Mitsubishi Evolution X. Manual — part 606
DIAGNOSIS
TSB Revision
WIRELESS CONTROL MODULE (WCM)
42C-41
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,
).
STEP 2. Check receiver antenna assembly connector D-14
and WCM connector C-07 for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Is the receiver antenna assembly connector D-14 and
WCM connector C-07 in good condition?
YES : Go to Step 3.
NO : Repair the defective connector.
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
DIAGNOSIS
TSB Revision
WIRELESS CONTROL MODULE (WCM)
42C-42
STEP 3. Check the wiring harness between the receiver
antenna assembly connector D-14 (terminal Nos. 8, 12) and
the WCM connector C-07 (terminal Nos. 8, 12) for open
circuit.
(1) Disconnect reciever anntena assembly connector D-14 and
WCM connector C-07, and check the wiring harness.
(2) Check the wiring harness between reciever anntena
assembly connector D-14 (terminal No.8) and WCM
connector C-07 (terminal No.8).
OK: Continuity exists (2
Ω or less)
(3) Check the wiring harness between reciever anntena
assembly connector D-14 (terminal No.12) and WCM
connector C-07 (terminal No.12).
OK: Continuity exists (2
Ω or less)
Q: Is the wiring harness between receiver antenna
assembly connector D-14 (terminal Nos. 8, 12) and the
WCM connector C-07 (terminal Nos. 8, 12) in good
condition?
YES : Go to Step 4.
NO (receiver antenna assembly connector D-14 terminal
No.8
− WCM connector C-07 terminal No.8.) : Repair the
wiring harness between receiver antenna assembly
connector D-14 (terminal No.8) and WCM connector
C-07 (terminal No.8).
NO (receiver antenna assembly connector D-14 terminal
No.12
− WCM connector C-07 terminal No.12.) : Repair
the wiring harness between receiver antenna
assembly connector D-14 (terminal No.12) and WCM
connector C-07 (terminal No.12).
AC709707 HT
Harness side: D-14
Harness side: C-07
AC709707 HU
Harness side: D-14
Harness side: C-07
DIAGNOSIS
TSB Revision
WIRELESS CONTROL MODULE (WCM)
42C-43
STEP 4. Check the wiring harness between the receiver
antenna assembly connector D-14 (terminal Nos. 8, 12) and
the ground for short circuit.
(1) Disconnect reciever anntena assembly connector D-14,
and check the wiring harness.
(2) Check the wiring harness between reciever anntena
assembly connector D-14 (terminal No.8) and and ground
OK: No continuity
(3) Check the wiring harness between reciever anntena
assembly connector D-14 (terminal No.12) and and ground
OK: No continuity
Q: Is the wiring harness between receiver antenna
assembly connector D-14 (terminal Nos. 8, 12) and the
ground in good condition?
YES : Go to Step 5.
NO (receiver antenna assembly connector D-14 terminal
No.8
− ground.) : Repair the wiring harness between
receiver antenna assembly connector D-14 (terminal
No.8) and the ground.
NO (receiver antenna assembly connector D-14 terminal
No.12
− ground.) : Repair the wiring harness between
receiver antenna assembly connector D-14 (terminal
No.12) and the ground.
STEP 5. Replace the receiver antenna assembly, 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 WCM and register the ID codes (Refer to
).
NO : The procedure is complete.
AC709707FY
Harness side: D-14
AC709707FX
Harness side: D-14
DIAGNOSIS
TSB Revision
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
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
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
AC608435
Data link connector
MB991827
MB991824
MB991910
AB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст