Mitsubishi Grandis. Manual - part 137

 

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Mitsubishi Grandis. Manual - part 137

 

 

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-10

NOTE: In addition to the function-specific 
diagnostic menu, a service data menu is available 
for SWS monitor service data to check all items 
for each ECU.

• The switch condition does not meet the service 

data display: Input signal system related to 
defective functions

• The switch condition meets the service data 

display: Output signal system related to defective 
functions

6. Check of input signal circuit system

Check relevant switch, sensor, input signal-side 
ECU and their wiring harness and connector.

7. Check of output signal circuit system

Check an output signal-side ECU, electrical load 
components and their wiring harness and 
connector.

HOW TO CONNECT THE SWS MONITOR

M1549014800513

CAUTION

Always turn the ignition switch to the "LOCK" 
(OFF) position before connecting or 
disconnecting the SWS monitor and the MUT-III.

HOW TO CONNECT THE SWS 
COMMUNICATION LINE <SPECIAL TOOL 
SWS MONITOR HARNESS (FOR 
COLUMN-ECU) MB991812>

1. Remove the steering column cover.
2. Remove the steering column switch connector.
3. Connect special tool SWS monitor harness (for 

column-ECU) MB991812.

<WHEN CONNECTING THE DIAGNOSIS 
CONNECTOR BY USING THE 
INTERMEDIATE WIRES FOR SWS 
MONITOR CUSTOMISATION>

1. Connect the special tool Intermediate wires 

(MB991960) for SWS monitor customisation to 
the special tool MUT-III main harness A 
(MB991910). 

2. Connect the MUT-III main harness A (with the 

intermediate wires) to the special tool V.C.I. 
(MB991824) .

3. Connect the intermediate wires for SWS monitor 

customisation to the the diagnosis connector and 
the SWS monitor cartridge.

HOW TO ESTABLISH COMMUNICATION 
BETWEEN DOORS

Connect the MUT-III and the SWS monitor to the 

SWS communication lines. Refer to .

1. Select "DOOR CNT.COM." on the MUT-III.
2. Disconnect the SWS monitor cartridge from the 

SWS communication lines without switching off 
the MUT-III and the V.C.I.

AC103262AE

Column switch 
connector

Column switch 
connector at 
harness side 

MB991812

AC311046

AB

Diagnosis connector

MB991806
(SWSmonitor
cartridge)

MB991960

MB991824

MB991910

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-11

3. Connect special tool SWS monitor harness (for 

column-ECU) MB991812 to special tool adapter 
harness for door communication MB991896.

4. Connect special tool Probe harness MB991822 to 

special tool adapter harness for door 
communication MB991896 assembled in step 1.

5. Confirm that all the harnesses are connected. 

Then insert the probe of special probe harness 
MB991822 to each female connector terminal on 
special tool adapter harness for door 
communication MB991896 by backprobing.
NOTE: For the connectors and their terminal 
numbers on the door communication line for the 
probe to insert, refer to the reference table.

Reference table of connectors and their terminal numbers on door communication 
line

Insert the probe of the probe harness to each female 
connector terminal on the door communication line 
by backprobing.

<LH DRIVE VEHICLES>

AC103783AC

MB991812

MB991896

MB991822

Connector name

Connector number

Terminal 
No.

Intermediate connector

Instrument panel wiring 
harness and front door wiring 
harness (RH) combination

C-14 (Front door wiring 
harness (RH) side)

5

Instrument panel wiring 
harness and floor wiring 
harness combination

C-16 (Instrument panel wiring 
harness side)

29

Instrument panel wiring 
harness and front door wiring 
harness (LH) combination

C-27 (Front door wiring 
harness (LH) side)

3

Floor wiring harness and rear 
door wiring harness (RH) 
combination

D-03 (Floor wiring harness 
side)

8

Floor wiring harness and rear 
door wiring harness (LH) 
combination

D-16 (Floor wiring harness 
side)

8

Power window main switch

F-05

11

Power window sub switch (front RH)

F-15

6

Power window sub switch (rear RH)

F-18

6

Power window sub switch (rear LH)

F-02

6

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-12

AC310616

AE

Connectors: C-14, C-16

C-16

C-14

C-14

C-16

<LHD>

AC310613

Connector: C-27 <LHD>

AJ

AC310633 AB

Connector: D-03 <LHD>

D-03(B)

AC310207

AB

Connector: D-16

AC310209

Connector: F-02

F-02(B)

AB

Harness side

AC311150

AB

Connector: F-05

Harness side

<LHD>

10

1

6

14

5

12

13

4

11

7

2

3

8

9

F-05(B)

AC311147

AB

Connector: F-15

<LHD>

Harness side

F-15(B)

AC310216

Connector: F-18

F-18(B)

AB

Harness side

TROUBLESHOOTING

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-13

<RH DRIVE VEHICLES>

Connector name

Connector number

Terminal 
No.

Intermediate connector

Instrument panel wiring 
harness and front door wiring 
harness (RH) combination

C-14 (Front door wiring 
harness (RH) side)

3

Instrument panel wiring 
harness and floor wiring 
harness combination

C-16 (Instrument panel wiring 
harness side)

29

Instrument panel wiring 
harness and front door wiring 
harness (LH) combination

C-27 (Front door wiring 
harness (LH) side)

5

Floor wiring harness and rear 
door wiring harness (RH) 
combination

D-03 (Floor wiring harness 
side)

8

Floor wiring harness and rear 
door wiring harness (LH) 
combination

D-16 (Floor wiring harness 
side)

8

Power window main switch

F-05

11

Power window sub switch (front LH)

F-26

6

Power window sub switch (rear RH)

F-18

6

Power window sub switch (rear LH)

F-02

6

 

 

 

 

 

 

 

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