Inspection Procedure 11: Any of the Position Lamps or the Licence Plate Lamp does not Illuminate.



















COMMENTS ON TROUBLE SYMPTOM




PROBABLE CAUSES



  • Malfunction of bulbs
  • Malfunction of licence plate lamp
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. Connector check: A-54 <position lamp RH> or A-37 <position lamp LH> headlamp assembly connector, F-08 <licence plate lamp LH> or F-03 <licence plate lamp RH> licence plate lamp connector


Q. Is the check result normal?





STEP 2. Bulb check



Q. Is the check result normal?





STEP 3. Resistance measurement at the A-54 <position lamp RH> or A-37 <position lamp LH> headlamp assembly connector, F-08 <licence plate lamp LH> or F-03 <licence plate lamp RH> licence plate lamp connector


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Measure the resistance between the connector of lamp which does not illuminate and the body earth.

  • Measure the resistance between the A-37 (LH), A-54 (RH) headlamp assembly connector terminal No. 8 and the body earth. <Position lamp>
  • Measure the resistance between the F-03 (LH), F-08 (RH) licence plate lamp connector terminal No. 1 and the body earth. <Licence plate lamp>
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?





STEP 4. Wiring harness check between the A-54 <position lamp RH> or A-37 <position lamp LH> headlamp assembly connector terminal No. 8 or F-08 <licence plate lamp RH> or F-03 <licence plate lamp LH> licence plate lamp connector terminal No. 1 and the body earth



  • Check the earth wires for open circuit.

Q. Is the check result normal?





STEP 5. Connector check: C-304 <position lamp>, C-311 <licence plate lamp> ETACS-ECU connector


Q. Is the check result normal?





STEP 6. Wiring harness check between the A-54 <position lamp RH>, A-37 <position lamp LH> headlamp assembly connector terminal No. 6 and the C-304 ETACS-ECU connector terminal No. 7 <RH> or 3 <LH>, or the F-08 <licence plate lamp RH>, or the F-03 <licence plate lamp LH> licence plate lamp connector terminal No. 2 and C-311 ETACS-ECU connector terminal No. 10


note Before the wiring harness check, check the D-12 <licence plate lamp>, and repair that if necessary.

  • Check the output lines for open circuit.

Q. Is the check result normal?





STEP 7. Retest the system



Q. Is the check result normal?