Diagnosis Procedure 9

VEHICLE SECURITY (THEFT WARNING) SYSTEM


Diagnosis Procedure 9

TRUNK KEY CYLINDER SWITCH CHECK (SEDAN)
1.CHECK TRUNK KEY CYLINDER SWITCH
With CONSULT-III
Check trunk key cylinder switch ("TRUNK CYL SW") in DATA MONITOR mode in CONSULT�III. Scan Tool Testing and Procedures.
- When key inserted in trunk key cylinder is turned to FULL STROKE:

TRUNK CYL SW : ON

- When key is removed from the trunk key cylinder:

TRUNK CYL SW : OFF

Without CONSULT-III





Check voltage between BCM connector M19 terminal 41 and ground.





OK or NG
OK - Trunk key cylinder switch signal is OK.
NG - GO TO 2
2.CHECK TRUNK KEY CYLINDER SWITCH GROUND HARNESS
1. Turn ignition switch OFF.
2. Disconnect trunk key cylinder switch.





3. Check continuity between trunk key cylinder switch connector
B142 terminal 2 and body ground.





OK or NG
OK - GO TO 3
NG - Repair or replace harness.
3.CHECK TRUNK KEY CYLINDER SWITCH





Check continuity between trunk key cylinder switch terminals.





OK or NG
OK - GO TO 4
NG - Replace trunk key cylinder switch.
4.CHECK TRUNK KEY CYLINDER HARNESS
1. Disconnect BCM connector M19.





2. Check continuity between BCM connector (A) M19 terminal 41 and trunk key cylinder switch connector (B) B142 terminal 1 and body ground.





OK or NG
OK - Trunk key cylinder switch circuit is OK.
NG - Repair or replace harness.