INSPECTION PROCEDURE 2: Right or Left Heated Door Mirror does not Operate

COMMENTS ON TROUBLE SYMPTOM

If either of the heated door mirrors does not work, the door mirror assembly may be defective.

POSSIBLE CAUSES

Malfunction of the door mirror assembly
Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Verify the operation of each heated door mirror.

Q. Which door mirror does not heat?

	Door mirror (RH) : Go to Step 2.

	Door mirror (LH) : Go to Step 10.

Step 2. Connector check: F-13-1 and F-13-2 door mirror (RH) heater element connectors

Q. Is the check result normal?

Go to Step 3.

Repair the defective connector.

Step 3. Check of the heater element of the door mirror (RH)

Check the heater element of the door mirror (RH). (Refer to

Q. Is the check result normal?

	Go to Step 4.

	Replace the mirror glass of the door mirror assembly (RH).

Step 4. Connector check: F-13 door mirror assembly (RH) connector.

Q. Is the check result normal?

Go to Step 5.

Repair the defective connector.

Step 5. Resistance measurement at the F-13 door mirror assembly (RH) connector.

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

(2)Resistance between F-13 door mirror assembly connector terminal No.5 and body earth.
OK: 2 Ω or less

Q. Is the check result normal?

Go to Step 7.

Go to Step 6.

Step 6. Check the wiring harness between F-13 door mirror assembly (RH) connector terminal No.5 and body earth.

note

Prior to the wiring harness inspection, check intermediate connector C-14, and repair if necessary.

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 7. Voltage measurement at the F-13 door mirror assembly (RH) connector.

(1)Turn the ignition switch to the ON position.
(2)Rear window defogger switch: ON
(3)Disconnect the connector, and measure at the wiring harness side.

(4)Voltage between F-13 door mirror assembly connector terminal No.1 and body earth.
OK: System voltage

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

Go to Step 8.

Step 8. Check the wiring harness between F-13 door mirror assembly (RH) connector terminal No.1 and C-205 junction block connector terminal No.3.

note

Prior to the wiring harness inspection, check intermediate connector C-14, and repair if necessary.

Check the power supply line for open circuit.

Q. Is the check result normal?

Go to Step 9.

Repair the wiring harness.

Step 9. Check of the troubles

Check that the heater element of the door mirror (RH) functions 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 door mirror assembly (RH).

Step 10. Connector check: F-07-1 and F-07-2 door mirror (LH) heater element connectors

Q. Is the check result normal?

Go to Step 11.

Repair the defective connector.

Step 11. Check of the heater element of the door mirror (LH)

Check the heater element of the door mirror (LH). (Refer to

Q. Is the check result normal?

	Go to Step 12.

	Replace the mirror glass of the door mirror assembly (LH).

Step 12. Connector check: F-07 door mirror assembly (LH) connector.

Q. Is the check result normal?

Go to Step 13.

Repair the defective connector.

Step 13. Resistance measurement at the F-07 door mirror assembly (LH) connector.

(1)Disconnect the connector, and measure at the wiring harness side.
(2)Resistance between F-07 door mirror assembly connector terminal No.5 and body earth.
OK: 2 Ω or less

Q. Is the check result normal?

Go to Step 15.

Go to Step 14.

Step 14. Check the wiring harness between F-07 door mirror assembly (LH) connector terminal No.5 and body earth.

note

Prior to the wiring harness inspection, check intermediate connector C-27, and repair if necessary.

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 15. Voltage measurement at the F-07 door mirror assembly (LH) connector.

(1)Turn the ignition switch to the ON position.
(2)Rear window defogger switch: ON
(3)Disconnect the connector, and measure at the wiring harness side.

(4)Voltage between F-07 door mirror assembly connector terminal No.1 and body earth
OK: System voltage

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

Go to Step 16.

Step 16. Check the wiring harness between F-07 door mirror assembly (LH) connector terminal No.1 and C-205 junction block connector terminal No.3.

note

Prior to the wiring harness inspection, check intermediate connector C-27, and repair if necessary.

Check the power supply line for open circuit.

Q. Is the check result normal?

Go to Step 17.

Repair the wiring harness.

Step 17. Check of the troubles

Check that the heater element works 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 door mirror assembly (LH).