Mitsubishi Outlander GS45X. Manual — part 1165
DIAGNOSIS
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WIRELESS CONTROL MODULE (WCM)
42C-27
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,
).
TEP 2. Register the key ID and recheck the diagnostic
trouble code.
Register the key ID of the ignition key (refer to
recheck if the DTC is set.
(1) Turn the ignition switch from the "LOCK" (OFF) position to
the "ON" position.
(2) Check if the DTC is set.
Q: Is the DTC set?
YES : Replace WCM and register the ID codes. (Refer to
.)
NO : The procedure is complete.
ZC501967
AC404789
AC701411AB
MB991824
MB991827
MB991910
Data link
connector
DIAGNOSIS
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WIRELESS CONTROL MODULE (WCM)
42C-28
DTC B1A25: Key ID unmatched
CAUTION
When the DTC B1A25 is set, be sure to diagnose
the CAN bus line.When replacing the ECU,
always check that the communication circuit is
normal.
.
DTC SET CONDITION
WCM sets DTC B1A25 when the received key ID is
different from the one registered in it.
.
TECHNICAL DESCRIPTION (COMMENT)
WCM determines that the abnormality is present, if
the key ID for the ignition key does not match the one
registered in WCM when the ignition switch is turned
ON.
.
TROUBLESHOOTING HINTS
• Malfunction of the ignition key
• Accessory key not registered
• Accessory WCM not registered
• Key is registered to another vehicle
• 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)
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,
).
ZC501967
AC404789
AC701411AB
MB991824
MB991827
MB991910
Data link
connector
DIAGNOSIS
TSB Revision
WIRELESS CONTROL MODULE (WCM)
42C-29
STEP 2. Register the key ID and recheck the diagnostic
trouble code.
Register the key ID of the ignition key (refer to
recheck if the DTC is set.
(1) Turn the ignition switch from the "LOCK" (OFF) position to
the "ON" position.
(2) Check if the DTC is set.
Q: Is the DTC set?
YES : Go to Step 3.
NO : The procedure is complete.
STEP 3. Replace the ignition key and recheck the
diagnostic trouble code.
Replace the ignition key by which the DTC is set with the other
key, and recheck if the DTC is set.
(1) Turn the ignition switch from the "LOCK" (OFF) position to
the "ON" position.
(2) Check if the DTC is set.
Q: Is the DTC set?
YES : Go to Step 4.
NO : Go to Step 5.
STEP 4. Register the key ID and recheck the diagnostic
trouble code.
Register the key ID of the ignition key (refer to
recheck if the DTC is set.
(1) Turn the ignition switch from the "LOCK" (OFF) position to
the "ON" position.
(2) Check if the DTC is set.
Q: Is the DTC set?
YES : Go to Step 5.
NO : The procedure is complete.
STEP 5. Replace the ignition key and recheck the
diagnostic trouble code.
Replace the ignition key with a new one, register the key ID and
keyless ID of the new key, (refer to
), and recheck if
the DTC is set.
(1) Turn the ignition switch from the "LOCK" (OFF) position to
the "ON" position.
(2) Check if the DTC is set.
Q: Is the DTC set?
YES : Replace WCM and register the ID codes (Refer to
).
NO : The procedure is complete.
DIAGNOSIS
TSB Revision
WIRELESS CONTROL MODULE (WCM)
42C-30
DTC B1A28: Engine control module authenticate error
CAUTION
• When the DTC B1A28 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 B1A28 when the ignition key certifi-
cation result and the engine control module starting
condition do not match.
.
TECHNICAL DESCRIPTION (COMMENT)
WCM determines that the abnormality is present, if
the key certification result and the engine control
module starting condition do not match after the
engine start permission communication is com-
pleted.
.
TROUBLESHOOTING HINTS
• Malfunction of CAN bus line
• Malfunction of WCM
• Engine control module malfunction
• VIN registered in engine control module
unmatched
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,
).
ZC501967
AC404789
AC701411AB
MB991824
MB991827
MB991910
Data link
connector
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