Pinpoint Test 1

Flowchart No.1 Symptom Interior light does not illuminate [626] (Spot light function normally)

Possible Cause
^ Burnt interior light bulb
^ Damaged interior light
^ Damaged CPU
^ Damaged door switch
^ Open or short circuit in wiring harness
^ Poor connection of connector

Terminal Identification:

Action Chart:

Step 1
Measure the voltage at terminal A (L/R) of the interior light connector.

Bulb Inspection:

Action Chart:

Step 2
Remove and check the interior light bulb.

Vanity Mirror Inspection:

Action Chart:

Step 3
Verify that the interior light is properly grounded.

Terminal Identification:

Ohmmeter Connection:

Step 4
1. Remove the CPU from the joint box.
2. Disconnect the interior light connector.
3. Connect a jumper wire between terminal 1F of the CPU connector on the joint box and ground.





4. Check for continuity between terminal B (R/W) of the interior light connector and ground.

Ohmmeter Connection:

Action Chart:

Step5
1. Open any door.
2. Check for continuity between terminal 1E of the CPU connector on the joint box and ground.

Ohmmeter Connection:

Reference:

Step 6
1. Remove the door switch.
2. Check for continuity between the terminals of the door switch.
3. If correct, repair the wiring harness. (CPU Door switch)
4. If not as specified, replace the door switch.