Mitsubishi Outlander GS45X. Manual - part 1169

DIAGNOSIS

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-43

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 transmitter and recheck the 
diagnostic trouble code.
Register the keyless ID (Refer to 

P.42C-10

), and recheck if the 

DTC is set.
(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 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

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WIRELESS CONTROL MODULE (WCM)

42C-44

DTC B2416: ECU internal error

.

DTC SET CONDITION

WCM sets DTC B2416 when it determines an abnor-
mal status within itself.

.

TECHNICAL DESCRIPTION (COMMENT)

WCM determines that the abnormality is present, if 
the data abnormality is found when the ignition 
switch is turned ON and then EEPROM is written.

.

TROUBLESHOOTING HINTS

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)

Recheck for diagnostic trouble code.
Check again if the DTC is set to the WCM.

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) Erase the DTC.
(3) Turn the ignition switch from "LOCK" (OFF) position to "ON" 

position.

(4) Check if DTC is set.
(5) 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 trouble can be an intermittent malfunction (Refer 

to GROUP 00 

− How to use 

Troubleshooting/inspection Service Points 

− How to 

Cope with Intermittent Malfunction 

P.00-15

).

ZC501967

AC404789

AC701411AB

MB991824

MB991827

MB991910

Data link 
connector

DIAGNOSIS

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WIRELESS CONTROL MODULE (WCM)

42C-45

DTC C1608: EEPROM error

CAUTION

If there is any problem in the CAN bus lines, an incorrect 
diagnostic trouble code may be set. Prior to this diagno-
sis, diagnose the CAN bus lines (Refer to GROUP 54C, 
Trouble code diagnosis 

P.54C-16

).

.

DTC SET CONDITION

WCM incorporates EEPROM (nonvolatile memory), and that 
EEPROM stores the TPMS, WCM and immobilizer information. 
When the data in EEPROM is failed, this code is set.

.

TROUBLESHOOTING HINTS

The most likely causes for this DTC to set are:

• Damaged wiring harness and connector

• 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 

STEP 1. Using scan tool MB991958, diagnose the CAN bus 
line.
Use scan tool to diagnose the CAN bus lines.
Q: Is the check result normal?

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

− 

CAN Bus Diagnostics table 

P.54C-10

). On 

completion, go to Step 2.

STEP 2. Diagnostic trouble code check
(1) Turn the ignition switch to the "LOCK" (OFF) position.
(2) Turn the ignition switch to the "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC C1608 set?

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

P.42C-99

). Then go to Step 3.

NO :  The procedure is complete.

DIAGNOSIS

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WIRELESS CONTROL MODULE (WCM)

42C-46

STEP 3. Diagnostic trouble code check
(1) Turn the ignition switch to the "LOCK" (OFF) position.
(2) Turn the ignition switch to the "ON" position.
(3) Check if the DTC is set.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC C1608 set?

YES : Start over at Step 1.
NO :  The procedure is complete.

DTC C1900: No registration

CAUTION

If there is any problem in the CAN bus lines, an incorrect 
diagnostic trouble code may be set. Prior to this diagno-
sis, diagnose the CAN bus lines (Refer to GROUP 54C, 
Trouble code diagnosis 

P.54C-17

).

.

DTC SET CONDITION

When the ID registration information of the TPMS transmitter is 
not stored in WCM, and/or when WCM is replaced with a new 
one, this code is set. If the ID registration mode is terminated 
forcibly or time-out after one or more TPMS transmitters are 
registered in the ID registration mode, the ID information in the 
WCM is erased, and this diagnostic trouble code is set.

.

TROUBLESHOOTING HINTS

The most likely causes for this DTC to set are:

• Damaged wiring harness and connector

• Malfunction of TPMS transmitter

• Malfunction of WCM

• ID code registration failed

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 

STEP 1. Using scan tool MB991958, diagnose the CAN bus 
line.
Use scan tool to diagnose the CAN bus lines.
Q: Is the check result normal?

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

− 

CAN Bus Diagnostics table 

P.54C-17

). On 

completion, go to Step 2.