Mitsubishi Outlander GS45X. Manual - part 1259

TROUBLESHOOTING

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STEP 12. 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 security alarm siren.
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

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Code No.U1007 Theft-alarm sensor LIN timeout <Vehicles with theft-alarm sensor>

CAUTION

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

INTERFACE
CIRCUIT

LIN DRIVE
CIRCUIT

ETACS-
ECU

FUSE     

8

THEFT-ALARM
SENSOR  

Theft-Alarm Sensor LIN Communication Circuit

AC901075BI

Connector: C-36

ACA02655AP

Connectors: C-316, C-317

C-317

C-316

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.

TROUBLE JUDGMENT

The ETACS-ECU receives signal from the 
theft-alarm sensor. If signal cannot be received at all, 
DTC U1007 will be set.

.

TECHNICAL DESCRIPTION (COMMENT)

Current trouble

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

lines between the theft-alarm sensor and the 
ETACS-ECU, the power supply system of the 
power window main switch, or the theft-alarm 
sensor itself may be defective.

Past trouble

• If DTC U1007 is stored as a past trouble, carry 

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

STEP 1. Check ETACS-ECU connectors C-316 and C-317 
and theft-alarm sensor connector D-136 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Are ETACS-ECU connectors C-316 and C-317 and 

theft-alarm sensor connector D-136 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 theft-alarm sensor. 
Measure the resistance at theft-alarm sensor connector 
D-136.
(1) Disconnect theft-alarm sensor connector D-136 and 

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

(2) Measure the resistance value between theft-alarm sensor 

connector D-136 terminal 3 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.

AC901079

Connectors: D-135, D-136

AZ

D-135

D-136 (B)

AC608255 DH

Connector D-136
(Harness side)

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STEP 3. Check the wiring harness between theft-alarm 
sensor connector D-136 (terminal 3) and the ground.

• Check the ground wires for open circuit.

NOTE: Also check intermediate connector D-135 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the 
connector. If intermediate connector D-135 is damaged, repair 
or replace the connector as described in GROUP 00E, Harness 
Connector Inspection 

P.00E-2

.

Q: Is the wiring harness between theft-alarm sensor 

connector D-136 (terminal 3) 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 theft-alarm sensor. Measure the 
voltage at theft-alarm sensor connector D-136.
(1) Disconnect theft-alarm sensor connector D-136 measure 

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

(2) Measure the voltage between theft-alarm sensor connector 

D-136 terminal 3 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.

AC608254 FD

Connector D-136
(Harness side)