Mitsubishi Outlander GS45X. Manual - part 1255

TROUBLESHOOTING

TSB Revision

LOCAL INTERCONNECT NETWORK (LIN)

54B-13

STEP 5. Check the wiring harness between ETACS-ECU 
connector C-315 (terminal 10) and power window main 
switch connector E-19 (terminal 5).

• Check the power supply line (battery supply) for open circuit 

and short circuit.

NOTE: Also check intermediate connector C-126 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector C-126 is damaged, repair 
or replace the connector as described in GROUP 00E, Harness 
Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between ETACS-ECU connector 

C-315 (terminal 10) and power window main switch 
connector E-19 (terminal 5) 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 6. Check the wiring harness between ETACS-ECU 
connector C-301 (terminal 1) and power window main 
switch connector E-19 (terminal 7).

• Check the communication line for open circuit.

NOTE: Also check intermediate connector C-127 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector C-127 is damaged, repair 
or replace the connector as described in GROUP 00E, Harness 
Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between ETACS-ECU connector 

C-301 (terminal 1) and power window main switch 
connector E-19 (terminal 7) in good condition?
YES : Go to Step 7.
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. Go to Step 7.

TROUBLESHOOTING

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LOCAL INTERCONNECT NETWORK (LIN)

54B-14

STEP 7. Recheck for diagnostic trouble code.
Check again if the DTC is set to the ETACS-ECU.

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Ensure that the ignition switch is at the "LOCK" (OFF) 

position.

(2) Start up the personal computer.
(3) Connect special tool MB991827 to special tool MB991824 

and the personal computer.

(4) Connect special tool MB991910 to special tool MB991824.
(5) Connect special tool MB991910 to the data link connector.
(6) Erase the DTC.
(7) Turn the ignition switch to the "ON" position.
(8) Check if the DTC is set.
(9) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Replace the power window main switch.
NO :  A poor connection, open circuit or other intermittent 

malfunction is present in the LIN bus lines between 
the power window main switch and the ETACS-ECU 
(Refer to GROUP 00, How to Cope with Intermittent 
Malfunction 

P.00-15

).

ZC501967

AC404789

AC702802

MB991824

MB991827

MB991910

Data link

connector

AB

TROUBLESHOOTING

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LOCAL INTERCONNECT NETWORK (LIN)

54B-15

DTC U0231: Lighting control sensor LIN timeout <Vehicles with auto light function>

CAUTION

Before replacing the ECU, ensure that the communication circuit is normal.

.

TROUBLE JUDGMENT

The ETACS-ECU receives signal from the lighting 
control sensor. If signal cannot be received at all, 
DTC U0231 will be set.

.

TECHNICAL DESCRIPTION (COMMENT)

Current trouble

• Connector(s) or wiring harness in the LIN bus 

lines between the lighting control sensor and the 
ETACS-ECU, the power supply system of the 
lighting control sensor, or the lighting control sen-
sor itself may be defective.

FUSE     

8

Lighting Control Sensor LIN Communication Circuit

ETACS-
ECU

INTERFACE 
CIRCUIT

LIN DRIVE 
CIRCUIT

LIGHTING 
CONTROL 
SENSOR

ACA02655AP

Connectors: C-316, C-317

C-317

C-316

AC803018

AB

Connector: D-39

TROUBLESHOOTING

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LOCAL INTERCONNECT NETWORK (LIN)

54B-16

Past trouble

• If DTC U0169 is stored as a past trouble, carry 

out diagnosis with particular emphasis on wiring 
and connector(s) in the LIN bus line between the 
lighting control sensor and the ETACS-ECU, and 
the power supply system of the lighting control 
sensor.

.

TROUBLESHOOTING HINTS

• The lighting control sensor may be defective.

• The wiring harness or connectors may have 

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

DIAGNOSIS

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: Vehicles Communication Interface (V.C.I.)

• MB991827: M.U.T.-III USB Cable

• MB991910: M.U.T.-III Main Harness A (Vehicles with 

CAN communication system)

STEP 1. Check ETACS-ECU connectors C-316 and C-317 
and lighting control sensor connector D-39 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Are ETACS-ECU connectors C-316 and C-317 and 

lighting control sensor connector D-39 in good 
condition?
YES : Go to Step 2.
NO :  Repair or replace the damaged component(s). Go to 

Step 7.

STEP 2. Check the ground circuit to the lighting control 
sensor. Measure the resistance at lighting control sensor 
connector D-39.
(1) Disconnect power window main switch connector D-39 and 

measure the resistance available at the wiring harness side 
of the connector.

(2) Measure the resistance value between power window main 

switch connector D-39 terminal 2 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.

AC608255 DE

Connector D-39
(Harness side)