INSPECTION PROCEDURE N-5: The door lamp does not illuminate normally.


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




COMMENTS ON TROUBLE SYMPTOM
The door lamps are energised through the ETACS-ECU. If a door is opened, the relevant door lamp will illuminate.
If this function does not work normally, these input signal circuit(s) or the ETACS-ECU may be defective.

POSSIBLE CAUSES

  • Malfunction of the door lamp bulbs
  • Malfunction of the door switch
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors

DIAGNOSTIC PROCEDURE

Step 1. Connector check: F-11 door lamp (front: LH), F-22 door lamp (front: RH) connector, F-09 door lamp (rear: LH), F-25 door lamp (rear: RH)




Q. Is the check result normal?

Go to Step 2.

Repair the defective connector.

Step 2. Check the bulbs of the door lamp.
Check that the door lamp bulbs are not burned out.

Q. Is the check result normal?
Go to Step 3.
Replace the door lamp bulb.

Step 3. Connector check: D-17 door switch (front: LH), D-02 door switch (front: RH) connector, D-13 door switch (rear: LH) connector, D-08 door switch (rear: RH) connector

Q. Is the check result normal?

Go to Step 4.

Repair the defective connector.

Step 4. Check the door switch.
Check the door switch, which corresponds to the defective door lamp (Refer to GROUP 42 - Door ).

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

Step 5. Connector check: C-219 ETACS-ECU connector

Q. Is the check result normal?

Go to Step 6.

Repair the defective connector.

Step 6. Check the wiring harness from C-219 ETACS-ECU connector terminal No.6 to D-17 door switch (front: LH) or D-02 door switch (front: RH) connector, D-13 door switch (rear: LH) connector, D-08 door switch (rear: RH) connector terminal No.2.






note Prior to the wiring harness inspection, check intermediate connector C-14 <door switch (front: RH)>, C-16 <door switch (front: RH) and door switch (front: LH)>, C-27 <door switch (front: LH)>, D-03 <door switch (rear: RH)>, D-16 <door switch (rear: LH)>, junction block connector C-210, and repair if necessary.

Q. Is the check result normal?

Replace the door lamp.

Repair the wiring harness.