Mitsubishi Outlander GS45X. Manual - part 137

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STEP 4. Check the wiring harness between multivision 
display connector C-07 (terminal 47, 48, 64) and audio and 
video adaptor connector C-117 (terminal 1, 6, 4).

• Check the communication lines for open circuit and short 

circuit.

NOTE: Also check intermediate connectors D-123 and C-15 for 
loose, corroded, or damaged terminals, or terminals pushed 
back in the connector. If intermediate connector D-123 or C-15 
is damaged, repair or replace the connector as described in 
GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between multivision display 

connector C-07 (terminal 47, 48, 64) and audio and video 
adaptor connector C-117 (terminal 1, 6, 4) in good 
condition?
YES : Go to Step 5.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. 

STEP 5. Retest the system
Check that the external input is normal.
Q: Is the check result normal?

YES : The trouble can be an intermittent malfunction (Refer 

to GROUP 00, How to use 
Troubleshooting/inspection Service Points, How to 
Cope with Intermittent Malfunction 

P.00-15

).

NO :  Replace the audio and video adaptor.

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Inspection Procedure 12: Check the CAN box unit power supply circuit.

CAUTION

Whenever the CAN box unit is replaced, ensure 
that the power supply circuit and the grounding 
circuit are normal. (Check that the voltage is 10 V 
or more.)

AC307771

CAN Box Unit Power Supply Circuit

ACC
RELAY 2

ETACS-
ECU

FUSIBLE
LINK

36

FUSIBLE
LINK

37

CAN BOX UNIT

RELAY BOX
 ENGINE 
 COMPARTMENT

AB

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.

TECHNICAL DESCRIPTION (COMMENT)

If the CAN box unit functions do not work at all, the 
CAN box unit power supply system, ground system, 
or CAN box unit may have a problem.

.

TROUBLESHOOTING HINTS

• The wiring harness or connectors may have 

loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector

• The CAN box unit may be defective

DIAGNOSIS

Required Special Tools:

• MB991223: Harness Set

• MB992006: Extra Fine Probe

STEP 1. Check CAN box unit connectors C-13 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is CAN box unit connectors C-13 in good condition?

YES : Go to Step 2.
NO :  Repair or replace the damaged component(s). Refer 

to GROUP 00E, Harness Connector Inspection 

P.00E-2

.

STEP 2. Check the ground circuit to the CAN box unit. 
Measure the resistance at CAN box unit connectors C-13.
(1) Disconnect CAN box unit connector C-13 and measure the 

resistance available at the wiring harness side of the 
connector.

(2) Measure the resistance value between CAN box unit 

connector C-13 terminal 1 and ground.

• The resistance should be 2 ohms or less.

Q: Is the measured resistance 2 ohms or less?

YES : Go to Step 4.
NO :  Go to Step 3.

AC703148AO

Connectors: C-13, C-17

C-13

C-17

ACA02655AE

Connectors: C-307, C-309, C-315, C-317

C-307 (B)

C-309 (B)

C-315

C-317

AC702818 BF

Connector C-13 
(Harness side)

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STEP 3. Check the wiring harness between CAN box unit 
connector C-13 (terminal 1) and the ground.

• Check the ground wires for open circuit.

Q: Is the wiring harness between CAN box unit connector 

C-13 (terminal 1) and the ground in good condition?
YES : No action is necessary and testing is complete.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary.

STEP 4. Check the battery power supply circuit to the CAN 
box unit. Measure the voltage at CAN box unit connectors 
C-13.
(1) Disconnect CAN box unit connectors C-13 measure the 

voltage available at the wiring harness side of the 
connector.

(2) Measure the voltage between CAN box unit connector C-13 

terminal 2 and ground.

• OK: The voltage should measure approximately 

12 volts (battery positive voltage).

Q: Is the measured voltage approximately 12 volts (battery 

positive voltage)?
YES : Go to Step 6.
NO :  Go to Step 5.

STEP 5. Check the wiring harness between CAN box unit 
connector C-13 (terminal 2) and fusible link (36).

• Check the power supply line for open circuit and short cir-

cuit.

NOTE: Also check intermediate connector C-17 and 
ETACS-ECU connectors C-307 and C-317 for loose, corroded, 
or damaged terminals, or terminals pushed back in the connec-
tor. If intermediate connector C-17 and ETACS-ECU connector 
C-307 or C-317 is damaged, repair or replace the connector as 
described in GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between CAN box unit connector 

C-13 (terminal 2) and fusible link (36) in good condition?
YES : No action is necessary and testing is complete.
NO :  The wiring harness may be damaged or the 

connector(s) may have loose, corroded or damaged 
terminals, or terminals pushed back in the connector. 
Repair the wiring harness as necessary. The system 
should communicate with the CAN box unit normally.

AC702831AW

Connector C-13 
(Harness side)