Mitsubishi Grandis. Manual - part 31

 

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Mitsubishi Grandis. Manual - part 31

 

 

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-121

YES : 

Go to Step 2.

NO : 

<When the central door locking does not 
operate normally> Refer to Inspection 
Procedure C-1 "Central door locking system 
does not work 

P.54C-106

." <When the 

keyless entry system does not operate 
normally> Refer to Inspection Procedure 
E-1 "Keyless Entry System does not Work 

P.54C-186

."

Step 2. Pulse check
Check the input signals which are related to the 
tailgate opening and closing.

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

Q: Is the check result normal?

All the signals are received normally. : 

Go to Step 

3.

The ignition switch (IG1) signal is not received. : 

Refer to Inspection Procedure Q-2 "The 
ignition switch (IG1) signal is not received 

P.54B-420

."

The Tailgate lock release handle signal is not 
received. : 

Refer to Inspection Procedure Q-18 

"The tailgate lock release handle signal is 
not received 

P.54B-494

."

Step 3. Connector check: G-17 tailgate lock 
actuator connector

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the defective connector.

Step 4. Check the tailgate lock actuator.
Check that the tailgate lock actuator is in good 
condition. Refer to GROUP 42 

− Tailgate 

P.42-51

.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Replace the tailgate lock actuator.

Step 5. Resistance measurement at the G-17 
tailgate lock actuator connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Resistance between G-17 tailgate lock actuator 

connector terminal No.2 and body earth

OK: 2 

 or less

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Go to Step 6.

System switch

Check condition

Ignition switch (IG1)

When turned from ACC 
to ON

Tailgate lock release 
handle

When turned from OFF 
to ON

AC310222

Connector: G-17

Harness side

AD

G-17(B)

AC310222

Connector: G-17

Harness side

AD

G-17(B)

AC209364

AC209364

Connector C-05 
(Harness side)

MQ

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-122

Step 6. Check the wiring harness between G-17 
tailgate lock actuator connector terminal No.2 
and the body earth.

• 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 7. Connector check: C-221 ETACS-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Repair the defective connector.

AC310222

Connector: G-17

Harness side

AD

G-17(B)

AC310626

Connector: C-221

Junction block (Rear view)

<LHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

AC310620

Connector: C-221

Junction block 
(Rear view)

<RHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-123

Step 8. Check the wiring harness from C-221 
ETACS-ECU connector terminal No.61 to G-17 
tailgate lock actuator connector terminal No.1.

NOTE: 

Prior to the wiring harness inspection, check 
intermediate connector C-16 and G-14, and repair if 
necessary.

• Check the input and output lines for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Repair the wiring harness.

Step 9. Retest the system.

Check that the tailgate lock works 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 ETACS-ECU.

AC310626

Connector: C-221

Junction block (Rear view)

<LHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

AC310620

Connector: C-221

Junction block 
(Rear view)

<RHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

AC310222

Connector: G-17

Harness side

AD

G-17(B)

AC310615

AE

Connector: C-16 <LHD>

AC310631 AD

Connector: C-16 <RHD>

AC310222

Connector: G-14

AF

2

1

4

3

13

8

11

10

5

7

12

6

14

9

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-124

POWER WINDOWS

Inspection Procedure D-1: Power windows do not work at all.

CAUTION

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

Power Window Relay Circuit

FUSIBLE 
LINK

5

POWER WINDOW
RELAY

ETACS-ECU

POWER WINDOW
MAIN SWITCH

POWER 
WINDOW 
SUB 
SWITCH 
(FRONT: RH)

POWER 
WINDOW 
SUB 
SWITCH 
(REAR: LH)

POWER 
WINDOW 
SUB 
SWITCH 
(REAR: RH)

CPU

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       

J/B SIDE

 

 

 

 

 

 

 

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