System Tests: Notes

Symptom & Description		Perform Test No.
Lock Or Unlock Cannot Be Operated With Door Lock Control Switch
Driver's Passenger's Or Door ECU		(1)
Body Control ECU		(2)
Door Key Link Function Does Not Operate
Driver's Or Passenger's Door ECU		(1)
Body Control ECU		(2)
Key Confinement Prevention Function Does Not Operate
Key Unlock Warning Switch Circuit		15
Body Control ECU		(2)
(1) See appropriate wiring diagram in POWER DOOR LOCKS, TRUNK LID & FUEL DOOR RELEASE article. (2) Perform BODY CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TESTS.

Symptom & Description		Perform Test No.
Wireless Door Lock Control System Does Not Operate (1)
Key Unlock Warning Switch Circuit		15
Wireless Door Lock Tuner Circuit		38
Wireless Door Lock Transmitter		39
Body Control ECU		(2)
Lock Or Unlock Function Does Not Operate
Driver's Door Unlock Detection Switch Circuit		7
Left Rear Door Unlock Detection Switch Circuit		18
Passenger's Door Unlock Detection Switch Circuit		25
Right Rear Door Unlock Detection Switch Circuit		33
Driver's Or Passenger's Door ECU		(3)
Left Or Right Rear Door ECU		(3)
Body Control ECU		(2)
Auto Lock Function Operates When Any Door Is Opened Within 30 Seconds After Unlocking All Doors With Wireless Door Lock Control System
Driver's Door Courtesy Light & Courtesy Switch Circuit		4
Left Rear Door Courtesy Light & Courtesy Switch Circuit		16
Passenger's Door Courtesy Light & Courtesy Switch Circuit		21
Right Rear Door Courtesy Light & Courtesy Switch Circuit		31
Driver's Or Passenger's Door ECU		(3)
Left Or Right Rear Door ECU		(3)
Body Control ECU		(2)
Wireless Door Lock Operates, But Buzzer Does Not Sound
Wireless Door Lock Buzzer Circuit		38
Body Control ECU		(2)
Buzzer Sounds, But Wireless Door Lock Function Does Not Operate (1)
Body Control ECU		(2)
(1) Check transmitter operation. (2) Perform BODY CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TESTS. (3) See appropriate wiring diagram in POWER DOOR LOCKS, TRUNK LID & FUEL DOOR RELEASE article.

Symptom & Description		Perform Test No.
System Cannot Be Set
Anti-Theft Indicator Circuit		2
Back Door Courtesy Switch Circuit		3
Driver's Door Courtesy Light & Courtesy Switch Circuit		4
Driver's Door Unlock Detection Switch Circuit		7
Engine Hood Courtesy Switch Circuit		10
Key Unlock Warning Switch Circuit		15
Left Rear Door Courtesy Light & Courtesy Switch Circuit		16
Left Rear Door Unlock Detection Switch Circuit		18
Passenger's Door Courtesy Light & Courtesy Switch Circuit		21
Passenger's Door Unlock Detection Switch Circuit		25
Right Rear Door Courtesy Light & Courtesy Switch Circuit		31
Right Rear Door Unlock Detection Switch Circuit		33
Driver's Or Passenger's Door ECU		(1)
Left Or Right Rear Door ECU		(1)
Body Control ECU		(2)
System Cannot Be Canceled When Ignition Is In ON Position
Key Unlock Warning Switch Circuit		15
Ignition Switch Circuit		(3)
Body Control ECU		(2)
System Does Not Cancel When Back Door Is Opened With Key
Back Door Key Lock & Unlock Switch Circuit		3
Body Control ECU		(2)
Headlights Do Not Operate Properly With System
Headlight Relay Circuit		13
Body Control ECU		(2)
Taillights Do Not Operate Properly With System
Taillight Relay Circuit		36
Body Control ECU		(2)
Anti-Theft Horn & Standard Horn Does Not Sound
Anti-Theft Horn Circuit		1
Standard Horn Circuit		34
Body Control ECU		(2)
Hazards Do Not Operate Properly With System
Hazard Switch Circuit		11
Body Control ECU		(2)
During Warning Condition, System Cannot Be Canceled By Unlocking Door With Key
Driver's Door Key Lock & Unlock Switch Circuit		5
Passenger's Door Key Lock & Unlock Switch Circuit		22
Driver's Or Passenger's Door ECU		(1)
Body Control ECU		(2)
During Warning Condition, System Cannot Be Canceled By Unlocking Door With Transmitter
Wireless Door Lock Transmitter		(4)
Wireless Door Lock Tuner Circuit		39
Body Control ECU		(2)
During Warning Condition, System Cannot Be Canceled By Turning Ignition To ACC Or ON Position Using Key
Ignition Switch Circuit		(3)
Key Unlock Warning Switch Circuit		15
Body Control ECU		(2)
Horns Sounded For More Than 60 Seconds
Body Control ECU		(2)
(1) See appropriate wiring diagram in POWER DOOR LOCKS, TRUNK LID & FUEL DOOR RELEASE article. (2) Perform BODY CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TESTS. (3) Check ignition switch. See STEERING COLUMN SWITCHES article. (4) Check transmitter operation.

Symptom & Description		Perform Test No.
Rear Wipers Do Not Operate
Rear Wiper Motor Circuit		28
Wiper/Washer Switch Circuit		37
Body Control ECU		(1)
Rear Washers Do Not Operate
Rear Washer Motor Circuit		28
Wiper/Washer Switch Circuit		37
Wiring Harness		(2)
(1) Perform BODY CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TESTS. (2) Check wiring harness for opens or shorts. See WIRING DIAGRAMS in appropriate WIPER/WASHER SYSTEMS article. Repair or replace as necessary, and retest system operation.

Symptom & Description		Perform Test No.
Automatic Light Control Does Not Operate
Headlight Control Switch Circuit		12
Light Sensor Circuit		19
Body Control ECU		(1)
Automatic Turn Off Does Not Operate
Driver's Door Courtesy Switch Circuit		4
Ignition Switch		(2)
Driver's Door ECU		(1)
Body Control ECU		(3)
(1) See appropriate wiring diagram in POWER DOOR LOCKS, TRUNK LID & FUEL DOOR RELEASE article. (2) Check ignition switch. See STEERING COLUMN SWITCHES article. (3) Perform BODY CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TESTS.

Symptom & Description		Perform Test No.
Illuminated Entry Does Not Operate Properly
Illumination Circuit		14
Body Control ECU		(1)
(1) Perform BODY CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TESTS.

Symptom & Description		Perform Test No.
A/C Control Panel & Multi Display Does Not Deteriorate
Rheostat Light Control Circuit		30
Body Control ECU		(1)
Body Control ECU Does Not Operate
ECU Power Source Circuit		9
Body Control ECU		(1)
(1) Perform BODY CONTROL ECU PIN VOLTAGE TESTS  under COMPONENT TESTS.