Pinpoint Test 21

Flowchart No. 21 Symptom Even if the light switch remains on, light-on reminder warning alarm does not sound when ignition switch is turned off and any door is opened

Possible cause
^ Damaged light switch
^ Damaged CPU
^ Damaged door switch
^ Open circuit in wiring harness
^ Poor connection of connector

Step 1
1. Remove the front side trim.
2. Remove the joint box attaching bolt and screw.
3. Remove the CPU from the joint box.
4. Make sure the light switch is turned on and the ignition switch is turned off.

Voltmeter Connection:

Action Chart:

5. Measure the voltage at terminal 1P of the CPU connector on the joint box.

Step 2
1. Open any door.

Ohmmeter Connection:

Action Chart:

2. Check for continuity between terminal 1E of the CPU on the joint box and ground.

Step 3
1. Remove the door switches.

Ohmmeter Connection:

Action Chart:

2. Check for continuity between the terminals of each switch.
3. If correct, repair the wiring harness (CPU-door switch).
4. If not as specified, replace the door switch.