Inspection Procedure 3: The rear room lamp does not illuminate normally. <vehicles without sunroof>


caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.


COMMENTS ON TROUBLE SYMPTOM


If the rear room lamp do not illuminate, the wiring harness connector(s), the bulb or the fuse may be defective or burned out.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. Check if the front room lamp and ignition key cylinder illumination lamp illuminates.
Check whether the front room lamp and ignition key cylinder illumination lamp illuminates normally.

Q. Is the check result normal?
Go to Step 2.
Refer to Inspection Procedure 1 "The interior lamps (front room ramp, rear room lamp and ignition key cylinder illumination lamp) does not illuminate or extinguish normally ."

STEP 2. Retest the system.

Q. At which switch positions (DOOR or ON), the rear room lamp does not illuminate?

The lamp does not illuminate at both the ON and DOOR positions. : Go to Step 3.
The lamp does not illuminate at the door position. : Go to Step 7.
The lamp does not illuminate at the ON position. : Replace the rear room lamp.

STEP 3. Connector check: D-06 rear room lamp connector


Q. Is the check result normal?

Go to Step 4.

Repair the defective connector.

STEP 4. Check the bulb.
Check that the rear room lamp bulb is not blown.

Q. Is the check result normal?
Go to Step 5.
Replace the rear room lamp bulb.

STEP 5. Check the rear room lamp.
Check whether the rear room lamp illuminates normally.

Q. Is the check result normal?
Go to Step 6.
Replace the rear room lamp.

STEP 6. Check the wiring harness from D-06 rear room lamp connector terminal No.1 to fusible link (20).




note Prior to the wiring harness inspection, check junction block connectors C-206 and C-213, and repair if necessary.
Check the power supply line for open circuit and short circuit.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).

Repair the wiring harness.

STEP 7. Connector check: C-218 ETACS-ECU connector and D-06 rear room lamp connector




Q. Is the check result normal?

Go to Step 8.

Repair the defective connector.

STEP 8. Check the wiring harness from C-218 ETACS-ECU connector terminal No.18 to D-06 rear room lamp connector terminal No.2





note Prior to the wiring harness inspection, check junction block connector C-206, and repair if necessary.
Check the input and output lines for open circuit.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).

Repair the wiring harness.