Mitsubishi Grandis. Manual - part 51

 

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Mitsubishi Grandis. Manual - part 51

 

 

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-201

Step 6. Check the wiring harness between E-07 
sunroof motor assembly connector terminal 
No.10 and C-221 ETACS-ECU connector terminal 
No.59.

NOTE: 

Prior to the wiring harness inspection, check 
intermediate connector C-128 and joint connector 
C-01, and repair if necessary.

• Check the communication lines for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the wiring harness.

AC310651

Connector: E-07 <LHD>

AE

Harness side

AC310655

Connector: E-07 <RHD>

AF

Harness side

AC310626

Connector: C-221 <LHD>

AG

Junction block (rear view)

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58

59

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61

62

63

64

65

66

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69

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Harness side

C-221(GR)

AC310620

Connector: C-221 <RHD>

AF

Junction block (rear view)

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56

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58

59

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61

62

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64

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69

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Harness side

C-221(GR)

AC310614

BI

Connectors: C-01, C-128

C-01

C-128

C-01

C-128

 <LHD>

AC310632BB

Connectors: C-01, C-128 

C-01

C-128

C-01

C-128

<RHD>

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-202

Step 7. Retest the system.

Check that the sunroof timer function 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 sunroof motor assembly.

Inspection Procedure F-4: The sunroof inhibition function does not work normally (The sunroof 
operation lock warning buzzer does not sound).

CAUTION

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

SUNROOF MOTOR
ASSEMBLY

CPU

ETACS-
ECU

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

Sunroof Lock Function <LHD>

POWER 
WINDOW 
MAIN 
SWITCH

(LOCK SWITCH)

CPU

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-203

COMMENTS ON TROUBLE SYMPTOM

If the sunroof inhibition function does not work 
normally, the sunroof motor assembly, the power 
window main switch or the ETACS-ECU may be 
defective.

POSSIBLE CAUSES

• Malfunction of the power window main switch

• Malfunction of the sunroof motor assembly

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Which does not operate normally, the 
sunroof inhibition or the sunroof operation lock 
buzzer?

Q: Which does not operate normally, the sunroof 

inhibition or the sunroof operation lock buzzer?

The sunroof inhibition does not work normally. : 

Go to Step 2.

The sunroof operation lock buzzer does not work 
normally. : 

Go to Step 4.

Neither operates normally. : 

Go to Step 5.

Step 2. Check for sunroof diagnosis code.
Check whether the sunroof-related diagnosis code is 
set.

Q: Is the diagnosis code set?

YES : 

Go to Step 3.

NO : 

Refer to diagnosis code chart 

P.54B-29

.

Step 3. Check the operation of the sunroof.
Check that the sunroof works normally by using the 
sunroof switch.

Q: Is the check result normal?

SUNROOF MOTOR
ASSEMBLY

CPU

ETACS-
ECU

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

Sunroof Lock Function <RHD>

POWER 
WINDOW 
MAIN 
SWITCH

(LOCK SWITCH)

CPU

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-204

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00 

− How to 

Cope with Intermittent Malfunction 

P.00-5

).

NO : 

Inspection procedure F-1 "The sunroof does 
not work 

P.54B-186

."

Step 4. Check the power supply circuit.
When the ignition switch is turned to the LOCK 
(OFF) position, check if the hazard warning lamps 
illuminate.

Q: Is the check result normal?

YES : 

Replace the ETACS-ECU.

NO : 

Refer to inspection procedure A-2 "Check 
the ETACS-ECU battery power supply 
circuit 

P.54B-87

."

Step 5. Confirm the operation of the power 
windows.
Check that each of the power windows (excluding 
the driver's door) works normally by using the power 
window main switch.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Inspection procedure D-4 "Passenger’s 
and/or rear power window(s) do not work by 
means of the power window main switch 

P.54B-157

."

Step 6. Confirm the operation of the power 
windows.
Turn on the power window lock switch. Check that 
neither of the power windows (excluding the driver's 
door) works when the relevant power window sub 
switch is operated.

Q: Is the check result normal?

YES : 

Replace to the power window main switch.

NO : 

Go to Step 7.

Step 7. Check the operation of the sunroof.
Check that the sunroof works normally by using the 
sunroof switch.

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Inspection procedure F-1 "The sunroof does 
not work 

P.54B-186

."

Step 8. Check the power supply circuit.
When the ignition switch is turned to the LOCK 
(OFF) position, check if the hazard warning lamps 
illuminate.

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Refer to inspection procedure A-2 "Check 
the ETACS-ECU battery power supply 
circui

P.54B-87

."

Step 9. MUT-III diagnosis code
When the ignition switch is turned to the LOCK 
(OFF) position, check that the ETACS-ECU does not 
set the diagnosis code.

Q: Is the diagnosis code set?

YES : 

Refer to diagnosis code chart 

P.54B-29

.

NO : 

The trouble can be an intermittent 
malfunction (Refer to GROUP 00 

− How to 

Cope with Intermittent Malfunction 

P.00-5

).

Inspection Procedure F-5: Sunroof anti-trap function does not work normally.

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

If the sunroof anti-trap function does not work, the 
sunroof motor assembly (sunroof-ECU) may be 
defective.

POSSIBLE CAUSES

• Malfunction of the sunroof motor assembly 

(sunroof-ECU)

DIAGNOSTIC PROCEDURE

Retest the system.
Check that the sunroof anti-trap function 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 sunroof motor assembly.

 

 

 

 

 

 

 

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