Mitsubishi Grandis. Manual - part 826

DOOR MIRROR

EXTERIOR

51-39

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?

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet   

REAR WINDOW
DEFOGGER RELAY

REAR WINDOW
DEFOGGER RELAY

DOOR
MIRROR
ASSEMBLY (RH)

DOOR
MIRROR
ASSEMBLY (LH)

MIRROR 
HEATER

MIRROR 
HEATER

Heated door mirror circuit

AC303175

E-13-1

E-13-2

E-13-1

E-13-2

AB

DOOR MIRROR

EXTERIOR

51-40

YES : 

Go to Step 3.

NO : 

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 

P.51-51

.)

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

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?

YES : 

Go to Step 5.

NO : 

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?

YES : 

Go to Step 7.

NO : 

Go to Step 6.

AC303018AB

Connector: F-13

Harness side

AC303018AB

Connector: F-13

Harness side

AC302986AB

Connector F-13

(harness side)

DOOR MIRROR

EXTERIOR

51-41

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?

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00, How to 
use Troubleshooting/inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-5

).

NO : 

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?

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00, How to 
use Troubleshooting/inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-5

).

NO : 

Go to Step 8.

AC303018AB

Connector: F-13

Harness side

AC302956AB

Connector: C-14

AC303018AB

Connector: F-13

Harness side

AC303097AB

Connector F-13

(harness side)

DOOR MIRROR

EXTERIOR

51-42

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?

YES : 

Go to Step 9.

NO : 

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?

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00, How to 
use Troubleshooting/inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-5

).

NO : 

Replace the door mirror assembly (RH).

AC303018AB

Connector: F-13

Harness side

AC311691

21

7

16 15

17

18

20 19

1

2

3

4

5

6

23 22

24

25

28

26

27

9

8

10

11

14

12

13

Harness side

AB

Connector: F-205

Junction block (Front view)

AC302956AB

Connector: C-14