Mitsubishi Evolution X. Manual — part 609
DIAGNOSIS
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WIRELESS CONTROL MODULE (WCM)
42C-53
•
Terminal No.12
− body ground.
OK: No continuity
Q: Is the check result normal?
YES : Go to Step 5.
NO (terminal No.1
− body ground.) : The wiring harness
between D-14 receiver antenna assembly connector
terminal No.1 and C-07 WCM connector terminal
No.1 is shorted to ground. Repair the wiring
harness.and then register the ID codes. (Refer to
.) Then go to Step 8.
NO (terminal No.3
− body ground.) : The wiring harness
between D-14 receiver antenna assembly connector
terminal No.3 and C-07 WCM connector terminal
No.3 is shorted to ground. Repair the wiring
harness.and then register the ID codes. (Refer to
.) Then go to Step 8.
NO (terminal No.5
− body ground.) : The wiring harness
between D-14 receiver antenna assembly connector
terminal No.5 and C-07 WCM connector terminal
No.5 is shorted to ground. Repair the wiring
harness.and then register the ID codes. (Refer to
.) Then go to Step 8.
NO (terminal No.8
− body ground.) : The wiring harness
between D-14 receiver antenna assembly connector
terminal No.8 and C-07 WCM connector terminal
No.8 is shorted to ground. Repair the wiring
harness.and then register the ID codes. (Refer to
.) Then go to Step 8.
NO (terminal No.12
− body ground.) : The wiring harness
between D-14 receiver antenna assembly connector
terminal No.12 and C-07 WCM connector terminal
No.12 is shorted to ground. Repair the wiring
harness.and then register the ID codes. (Refer to
.) Then go to Step 8.
AC709322 CC
Harness side: D-14
DIAGNOSIS
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WIRELESS CONTROL MODULE (WCM)
42C-54
STEP 5. Wiring harness check between C-07 WCM
connector and D-14 receiver antenna assembly connector.
(1) Disconnect C-07 WCM connector and D-14 receiver
antenna assembly connector.
(2) Measure at the connector side of C-07 WCM connector and
D-14 receiver antenna assembly connector.
(3) Measure the resistance between the terminals.
•
C-07 WCM connector terminal No.1
− D-14 receiver
antenna assembly connector terminal No.1.
•
C-07 WCM connector terminal No.3
− D-14 receiver
antenna assembly connector terminal No.3.
•
C-07 WCM connector terminal No.5
− D-14 receiver
antenna assembly connector terminal No.5.
•
C-07 WCM connector terminal No.8
− D-14 receiver
antenna assembly connector terminal No.8.
AC709322 CI
Harness side: D-14
Harness side: C-07
AC709322 CJ
Harness side: D-14
Harness side: C-07
AC709322 CK
Harness side: D-14
Harness side: C-07
AC709322 CL
Harness side: D-14
Harness side: C-07
DIAGNOSIS
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WIRELESS CONTROL MODULE (WCM)
42C-55
•
C-07 WCM connector terminal No.12
− D-14 receiver
antenna assembly connector terminal No.12.
OK: Continuity exists (2 ohms or less)
Q: Is the check result normal?
YES : Go to Step 6.
NO (C-07 WCM connector terminal No.1
− D-14 receiver
antenna assembly connector terminal No.1.) : An open
circuit is present in the wiring harness between C-07
WCM connector terminal No.1 and D-14 receiver
antenna assembly connector terminal No.1. Repair
the wiring harness.and then register the ID codes.
(Refer to
NO (C-07 WCM connector terminal No.3
− D-14 receiver
antenna assembly connector terminal No.3.) : An open
circuit is present in the wiring harness between C-07
WCM connector terminal No.3 and D-14 receiver
antenna assembly connector terminal No.3. Repair
the wiring harness.and then register the ID codes.
(Refer to
NO (C-07 WCM connector terminal No.5
− D-14 receiver
antenna assembly connector terminal No.5.) : An open
circuit is present in the wiring harness between C-07
WCM connector terminal No.5 and D-14 receiver
antenna assembly connector terminal No.5. Repair
the wiring harness.and then register the ID codes.
(Refer to
NO (C-07 WCM connector terminal No.8
− D-14 receiver
antenna assembly connector terminal No.8.) : An open
circuit is present in the wiring harness between C-07
WCM connector terminal No.8 and D-14 receiver
antenna assembly connector terminal No.8. Repair
the wiring harness.and then register the ID codes.
(Refer to
NO (C-07 WCM connector terminal No.12
− D-14 receiver
antenna assembly connector terminal No.12.) : An open
circuit is present in the wiring harness between C-07
WCM connector terminal No.12 and D-14 receiver
antenna assembly connector terminal No.12. Repair
the wiring harness.and then register the ID codes.
(Refer to
STEP 6. Receiver antenna assembly check
Register the ID codes. If the ID codes can not be registered for
all the four wheels, replace the receiver antenna assembly.
Q: Is the ID registration completed?
YES : Go to Step 8.
NO : Replace the receiver antenna assembly and register
the ID codes again (Refer to
). Then go to
Step 8.
AC709322 CM
Harness side: D-14
Harness side: C-07
DIAGNOSIS
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WIRELESS CONTROL MODULE (WCM)
42C-56
STEP 7. Check for TPMS transmitter.
Identify the TPMS transmitter which the DTC is set by TPMS
transmitter check (Refer to
NOTE: The TPMS transmitter which cannot be checked may
be faulty or the ID code may not be registered, thus do not
replace it, but register the ID code. If the transmitter is faulty, it
is replaced in the ID code registration process.
Q: Are there any TPMS transmitters which are identified?
YES : Among the checked TPMS transmitters, replace the
TPMS transmitters to which the DTC is set, and then
register the ID codes. (Refer to
.) Then go
to Step 8.
NO : Even when no transmitter is checked, register the ID
.) Then go to Step 8.
STEP 8. Diagnostic trouble code recheck after register the
ID codes
(1) Turn the ignition switch to the "ON" position.
(2) Check if the DTC is set.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC C1911, C1921, C1931, C1941, C1914, C1924,
C1934 or C1944 set?
YES : Replace the WCM and register the ID codes (Refer to
). Then start over at Step 1.
NO : The procedure is complete.
DTC C1913: Acceleration sensor abnormality 1
DTC C1923: Acceleration sensor abnormality 2
DTC C1933: Acceleration sensor abnormality 3
DTC C1943: Acceleration sensor abnormality 4
DTC C1914: Pressure sensor abnormality 1
DTC C1924: Pressure sensor abnormality 2
DTC C1934: Pressure sensor abnormality 3
DTC C1944: Pressure sensor abnormality 4
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
.
DTC SET CONDITION
DTC C1913, C1923, C1933, C1943
• The TPMS transmitter detects if the wheel is rotated by the
acceleration sensor and sends the signals to WCM. When
the TPMS transmitter judges that the acceleration sensor is
failed, the failure signal is send to WCM, and WCM sets this
code.
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