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Home >> Mitsubishi >> 2012 >> Lancer Evolution L4-2.0L Turbo (4B11T/C) >> Repair and Diagnosis >> Body and Frame >> Mirrors >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Exterior Mirror >> Inspection Procedure 2

Inspection Procedure 2




INSPECTION PROCEDURE 2: Either of the Heated Door Mirror does not Operate

























CIRCUIT OPERATION

If either of the heated door mirror does not operate normally, it may be due to malfunctions in the heated door mirror circuit or door mirror.

TROUBLESHOOTING HINTS

- Malfunction of the heated door mirror circuit
- Malfunction of the door mirror
- The wiring harness or connectors may have loose, corroded or damaged terminals, or terminals pushed back in the connector.

DIAGNOSIS

Required Special Tools:

- MB991223: Test Harness Set


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

Q. Which door mirror does not heat?

Door mirror (LH) : Go to Step 2.
Door mirror (RH) : Go to Step 8.
STEP 2. Check door mirror (LH) connector E-01 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q. Is door mirror (LH) connector E-01 in good condition?

YES Go to Step 3.
NO Repair or replace the damaged component(s). Harness Connector Inspection. And then check to see that the heater function of the door mirror (LH) operates normally.
STEP 3. Check the heater of the door mirror (LH).

CAUTION:
When relocating the car between locations of extremely different temperatures
(warm and cold), leave the car in a location for a while to adapt to the temperature prior to checking it.





Check to see that the resistance between terminal 1 and 5 of the door mirror (LH) connector E-01.

- The resistance should be 8.4± 1.2ohms at 25°C (77°F).

Q. Is the resistance normal?

YES Go to Step 4.

NO Replace the door mirror (LH). And then check to see that the heater function of the door mirror (LH) is operating normally.

STEP 4. Check the ground circuit between door mirror (LH) connector E-01 and ground for open circuit. Measure the resistance at door mirror (LH) connector E-01.

(1)Disconnect door mirror (LH) connector E-01 and check at the wiring harness side connector.





(2)Measure the resistance value between terminal 1 and ground.

- The resistance should be 2 ohms or less.

Q. Is the measured resistance 2 ohms or less?

YES Go to Step 6.

NO Go to Step 5.

STEP 5. Check the wiring harness between door mirror (LH) connector E-01 (terminal 5) and ground.

NOTE:
Also check the intermediate connectors C-128 and C-129 for loose, corroded or damaged terminals, or terminals pushed back in the connector. If the intermediate connectors C-128 and C-129 are damaged, repair or replace the damaged component(s) as described in Harness Connector Inspection Harness Connector Inspection.

Q. Is the wiring harness between door mirror (LH) connector E-01 (terminal 1) and ground in good condition?

YES No action is necessary and testing is complete.
NO The wiring harness may be damaged. Repair the wiring harness as necessary. And then check to see that the heater function of the door mirror (LH) operates normally.
STEP 6. Check rear window defogger relay connector C-306 for loose, corroded or damaged terminal, or terminals pushed back in the connector.

Q. Is rear window defogger relay connector C-306 in good condition?

YES Go to Step 7.
NO Repair or replace the damaged component(s). Harness Connector Inspection. And then check to see that the heater function of the door mirror (LH) operates normally.
STEP 7. Check the wiring harness between door mirror (LH) connector E-01 (terminal 1) and rear window defogger relay connector C-306 (terminal 3).

NOTE:
Also check the intermediate connector C-129 for loose, corroded or damaged terminals, or terminals pushed back in the connector. If the intermediate connector C-129 is damaged, repair or replace the damaged component(s) as described in Harness Connector Inspection Harness Connector Inspection.

Q. Is the wiring harness between door mirror (LH) connector E-01 (terminal 1) and rear window defogger relay connector C-306 (terminal 3) in good condition?

YES No action is necessary and testing is complete.
NO Repair the wiring harness as necessary. And then check to see that the heater function of the door mirror (LH) operates normally.
STEP 8. Check the door mirror (RH) connector E-03 for loose, corroded or damaged terminals, or terminals pushed back in the connector.

Q. Is the door mirror (RH) connector E-03 in good condition?

YES Go to Step 9.
NO Repair or replace the damaged component(s). Harness Connector Inspection. And then check to see that the heater function of the door mirror (RH) operates normally.
STEP 9. Check the heater function of the door mirror (RH).

CAUTION:
When relocating the car between locations of extremely different temperatures
(warm and cold), leave the car in a location for a while to adapt to the temperature prior to checking it.





Check to see that the resistance between terminal 1 and 5 of the door mirror (RH) connector E-03.

- The resistance should be 8.4± 1.2ohms at 25°C (77°F).

Q. Is the resistance normal?

YES Go to Step 10.

NO Replace the door mirror (RH). And then check to see that the heater function of the door mirror (RH) operates normally.

STEP 10. Check the ground circuit between door mirror (RH) connector E-03 and ground for open circuit. Measure the resistance at door mirror (RH) connector E-03.

(1)Disconnect door mirror (RH) connector E-03, and check at the wiring harness side connector.





(2)Measure the resistance value between terminal 1 and ground.

- The resistance should be 2 ohms or less.

Q. Is the measured resistance 2 ohms or less?

YES Go to Step 12.

NO Go to Step 11.

STEP 11. Check the wiring harness between door mirror (RH) connector E-03 (terminal 5) and ground.

NOTE:
Also check the intermediate connectors C-116 and C-117 for loose, corroded or damaged terminals, or terminals pushed back in the connector. If the intermediate connectors C-116 and C-117 are damaged, repair or replace the damaged component(s) as described in Harness Connector Inspection Harness Connector Inspection.

Q. Is the wiring harness between door mirror (RH) connector E-03 (terminal 1) and ground in good condition?

YES No action is necessary and testing is complete.
NO The wiring harness may be damaged. Repair the wiring harness as necessary. And then check to see that the heater function of the door mirror (RH) operates normally.
STEP 12. Check rear window defogger relay connector C-306 for loose, corroded or damaged terminal, or terminals pushed back in the connector.

Q. Is rear window defogger relay connector C-306 in good condition?

YES Go to Step 13.
NO Repair or replace the damaged component(s). Harness Connector Inspection. And then check to see that the heater function of the door mirror (RH) operates normally.
STEP 13. Check the wiring harness between door mirror (RH) connector E-03 (terminal 1) and rear window defogger relay connector C-306 (terminal 3).

NOTE:
Also check the intermediate connector C-117 for loose, corroded or damaged terminals, or terminals pushed back in the connector. If the intermediate connector C-117 is damaged, repair or replace the damaged component(s) as described in Harness Connector Inspection Harness Connector Inspection.

Q. Is the wiring harness between door mirror (RH) connector E-03 (terminal 1) and rear window defogger relay connector C-306 (terminal 3) in good condition?

YES No action is necessary and testing is complete.
NO Repair the wiring harness as necessary. And then check to see that the heater function of the door mirror (RH) operates normally.
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