Mitsubishi Grandis. Manual - part 90

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-357

DIAGNOSTIC PROCEDURE

Step 1. Connector check: A-32 front fog lamp 
(RH) connector or A-24 front fog lamp (LH) 
connector

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the defective connector.

Step 2. Check the bulbs of the front fog lamps 
lamp.
Check the bulb(s) of the defective lamp.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Replace the bulb(s) of the defective lamp.

AC310403

A-24 (B)

AG

Connector: A-24 <LHD>

Harness side

AC310398

A-24 (B)

AG

Connector: A-24 <RHD>

Harness side

AC310401

Connector: A-32 <LHD>

Harness side

A-32 (B)

AC

AC310396

Connector: A-32 <RHD>

Harness side

A-32 (B)

AC

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-358

Step 3. Resistance measurement at A-32 front 
fog lamp (RH) connector or A-24 front fog lamp 
(LH) connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Check the resistance between the lamp 

connector and body earth.

•

Resistance between A-32 front fog lamp (RH) 

connector terminal No.1 and body earth

• Resistance between A-24 front fog lamp (LH) 

connector terminal No.1 and body earth

OK: 2 

Ω or less

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Go to Step 4.

Step 4. Connector check: A-25 earth connector

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the defective connector.

AC310403

A-24 (B)

AG

Connector: A-24 <LHD>

Harness side

AC310398

A-24 (B)

AG

Connector: A-24 <RHD>

Harness side

AC310401

Connector: A-32 <LHD>

Harness side

A-32 (B)

AC

AC310396

Connector: A-32 <RHD>

Harness side

A-32 (B)

AC

AC310506

AC310506 BL

Connector A-24, A-32
(Harness side)

AC310403

A-25 (GR)

AE

Connector: A-25 <LHD>

Harness side

AC310398

A-25 (GR)

AE

Connector: A-25 <RHD>

Harness side

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-359

Step 5. Check the wiring harness from A-32 front 
fog lamp (RH) connector or A-24 front fog lamp 
(LH) connector terminal No.1 to A-25 earth 
connector terminal No.5 or No.2.

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-360

• 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 

Cope with Intermittent Malfunction 

P.00-5

).

NO : 

Repair the wiring harness.

Step 6. Connector check: A-08X front fog lamp 
relay connector

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the defective connector.

AC310404

AC

Connectors: A-24, A-25

A-24 (B)

A-24

Harness side

A-25 (GR)

A-25

Harness side

<LHD>

AC310399

AC

Connectors: A-24, A-25

A-24 (B)

A-24

Harness side

A-25 (GR)

A-25

Harness side

<RHD>

AC310401

Connector: A-32 <LHD>

Harness side

A-32 (B)

AC

AC310396

Connector: A-32 <RHD>

Harness side

A-32 (B)

AC

AC311521AD

Connector: A-08X

1

3

2

4

Front of 
vehicle

Relay box side