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System Trouble Shooting

NOTE: Body Electronic Control Unit (ECU) is connected to multiplex communication system. Ensure no faults exist in multiplex communication system before performing trouble shooting.

Trouble shooting is available for anti-theft, door warning lights, power windows and power door lock systems. Determine under what conditions the system does not operate or malfunctions and then perform specified test(s) listed under SYSTEM TESTS . If more than one circuit is to be inspected, perform tests in order listed. See appropriate TROUBLE SHOOTING SYMPTOMS table.

TROUBLE SHOOTING SYMPTOMS (ANTI-THEFT)

Problem Circuit To Be Inspected Go To Test No.
Key Unlock Warning System Does Not Operate
GAUGE Fuse 2 
Key Unlock Warning Switch Circuit 3 
Door Courtesy Switch Circuit 9 
TROUBLE SHOOTING SYMPTOMS (DOOR OPEN WARNING LIGHT)

Problem Circuit To Be Inspected Go To Test No.
Door Open Warning Light Does Not Illuminate
DOME Fuse (1)
Door Courtesy Switch Circuit 9 
Instrument Cluster Circuit (2)
(1) Check DOME fuse located in engine room junction block.
(2) See INSTRUMENT PANELS - CARS article.
TROUBLE SHOOTING SYMPTOMS (POWER WINDOW CONTROL SYSTEM)

Problem Circuit To Be Inspected Go To Test No.
Power Window Does Not Operate
POWER Fuse (1)
GAUGE Fuse 2 
Ignition Switch (2)
Power Window Control Switch Circuit 4 
One Touch Power Window System Does Not Operate
Power Window Control Switch Circuit 4 
Only One Window Does Not Move
Power Window Control Switch Circuit 4 
Power Window Motor Circuit (3)
Window Lock System Does Not Operate
Power Window Control Switch Circuit 4 
Illumination Does Not Operate
Power Window Control Switch Circuit 4 
(1) Check POWER fuse located in instrument panel junction block.
(2) See STEERING COLUMN SWITCHES - CARS article.
(3) See POWER WINDOWS - CARS article.
TROUBLE SHOOTING SYMPTOMS (POWER DOOR LOCK CONTROL SYSTEM)

Problem Circuit To Be Inspected Go To Test No.
Door Lock Control System Does Not Operate
DOOR Fuse 1 
GAUGE Fuse 2 
Malfunction In Door Lock/Unlock (Using Manual Switch)
Door Lock Control Switch Circuit 8 
Malfunction In Door Lock/Unlock (Using Key)
Door Unlock Detection Switch Circuit 6 
Fault In Driver's Side Door Key Lock & Unlock Switch (Unlock Function)
Door Unlock Detection Switch Circuit 6 
Fault In Key Confinement Prevention Operation
Door Unlock Detection Switch Circuit 6 
Door Courtesy Switch Circuit 9 
Door Lock Control Switch Circuit 8 
Only One Door Lock Does Not Operate
Door Lock Motor Circuit (1)
(1) See appropriate POWER DOOR LOCKS - CARS article.
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