Mitsubishi Grandis. Manual - part 49

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-193

Inspection Procedure F-2: Any of the sunroof switch positions is defective.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If any of the sunroof switch positions is defective, the 
communication line between the sunroof switch and 
the sunroof motor assembly (sunroof-ECU) may be 
defective.

POSSIBLE CAUSES

• Malfunction of the sunroof switch

• Malfunction of the sunroof motor assembly 

(sunroof-ECU)

• Damaged harness wires and connectors

Sunroof Switch Circuit

SUNROOF-ECU

SUNROOF
SWITCH

SUNROOF MOTOR
ASSEMBLY

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) NOT USING SWS MONITOR

54B-194

DIAGNOSTIC PROCEDURE

Step 1. Connector check: E-05 sunroof switch 
connector

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the connector.

Step 2. Check the sunroof switch.
Refer to GROUP 42 

− Sunroof 

P.42-66

.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Replace the sunroof switch.

Step 3. Connector check: E-07 sunroof motor 
assembly connector

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the connector.

Step 4. Retest the system.

Q: Which switch position is defective?

"OPEN" : 

Go to Step 5.

"CLOSE" : 

Go to Step 6.

AC310651

AF

Connector: E-05
<LHD>

Harness side

AC310655

AG

Connector: E-05
<RHD>

Harness side

AC310651

Connector: E-07 <LHD>

AE

Harness side

AC310655

Connector: E-07 <RHD>

AF

Harness side

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-195

Step 5. Check the wiring harness between E-07 
sunroof motor assembly connector terminal No.8 
and E-05 sunroof switch connector terminal 
No.1.

• Check the communication line for open circuit.

Q: Is the check result normal?

YES : 

Replace the sunroof motor assembly.

NO : 

Repair the wiring harness.

Step 6. Check the wiring harness between E-07 
sunroof motor assembly connector terminal No.6 
and E-05 sunroof switch connector terminal 
No.3.

• Check the communication line for open circuit.

Q: Is the check result normal?

YES : 

Replace the sunroof motor assembly.

NO : 

Repair the wiring harness.

AC310652

AG

Connectors: E-05, E-07

Harness side

E-05

E-07

E-05

E-07

Harness side

<LHD>

AC310656

AF

Connectors: E-05, E-07

Harness side

E-05

E-07

Harness side

E-05

E-07

<RHD>

AC310652

AG

Connectors: E-05, E-07

Harness side

E-05

E-07

E-05

E-07

Harness side

<LHD>

AC310656

AF

Connectors: E-05, E-07

Harness side

E-05

E-07

Harness side

E-05

E-07

<RHD>

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-196

Inspection Procedure F-3: Sunroof timer function does not work normally.

CAUTION

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

Sunroof Timer Function <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

CONTROL CIRCUIT

IGNITION
SWITCH (IG2)

SUNROOF MOTOR
ASEEMBLY

ETACS-ECU