOCK BUZZER CIRCUIT
	3. If the symptoms still occur after the above circuits are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The answer back function does not operate (Hazard warning light).	1. Power source circuit	POWER SOURCE CIRCUIT
	2. Hazard warning light circuit	HAZARD WARNING LIGHT CIRCUIT
	3. If the symptoms still occur after the above circuits are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-
The wireless trunk opener function only does not operate.	1. Power source circuit	POWER SOURCE CIRCUIT
	2. Key unlock warning switch circuit	UNLOCK WARNING SWITCH CIRCUIT
	3. Luggage compartment door courtesy light switch circuit	LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT
	4. Luggage compartment door opener motor circuit	LUGGAGE COMPARTMENT DOOR OPENER CIRCUIT
	5. If the symptoms still occur after the above circuits are inspected and proved to be normal, replace the instrument panel J/B (body ECU).	-