Mitsubishi Grandis. Manual - part 267

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-530

Step 5. Connector check: C-220 ETACS-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the defective connector.

AC312037

Connector: C-220

Junction block (Rear view)

AC

<LHD>

Harness side

AC312047

Connector: C-220

Junction block (Rear view)

AC

<RHD>

Harness side

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-531

Step 6. Check the wiring harness from G-16 
tailgate key switch connector terminal Nos.1 and 
3 to C-220 ETACS-ECU connector terminal 
Nos.33 and 34.

NOTE: 

Prior to the wiring harness inspection, check 
intermediate connector C-15 and G-14, and repair if 
necessary.

• Check the input line for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the wiring harness.

AC312037

Connector: C-220

Junction block (Rear view)

AC

<LHD>

Harness side

AC312047

Connector: C-220

Junction block (Rear view)

AC

<RHD>

Harness side

AC312078

Connector: G-16

Harness side

AD

AC312033

Connector: C-15 <LHD>

AF

38

1213

11

26

14

1

20

6

232425

37

31

36

30

10

9

2122

35

8

7

34

17

29

1819

5

4

1516

33

28

32

27

3

2

AC312043

Connector: C-15 <RHD>

AJ

38

1213

11

26

14

1

20

6

232425

37

31

36

30

10

9

2122

35

8

7

34

17

29

1819

5

4

1516

33

28

32

27

3

2

AC312078

Connector: G-14

AC

2

1

4

3

13

8

11

10

5

7

12

6

14

9

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-532

Step 7. ETACS switch data by using the SWS 
monitor

Check the input signal from the tailgate key switch.

• Tailgate key switch: Neutral to lock

• Tailgate key switch: Neutral to unlock

OK: Normal conditions are displayed for all 
the items.

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.

Item No. Item name

Normal conditions

Item 18

TRK UNLOCK SW OFF

Item 19

GATE LOCK SW

ON (only when 
operated to lock)

Item No. Item name

Normal conditions

Item 18

TRK UNLOCK SW ON (only when 

operated to unlock)

Item 19

GATE LOCK SW

OFF

INPUT SIGNAL PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-533

Inspection Procedure Q-18: The tailgate lock release handle signal is not received.

CAUTION

Whenever the ECU is replaced, ensure that the 
input signal circuit is normal.

COMMENTS ON TROUBLE SYMPTOM

Input signal from the tailgate lock release handle is 
used to operate the central door locking function. If 
the signal is abnormal, the central door locking 
function will not work normally.

POSSIBLE CAUSES

• Malfunction of the tailgate lock release handle

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Connector check: G-06 tailgate lock 
release handle connector

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the defective connector.

TLAILGATE
LOCK RELEASE
HANDLE

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   

Tailgate Lock Release Handle Input Circuit

AC312078

Connector: G-06

AE

Harness side