Mitsubishi Outlander GS45X. Manual - part 1256

 

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Mitsubishi Outlander GS45X. Manual - part 1256

 

 

TROUBLESHOOTING

TSB Revision

LOCAL INTERCONNECT NETWORK (LIN)

54B-17

STEP 3. Check the wiring harness between lighting control 
sensor connector D-39 (terminal 2) and the ground.

• Check the ground wires for open circuit.

Q: Is the wiring harness between lighting control sensor 

connector D-39 (terminal 2) 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 
lighting control sensor. Measure the voltage at lighting 
control sensor connector D-39.
(1) Disconnect lighting control sensor connector D-39 measure 

the voltage available at the wiring harness side of the 
connector.

(2) Measure the voltage between lighting control sensor 

connector D-39 terminal 2 and ground.

• 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 ETACS-ECU 
connector C-317 (terminal 10) and lighting control sensor 
connector D-39 (terminal 1).

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

and short circuit.

Q: Is the wiring harness between ETACS-ECU connector 

C-317 (terminal 10) and lighting control sensor 
connector D-39 (terminal 1) 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.

AC608254 EZ

Connector D-39
(Harness side)

TROUBLESHOOTING

TSB Revision

LOCAL INTERCONNECT NETWORK (LIN)

54B-18

STEP 6. Check the wiring harness between ETACS-ECU 
connector C-316 (terminal 1) and lighting control sensor 
connector D-39 (terminal 3).

• Check the communication line for open circuit.

Q: Is the wiring harness between ETACS-ECU connector 

C-316 (terminal 1) and lighting control sensor connector 
D-39 (terminal 3) 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.

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) Connect scan tool MB991958. Refer to "How to connect the 

Scan Tool (M.U.T.-III) 

P.54B-4

."

(2) Erase the DTC.
(3) Turn the ignition switch to the "ON" position.
(4) Check if the DTC is set.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?

YES : Replace the lighting control sensor.
NO :  A poor connection, open circuit or other intermittent 

malfunction is present in the LIN bus lines between 
the lighting control sensor and the ETACS-ECU 
(Refer to GROUP 00, How to Cope with Intermittent 
Malfunction 

P.00-15

).

AC608435

Data link connector

MB991827

MB991824

MB991910

AB

TROUBLESHOOTING

TSB Revision

LOCAL INTERCONNECT NETWORK (LIN)

54B-19

DTC U1109: Column SW LIN timeout

CAUTION

Before replacing the ECU, ensure that the com-
munication circuit is normal.

.

TROUBLE JUDGMENT

The ETACS-ECU receives signal from the column 
switch. If signal cannot be received at all, DTC 
U1109 will be set.

.

TECHNICAL DESCRIPTION (COMMENT)

Current trouble

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

lines between the column switch and the 
ETACS-ECU, the power supply system of the col-
umn switch, or the column switch itself may be 
defective.

Past trouble

• If DTC U1109 is stored as a past trouble, carry 

out diagnosis with particular emphasis on wiring 
and connector(s) in the LIN bus line between the 
column switch and the ETACS-ECU, and the 
power supply system of the column switch. For 
diagnosis procedures, refer to GROUP 00, How 
to Use Troubleshooting/Inspection Service Points 
− How to Treat Past Trouble 

P.00-17

.

.

TROUBLESHOOTING HINTS

• The column switch may be defective.

• The wiring harness or connectors may have 

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

Column Switch LIN Communication Circuit

ETACS-
ECU

INTERFACE
CIRCUIT

LIN DRIVE
CIRCUIT

COLUMN
SWITCH

COLUMN-ECU

FUSE     

8

AC702922 AE

Connector: C-212

ACA02655AQ

Connectors: C-301, C-317

C-301

C-317

TROUBLESHOOTING

TSB Revision

LOCAL INTERCONNECT NETWORK (LIN)

54B-20

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-301 and C-317 
and column switch connector C-212 for loose, corroded or 
damaged terminals, or terminals pushed back in the 
connector.
Q: Are ETACS-ECU connectors C-301 and C-317 and 

column switch connector C-212 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 column switch. 
Measure the resistance at column switch connector C-212.
(1) Disconnect column switch connector C-212 and measure 

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

(2) Measure the resistance value between column switch 

connector C-212 terminal 4 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.

STEP 3. Check the wiring harness between column switch 
connector C-212 (terminal 4) and the ground.

• Check the ground wires for open circuit.

Q: Is the wiring harness between column switch connector 

C-212 (terminal 4) 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.

AC702818 EC

Connector C-212
(Harness side)

 

 

 

 

 

 

 

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