Inspection Procedure 2: Any of the Front Fog Lamps does not Illuminate Normally.










COMMENTS ON TROUBLE SYMPTOM



PROBABLE CAUSES



  • Malfunction of bulbs
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. Connector check: A-42 (LH) or A-50 (RH) front fog 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-42 (LH) ro A-50 (RH) front fog 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-42 (LH) front fog lamp connector terminal No. 1 and the body earth.
  • Measure the resistance between the A-50 (RH) front fog lamp connector terminal No. 1 and the body earth.
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?





STEP 4. Wiring harness check between the A-42 (LH) or A-50 (RH) front fog lamp connector terminal No. 1 and body earth



  • Check the earth wires for open circuit.

Q. Is the check result normal?





STEP 5. Connector check: A-14X front fog lamp relay connector


Q. Is the check result normal?





STEP 6. Wiring harness check between the A-14X front fog lamp relay connector terminal No. 3 and the A-42 front fog lamp (LH) or A-50 front fog lamp (RH) connector terminal No. 2


note Before the wiring harness check, check the intermediate connector A-46, and then 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?