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System Tests: Notes

WARNING: Deactivate air bag system before performing any service operation. See AIR BAG RESTRAINT SYSTEMS article. DO NOT apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.
NOTE: Verify power door lock system and wireless door lock system are operating properly before trouble shooting anti-theft system. See SYMPTOM DIAGNOSIS (DOOR LOCK CONTROL SYSTEM)  and SYMPTOM DIAGNOSIS (WIRELESS DOOR LOCK CONTROL SYSTEM)  tables. Anti-theft system will not operate properly if power door lock system or wireless door lock system are not operating properly. When anti-theft system is not operating properly, lower door windows and determine under what conditions system does not operate or malfunctions. See SYMPTOM DIAGNOSIS (ANTI-THEFT SYSTEM)  table.
SYMPTOM DIAGNOSIS (DOOR LOCK CONTROL SYSTEM)

Problem Inspect
Lock Or Unlock Is Not Operated With Door Lock Control Switch (1) Door Lock Control Switch Circuit
(1) Driver Door ECU
(1) Theft Deterrent ECU
 
Door Key Interlocked Function Does Not Operate (1) Door Key Lock & Unlock Switch Circuit
(1) Driver Door ECU
Theft Deterrent ECU
 
Key Confinement Prevention Function Does Not Operate (1) Key Unlock Warning Switch Circuit
(1) Door Courtesy Switch Circuit
(1) Door Unlock Detection Switch Circuit
(2) Driver Door ECU Circuit
(2) Theft Deterrent ECU
Either Door Does Not Work (1) Door Lock Motor Circuit
(2) Any Door ECU
Shift Lever Interlocked Door Function Does Not Operate (1) Park/Neutral Position Switch Circuit
(1) Door Lock Motor Circuit
(1) Any Door ECU
(2) Theft Deterrent ECU
(2) ECM
(1) Perform appropriate test under SYSTEM TESTS . If more than one test is listed, perform tests in order listed.
(2) Perform pin voltage checks under PIN VOLTAGE TESTS .
SYMPTOM DIAGNOSIS (WIRELESS DOOR LOCK CONTROL SYSTEM)

Problem Inspect
All Functions Of Door Lock Control System Do Not Operate (1) Transmitter
(1) Wireless Tuner Circuit
(1) Key Unlock Warning Switch Circuit
(1) Power Source Circuit
(2) Door Key Lock & Unlock Switch Circuit (2) Driver Door ECU (2) Theft Deterrent ECU
Lock Or Unlock Does Not Operate (1) Door Unlock Detection Switch Circuit
(1) Door Key Lock & Unlock Switch Circuit
(1) Power Source Circuit
(2) Any Door ECU
(2) Theft Deterrent ECU
Automatic Lock Function Operates Even If Any Door Is Opened Within 30 Seconds After Doors Are Unlocked (1) Door Courtesy Switch Circuit
(1) Any Door ECU
(1) Theft Deterrent ECU
Wireless Door Lock Operates But Buzzer Does Not Sound (1) Wireless Door Lock Buzzer Volume Circuit
(2) Wireless Door Lock Buzzer Circuit
(2) Door Unlock Detection Switch Circuit
(2) Any Door Or Theft Deterrent ECU
Buzzer Sounds But Door Lock Function Does Not Operate (2) Theft Deterrent ECU
Luggage Compartment Does Not Open (1) Luggage Compartment Door Opener Motor Circuit
(1) Power Source Circuit
(2) Luggage Compartment Junction Block ECU & Theft Deterrent ECU
(1) Perform appropriate test under SYSTEM TESTS . If more than one test is listed, perform tests in order listed.
(2) Perform pin voltage checks under PIN VOLTAGE TESTS .
SYMPTOM DIAGNOSIS (ANTI-THEFT SYSTEM)

Problem (1) Inspect
System Cannot Be Set Security Indicator Circuit
Key Unlock Warning Switch Circuit
Door Courtesy Switch Circuit
Door Unlock Detection Switch Circuit
Engine Hood Courtesy Switch Circuit
Luggage Compartment Door Courtesy Switch Circuit
Power Source Circuit
Door, Driver-Side, Luggage Compartment &/Or Theft-Deterrent ECU
Theft-Deterrent System Cannot Be Cleared Even If Ignition Switch Is On Key Unlock Warning Switch Circuit
Ignition Switch Circuit
Theft Deterrent ECU
Theft-Deterrent System Cannot Be Cleared Even If Door Is Unlocked With Key Door Key Lock & Unlock Switch Circuit
Door Unlock Detection Switch Circuit
Driver &/Or Theft-Deterrent ECU
Theft-Deterrent System Cannot Be Cleared Even If Luggage Compartment Door Is Opened With Key Luggage Compartment Door Courtesy Switch Circuit
Luggage Compartment Door Lock & Unlock Switch Circuit
Luggage Compartment &/Or Theft Deterrent ECU
Security Indicator Does Not Illuminate Security Indicator Circuit
Theft-Deterrent ECU
During Warning Condition, Headlights Do Not Operate Headlight Relay Circuit
Front Light Control &/Or Theft-Deterrent ECU
During Warning Condition, Taillights Do Not Operate Taillight Relay Circuit
Luggage Compartment &/Or Theft Deterrent ECU
During Warning Condition, Theft-Deterrent Horn Does Not Operate With Key Theft-Deterrent Horn Circuit
Theft-Deterrent ECU
During Warning Condition, Hazard Warning Light Does Not Operate Turn Signal Switch Circuit
Driver Side Junction Block ECU &/Or Theft-Deterrent ECU
During Warning Condition, Horn Does Not Operate Horn Circuit
Front Light Control &/Or Theft-Deterrent ECU
During Warning Condition, Warning Does Not Stop Even If Door Is Unlocked With Key Door Key Lock & Unlock Switch Circuit
Door Unlock Detection Switch Circuit
Driver &/Or Theft-Deterrent ECU
During Warning Condition, Warning Does Not Stop Even If Door Is Unlocked With Transmitter Transmitter
Door Unlock Detection Switch Circuit
Wireless Tuner Circuit
Theft Deterrent ECU
During Warning Condition, Warning Does Not Stop Even If Ignition Switch Is Turned To ACC Or ON Position Key Unlock Warning Switch Circuit
Ignition Switch Power Source Circuit
Theft Deterrent ECU
(1) Perform appropriate test under SYSTEM TESTS . If more than one test is listed, perform tests in order listed.