Mitsubishi Lancer Evolution X. Manual — part 35
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-165
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB992006: Extra Fine Probe
STEP 1. Check the wiring harness between ETACS-ECU
connector C-301 and body ground for a short to power
supply. Measure the voltage at ETACS-ECU connector
C-301.
CAUTION
A digital multimeter should be used. For details refer to
CAUTION
The test wiring harness should be used. For details refer to
(1) Disconnect ETACS-ECU connector C-301, and measure
the voltage at the wiring harness side of ETACS-ECU
connector.
(2) Turn the ignition switch to the ON position.
(3) Measure the voltage between ETACS-ECU connector
terminal 6 and body ground.
OK: 4.7 V or less
(4) Measure the voltage between ETACS-ECU connector
terminal 7 and body ground.
OK: 4.7 V or less
Q: Do all the voltages measure 4.7 V or less?
YES : Go to Step 2.
NO : Go to Step 13.
AC608178
TEST
HARNESS
Harness side: C-301
AL
AC608178
TEST
HARNESS
Harness side: C-301
AM
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-166
STEP 2. Check the wiring harness between joint connector
(CAN1) C-105 and combination meter connector C-04 for a
short to ground. Measure the resistance at joint connector
(CAN1) C-105.
(1) Disconnect joint connector (CAN1), and measure the
resistance at the wiring harness side of joint connector
(CAN1).
(2) Measure the resistance between joint connector (CAN1)
terminal 3 and body ground.
OK: 1 kΩ or more
(3) Measure the resistance between joint connector (CAN1)
terminal 14 and body ground.
OK: 1 kΩ or more
Q: Do all the resistances measure 1 kΩ or more?
YES <vehicles with KOS> : Go to Step 3.
YES <vehicles with WCM> : Go to Step 4.
NO (vehicles with KOS or WCM) : Go to Step 24.
AC608179
TEST
HARNESS
Harness side: C-105
BY
AC608179
Harness side: C-105
BZ
TEST
HARNESS
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-167
STEP 3. Check the wiring harness between joint connector
(CAN1) C-105 and KOS-ECU connector C-05 for a short to
ground. Measure the resistance at joint connector (CAN1)
C-105.
(1) Disconnect joint connector (CAN1), and measure the
resistance at the wiring harness side of joint connector
(CAN1).
(2) Measure the resistance between joint connector (CAN1)
terminal 9 and body ground.
OK: 1 kΩ or more
(3) Measure the resistance between joint connector (CAN1)
terminal 22 and body ground.
OK: 1 kΩ or more
Q: Do all the resistances measure 1 kΩ or more?
YES : Go to Step 5.
NO : Go to Step 25.
AC608179
TEST
HARNESS
Harness side: C-105
CA
AC608179
Harness side: C-105
CB
TEST
HARNESS
DIAGNOSIS
TSB Revision
CONTROLLER AREA NETWORK (CAN)
54C-168
STEP 4. Check the wiring harness between joint connector
(CAN1) C-105 and WCM connector C-07 for a short to
ground. Measure the resistance at joint connector (CAN1)
C-105.
(1) Disconnect joint connector (CAN1), and measure the
resistance at the wiring harness side of joint connector
(CAN1).
(2) Measure the resistance between joint connector (CAN1)
terminal 7 and body ground.
OK: 1 kΩ or more
(3) Measure the resistance between joint connector (CAN1)
terminal 20 and body ground.
OK: 1 kΩ or more
Q: Do all the resistances measure 1 kΩ or more?
YES : Go to Step 5.
NO : Go to Step 26.
AC608179
TEST
HARNESS
Harness side: C-105
CC
AC608179
Harness side: C-06
CD
TEST
HARNESS
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