Mitsubishi Outlander GS45X. Manual - part 1164

 

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Mitsubishi Outlander GS45X. Manual - part 1164

 

 

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-23

DIAGNOSIS

Required Special Tools:

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

• MB991824: Vehicle 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. Register the VIN and recheck the diagnostic 
trouble code.
Register VIN in WCM (Refer to GROUP 00 

− How to Perform 

Vehicle Identification Number (VIN) Writing 

P.00-40

) and 

recheck if the DTC is set.
(1) Turn the ignition switch from the "LOCK" (OFF) position to 

the "ON" position.

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

YES : Replace WCM and register the ID codes. (Refer to 

P.42C-10

.)

NO :  The procedure is complete.

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link 
connector

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-24

DTC B1A08: Keyless/KOS key1 performance

 

DTC B1A09: Keyless/KOS key2 performance

 

DTC B1A0A: Keyless/KOS key3 performance

 

DTC B1A0B: Keyless/KOS key4 performance

 

DTC B1A0C: Keyless key 5 performance

 

DTC B1A0D: Keyless key 6 performance

 

DTC B1A0E: Keyless key 7 performance

 

DTC B1A0F: Keyless key 8 performance

CAUTION

When replacing the ECU, always check that the 
communication circuit is normal.

.

DTC SET CONDITION

The door locking/unlocking code is automatically 
updated every time the doors are locked (rolling 
code). WCM stores DTC B1A08, B1A09, B1A0A, 
B1A0B, B1A0C, B1A0D, B1A0E, or B1A0F when it 
receives wrong signal (rolling code out of synchroni-
zation) from the transmitter.

.

TECHNICAL DESCRIPTION (COMMENT)

• B1A08: WCM determines that the abnormality is 

present when the rolling code received from the 
transmitter 1 (the first transmitter registered in 
WCM) greatly differs from the rolling code stored 
in WCM.

• B1A09: WCM determines that the abnormality is 

present when the rolling code received from the 
transmitter 2 (the second transmitter registered in 
WCM) greatly differs from the rolling code stored 
in WCM.

• B1A0A: WCM determines that the abnormality is 

present when the rolling code received from the 
transmitter 3 (the third transmitter registered in 
WCM) greatly differs from the rolling code stored 
in WCM.

• B1A0B: WCM determines that the abnormality is 

present when the rolling code received from the 
transmitter 4 (the fourth transmitter registered in 
WCM) greatly differs from the rolling code stored 
in WCM.

• B1A0C: WCM determines that the abnormality is 

present when the rolling code received from the 
transmitter 5 (the fifth transmitter registered in 
WCM) greatly differs from the rolling code stored 
in WCM.

• B1A0D: WCM determines that the abnormality is 

present when the rolling code received from the 
transmitter 6 (the sixth transmitter registered in 
WCM) greatly differs from the rolling code stored 
in WCM.

• B1A0E: WCM determines that the abnormality is 

present when the rolling code received from the 
transmitter 7 (the seventh transmitter registered 
in WCM) greatly differs from the rolling code 
stored in WCM.

• B1A0F: WCM determines that the abnormality is 

present when the rolling code received from the 
transmitter 8 (the eighth transmitter registered in 
WCM) greatly differs from the rolling code stored 
in WCM.

.

TROUBLESHOOTING HINTS

• Rolling code out of synchronization

• Malfunction of the transmitter

• Malfunction of the WCM

DIAGNOSIS

STEP 1. Synchronize the rolling code and 
recheck the diagnostic trouble code.
(1) Synchronize the rolling code.

• Push the lock button or unlock button of trans-

mitter twice or more.

• If the keyless operation does not resume by 

the procedure above, register the key again 
(Refer to 

P.42C-112

).

(2) Recheck if the diagnostic trouble code is set.

a. Push the lock button or unlock button of 

transmitter.

b. Check if the diagnostic trouble code is set.

Q: Is the DTC set?

YES : 

Go to Step 2.

NO : 

The diagnosis is complete.

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-25

STEP 2. Check whether the diagnostic trouble 
code is reset.
Replace the transmitter by which the diagnostic trou-
ble code is set with a new one, register the key 
(Refer to 

P.42C-89

), and recheck if the diagnostic 

trouble code is set.
(1) Push the lock button or unlock button of 

transmitter.

(2) Check if the diagnostic trouble code is set.

Q: Is the DTC set?

YES : 

Replace WCM and register the ID codes 

(Refer to 

P.00-15

).

NO : 

The diagnosis is complete.

Code No.B1A10 Keyless/KOS key 1 low battery

 

Code No.B1A11 Keyless/KOS key 2 low battery

 

Code No.B1A12 Keyless/KOS key 3 low battery

 

Code No.B1A13 Keyless/KOS key 4 low battery

 

Code No.B1A14 Keyless key 5 low battery

 

Code No.B1A15 Keyless key 6 low battery

 

Code No.B1A16 Keyless key 7 low battery

 

Code No.B1A17 Keyless key 8 low battery

CAUTION

When replacing the ECU, always check that the 
communication circuit is normal.

.

DIAGNOSTIC FUNCTION

WCM sets the diagnostic trouble code No. B1A10, 
B1A11, B1A12, B1A13, B1A14, B1A15, B1A16, or 
B1A17 when it receives low battery voltage signal 
from the transmitter.

.

JUDGEMENT CRITERIA

• B1A10: WCM determines that the abnormality is 

present when it receives low battery voltage sig-
nal from the transmitter 1 (the first transmitter 
registered in WCM) five consecutive times.

• B1A11: WCM determines that the abnormality is 

present when it receives low battery voltage sig-
nal from the transmitter 2 (the second transmitter 
registered in WCM) five consecutive times.

• B1A12: WCM determines that the abnormality is 

present when it receives low battery voltage sig-
nal from the transmitter 3 (the third transmitter 
registered in WCM) five consecutive times.

• B1A13: WCM determines that the abnormality is 

present when it receives low battery voltage sig-
nal from the transmitter 4 (the fourth transmitter 
registered in WCM) five consecutive times.

• B1A14: WCM determines that the abnormality is 

present when it receives low battery voltage sig-
nal from the transmitter 5 (the fifth transmitter 
registered in WCM) five consecutive times.

• B1A15: WCM determines that the abnormality is 

present when it receives low battery voltage sig-
nal from the transmitter 6 (the sixth transmitter 
registered in WCM) five consecutive times.

• B1A16: WCM determines that the abnormality is 

present when it receives low battery voltage sig-
nal from the transmitter 7 (the seventh transmitter 
registered in WCM) five consecutive times.

• B1A17: WCM determines that the abnormality is 

present when it receives low battery voltage sig-
nal from the transmitter 8 (the eighth transmitter 
registered in WCM) five consecutive times.

.

PROBABLE CAUSES

• Battery failure in the transmitter

• Malfunction of the transmitter

• Malfunction of WCM

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-26

DIAGNOSTIC PROCEDURE

STEP 1. Replace the battery in the transmitter 
and recheck the diagnostic trouble code.
Replace the battery in the transmitter with a new 
one, and recheck if the diagnostic trouble code is set.
(1) Replace the battery in the transmitter.
(2) Use the transmitter to lock/unlock the doors.
(3) Check if the diagnostic trouble code is set.

Q: Is the diagnostic trouble code set?

YES : 

Go to Step 2.

NO : 

The procedure is complete. (Discharged 
battery) 

STEP 2. Replace the transmitter and recheck the 
diagnostic trouble code.
Replace the transmitter with a new one, register the 
encrypted code and the keyless entry secret code 
(Refer to 

P.00-15

.), and recheck if the diagnostic 

trouble code is set.
(1) Use the transmitter to lock/unlock the doors.
(2) Check if the diagnostic trouble code is set.

Q: Is the diagnostic trouble code set?

YES : 

Replace WCM and register the ID codes. 

(Refer to 

P.00-15

.)

NO : 

The procedure is complete.

DTC B1A24: Key ID not registered

CAUTION

• When the DTC B1A24 is set, be sure to diag-

nose the CAN bus line.

• When replacing the ECU, always check that 

the communication circuit is normal.

.

DTC SET CONDITION

WCM sets DTC B1A24 when the encrypted code 
was not registered in it. 

.

TECHNICAL DESCRIPTION (COMMENT)

WCM determines that the abnormality is present, if 
the ignition key's key ID is not registered in WCM 
when the ignition switch is turned ON.

.

TROUBLESHOOTING HINTS

• Key ID not registered

• Malfunction of the ignition key

• Malfunction of WCM

DIAGNOSIS

Required Special Tools:

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

• MB991824: Vehicle 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)

 

 

 

 

 

 

 

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