Mitsubishi Grandis. Manual - part 63

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-249

Step 11. Check the wiring harness between A-31 
headlamp washer motor connector terminal No.1 
and A-14X front-ECU connector terminal No.11.

• Check the output line for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 12.

NO : 

Repair the wiring harness.

Step 12. Retest the system.

The headlamp washer should now work normally.

Q: Is the check result normal?

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00 

− How to 

Cope with Intermittent Malfunction 

P.00-5

).

NO : 

Replace the front-ECU.

AC311521AB

Connector: A-14X

Relay box side

AC310401

Connector : A-31 <LHD>

AH

A-31(GR)

Harness side

AC310396

Connector : A-31 <RHD>

AH

A-31(GR)

Harness side

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-250

ELECTRIC RETRACTABLE REMOTE 
CONTROLLED DOOR MIRROR

Inspection Procedure J-1: Electric retractable remote controlled door mirror does not work at all.

CAUTION

Whenever the ECU is replaced, ensure that the 
input and output signal circuits are normal.

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-251

Door Mirror Relay Circuit <LHD>

FUSIBLE LINK 

ETACS-ECU

J/B SIDE

DOOR MIRROR
ASSEMBLY (LH)

30

DOOR MIRROR
ASSEMBLY (RH)

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   

DOOR 
MIRROR 
FOLD RELAY

DOOR 
MIRROR 
UNFOLD RELAY

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-252

COMMENTS ON TROUBLE SYMPTOM

If the electric retractable remote controlled door 
mirror does not work at all, these power supply 
circuit(s), these earth circuit(s), remote controlled 
mirror switch or ETACS-ECU may be defective.

POSSIBLE CAUSES

• Malfunction of the remote controlled mirror switch

• Malfunction of ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSTIC PROCEDURE

Step 1. Pulse check
Check the input signals below which are related to 
the electric retractable remote controlled door mirror.

OK: The MUT-III sounds or the voltmeter 
needle fluctuates.

Q: Is the check result normal?

Door Mirror Relay Circuit <RHD>

FUSIBLE LINK 

ETACS-ECU

J/B SIDE

DOOR MIRROR
ASSEMBLY (LH)

30

DOOR MIRROR
ASSEMBLY (RH)

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   

System switch

Check conditions

Ignition switch (ACC)

When turned from the 
LOCK (OFF) position to 
the ACC position

Electric remote 
controlled mirror switch 
(folding/unfolding switch)

When the switch turned 
from off to on