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