Mitsubishi Grandis. Manual - part 216

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-326

ETACS-ECU

J/B SIDE

REAR
TURN-SIGNAL
LAMP (RH)

FRONT
TURN-SIGNAL
LAMP (RH)

SIDE
TURN-
SIGNAL
LAMP

DOOR
MIRROR
ASSEMBLY
(RH)

Right Turn-Signal Lamps Circuit <LHD>

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

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-327

COMMENTS ON TROUBLE SYMPTOM

If any of the turn-signal lamp does not illuminate 
normally, wiring harness connector(s) or the bulb 
may be defective.

POSSIBLE CAUSES

• Defective front turn-signal lamp bulb

• Defective side turn-signal lamp

• Defective rear turn-signal lamp bulb

• Damaged harness wires and connectors

ETACS-ECU

J/B SIDE

REAR
TURN-SIGNAL
LAMP (RH)

FRONT
TURN-SIGNAL
LAMP (RH)

SIDE
TURN-
SIGNAL
LAMP

DOOR
MIRROR
ASSEMBLY
(RH)

Right Turn-Signal Lamps Circuit <RHD>

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

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-328

DIAGNOSIS PROCEDURE

Step 1. Confirm which turn-signal lamp is 
defective.

Q: Which turn-signal lamp fails to illuminate 

correctly?

Front turn-signal lamp : 

Go to Step 2.

Side turn-signal lamp : 

Go to Step 7.

Rear turn-signal lamp : 

Go to Step 12.

Step 2. Connector check: A-33 front turn-signal 
lamp (RH) or A-23 front turn-signal lamp (LH) 
connector.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the defective connector.

AC310403

A-23 (B)

AI

Connector: A-23 <LHD>

Harness side

AC310398

A-23 (B)

AI

Connector: A-23 <RHD>

Harness side

AC310401

Connector: A-33 <LHD>

Harness side

AI

A-33 (B)

AC310396

Connector: A-33 <RHD>

Harness side

AG

A-33 (B)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-329

Step 3. Check the bulb(s) of the turn-signal 
lamps.

Check the bulb(s) of the defective lamp.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Replace the bulb(s) of the defective lamp.

Step 4. Resistance measurement at the A-33 front 
turn-signal lamp (RH) or A-23 front turn-signal 
lamp (LH) connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Resistance measurement between the defective 

AC310403

A-23 (B)

AI

Connector: A-23 <LHD>

Harness side

AC310398

A-23 (B)

AI

Connector: A-23 <RHD>

Harness side

AC310401

Connector: A-33 <LHD>

Harness side

AI

A-33 (B)

AC310396

Connector: A-33 <RHD>

Harness side

AG

A-33 (B)