Mitsubishi Outlander GS45X. Manual - part 1127

 

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Mitsubishi Outlander GS45X. Manual - part 1127

 

 

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-87

STEP 3. Check the wiring harness between KOS-ECU and 
each interior and exterior antenna.
Check the following wiring harnesses for open circuit and short 
to ground.

• Wiring harness between KOS-ECU connector C-102 (termi-

nal No. 40) and outside transmission antenna assembly 
(driver's side) connector D-131 (terminal No. 1)

• Wiring harness between KOS-ECU connector C-102 (termi-

nal No. 40) and outside transmission antenna assembly 
(front passenger's side) connector D-101 (terminal No. 1)

• Wiring harness between KOS-ECU connector C-102 (termi-

nal No. 40) and inside transmission antenna assembly 
(front) connector D-124 (terminal No. 1)

• Wiring harness between KOS-ECU connector C-102 (termi-

nal No. 40) and inside transmission antenna assembly 
(rear: front passenger's side) connector D-106 (terminal No. 
1)

• Wiring harness between KOS-ECU connector C-102 (termi-

nal No. 40) and outside transmission antenna assembly (lift-
gate) connector F-14 (terminal No. 3)

NOTE: Also check intermediate connectors C-22 and F-17 for 
loose, corroded, or damaged terminals, or terminals pushed 
back in the connector. If intermediate connectors C-22 and 
F-17 is damaged, repair or replace the damaged component(s) 
as described in GROUP 00E, Harness Connector Inspection 

P.00E-2

.

Q: Are the wiring harness between KOS-ECU connector 

C-102 and each interior and exterior antenna in good 
condition?
YES : 
Go to Step 4.
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 whether the diagnostic trouble code is 
reset.
(1) Erase the diagnostic trouble code.
(2) Turn the ignition switch from the LOCK (OFF) position to the 

ON position.

(3) Check if the diagnostic trouble code is set.
Q: Is the diagnostic trouble code set?

YES : Replace KOS-ECU and register the ID codes. (Refer 

to 

P.42B-188

.)

NO :  The procedure is complete.

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-88

DTC B2413: STL unit power voltage

CAUTION

• If the DTC B2413 is set, diagnose the CAN bus 

lines. If there is any fault in the CAN bus lines, 
an incorrect diagnostic trouble code may be 
set. In this case, the set DTC is not highly reli-
able.

• Whenever the steering lock unit (integrated in 

the key reminder switch) is replaced, ensure 
that the communication circuit is normal.

.

DTC SET CONDITION

If KOS-ECU detects an abnormality in power supply 
of the steering lock unit, KOS-ECU sets the DTC 
B2413.

.

TECHNICAL DESCRIPTION (COMMENT)

If an abnormality in power supply of the steering lock 
unit is detected when power supply of it is turned on, 
KOS-ECU determines that there is a problem. 

.

TROUBLESHOOTING HINTS

• Damaged wiring harness and connectors

• Malfunction of the steering lock unit (integrated 

into the key reminder switch)

• Malfunction of the KOS-ECU

ACA02759

 Key Reminder Switch and KOS-ECU Circuit

KOS-ECU

KEY
REMINDER
SWITCH

AB

AC702145

Connector: C-102

AB

AC702217 AB

Connector: C-211

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-89

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. Using scan tool MB991958, diagnose the CAN bus 
line.

CAUTION

To prevent damage to scan tool (MB991958), always turn 
the ignition switch to the "LOCK" (OFF) position before 
connecting or disconnecting scan tool (MB991958).
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?

YES : Go to Step 2.
NO :  Repair the CAN bus line. (Refer to GROUP 54C 

− 

Diagnosis 

P.54C-17

).

STEP 2. Check key reminder switch connector C-211 for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Is the key reminder switch connector C-211 in good 

condition?
YES : 
Go to Step 3.
NO :  Repair the defective connector.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link 
connector

DIAGNOSIS

TSB Revision

KEYLESS OPERATION SYSTEM (KOS)

42B-90

STEP 3. Check the power supply circuit to the key 
reminder switch. Measure the voltage at key reminder 
switch connector C-211.
NOTE: Check the power supply line for open circuit and short 
circuit.
(1) Disconnect the connector, and measure at the harness 

side.

(2) Turn the ignition push switch to the ON position.
(3) Measure the voltage between terminal No. 9 and ground.

• The voltage should measure 5 ± 0.5 volts.

Q: Is the measured voltage 5 

± 0.5 volts?

YES : Go to Step 4.
NO :  Check the KOS-ECU connector C-102 and the wiring 

harness between the KOS-ECU connector C-102 
(terminal No. 5) and the key reminder switch 
connector C-211 (terminal No. 9), and repair them 
if necessary. If it is normal, replace KOS-ECU and 
register the ID codes. (Refer to 

P.42B-15

.)

STEP 4. Check KOS-ECU connector C-102 for loose, 
corroded or damaged terminals, or terminals pushed back 
in the connector.
Q: Is the KOS-ECU connector C-102 in good condition?

YES : Go to Step 5.
NO :  Repair the defective connector.

STEP 5. Check the wiring harness between the key 
reminder switch connector C-211 (terminal No. 11) and the 
KOS-ECU connector C-102 (terminal No. 31).
Check the ground wires for open circuit.
Q: Is the wiring harness between key reminder switch 

connector C-211 (terminal No. 11) and the KOS-ECU 
connector C-102 (terminal No. 31) in good condition?
YES : 
Go to Step 6.
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. Replace the key reminder switch, and check 
whether the diagnostic trouble code is reset.
(1) Erase the DTC.
(2) Turn the ignition switch from the "LOCK" (OFF) position to 

the "ON" position.

(3) Check if the DTC is set.
Q: Is the DTC set?

YES : Replace KOS-ECU and register the ID codes. (Refer 

to 

P.42B-15

.)

NO :  The procedure is complete.

AC608812DY

Harness side: C-211

 

 

 

 

 

 

 

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