Inspection Procedure 12: The turn-signal lamp indicator does not illuminate.

COMMENTS ON TROUBLE SYMPTOM



PROBABLE CAUSES



  • Malfunction of the combination meter
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check the turn-signal lamps.
When the turn-signal lamp switch is operated, check that the turn-signal lamps illuminate/go off normally.

Q. Are the turn-signal lamps in good condition?
Go to Step 2.
First, repair the turn-signal lamps. Refer to trouble symptom chart .

STEP 2. Connector check: C-111 and C-113 combination meter connector


Q. Is the check result normal?

Go to Step 3.

Repair the defective connector.

STEP 3. Resistance measurement at the C-111 and C-113 combination meter connector.


(1)Disconnect the connector, and measure at the wiring harness side.

(2)Resistance between C-111 combination meter connector terminal No.57 and body earth
OK: Continuity exists (2 Ω or less)

(3)Check the resistance between the C-113 combination meter connector terminal No.13 and body earth.
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?

Go to Step 5.

Go to Step 4.

STEP 4. Check the wiring harness from C-111 combination meter connector terminal No.57 or C-113 combination meter connector terminal No.13 to body earth.



  • Check the earth wires for open circuit.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).

Repair the wiring harness.

STEP 5. Connector check: C-113 combination meter connector and C-218 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-111 combination meter (turn: LH) connector terminal No.56 or C-113 combination meter (turn: RH) connector terminal No.23 to C-218 ETACS-ECU connector terminal No.3 or No.4.





note Prior to the wiring harness inspection, check junction block connector C-210 and intermediate connector C-54 <LHD> or C-14 <RHD>, and repair if necessary.

  • Check the output lines for open circuit.

Q. Is the check result normal?

Go to Step 7.

Repair the wiring harness.

STEP 7. Retest the system.
Check that the turn-signal lamp indicator illuminates normally.

Q. Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace the combination meter.