Mitsubishi Colt Ralliart. Manual — part 415
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-168
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
Step 7. Retest the system.
Check that the fog lamp illuminate normally.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
use Troubleshooting/inspection Service
Points
− How to Cope with Intermittent
).
NO :
Replace the fog lamp(s).
INSPECTION PROCEDURE K-3: The fog lamp indicator does not illuminate normally.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the fog lamp indicator does not illuminate normally,
connector(s), wiring harness in the CAN bus lines,
the ETACS-ECU or the combination meter may be
defective.
POSSIBLE CAUSES
• Malfunction of the ETACS-ECU
• Malfunction of the combination meter
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Check the fog lamps.
When the fog lamp switch is operated, check that the
fog lamps illuminate/go off normally.
Q: Is the check result normal?
YES :
Go to Step2.
NO :
Refer to Inspection Procedure K-2 "Any of
the fog lamps does not illuminate
."
Step 2. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.
Q: Is the check result normal?
YES :
Go to Step3.
NO :
Repair the CAN bus line (Refer to GROUP
54D, Diagnosis
INPUT SIGNAL
ETACS-ECU
COMBINATION
METER
CAN COMMUNICATION LINE
(CAN_L LINE)
CAN COMMUNICATION LINE
(CAN_H LINE)
FOG LAMP SWITCH
Fog Lamp Indicator Lamp Circuit
Main
Index
Group
TOC
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-169
Step 3. M.U.T.-III other system diagnosis code
Check whether the combination meter-related diag-
nosis code is set.
Q: Is the diagnosis code set?
YES :
Diagnose the combination meter (Refer to
GROUP 54A
− Troubleshooting
NO :
Go to Step4.
Step 4. ECU check by using the SWS monitor
Check that the power supply and earth lines to the
ETACS-ECU and the SWS communication lines are
normal.
• Ignition switch: OFF
ECU TO BE CHECKED
• ETACS ECU
OK: "OK" is displayed on the "ETACS ECU"
menu.
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Refer to Inspection Procedure A-3
"Communication with the ETACS-ECU is
not possible
Step 5. M.U.T.-III actuator test
Perform the actuator test for the combination meter,
and check that the fog lamp indicator illuminates
(Refer to GROUP 54A
− Combination Meter
Q: Is the check result normal?
YES :
Replace the ETACS-ECU.
NO :
Replace the combination meter.
Main
Index
Group
TOC
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-170
FLASHER TIMER
INSPECTION PROCEDURE L-1: The turn-signal lamps do not illuminate.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If all the turn-signal lamps do not illuminate, the igni-
tion switch (IG1), the turn-signal lamp switch input
circuit or the ETACS-ECU may be defective.
POSSIBLE CAUSES
• Malfunction of the column switch
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Check that the hazard warning lamps
operate.
Check that the hazard warning lamps illuminate nor-
mally.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Go to Step 2.
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Gray R : Red P : Pink V : Violet
ETACS-ECU
TURN-SIGNAL
LAMP RELAY: LH
TURN-SIGNAL
LAMP RELAY: RH
· FRONT COMBINATION
LAMP (TURN: LH)
· SIDE TURN-SIGNAL
LAMP (LH)
REAR COMBINATION
LAMP (TURN: LH)
REAR COMBINATION
LAMP (TURN: RH)
· FRONT COMBINATION
LAMP (TURN: RH)
· SIDE TURN-SIGNAL
LAMP (RH)
FUSIBLE
LINK
1
Turn-Signal Lamp Power Supply Circuit
Main
Index
Group
TOC
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SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-171
Step 2. Connector check: B-134 ETACS-ECU
connector.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
Step 3. Voltage measurement at the B-134
ETACS-ECU connector.
(1) Remove the ETACS-ECU, and measure at the
junction block side.
(2) Voltage between B-134 ETACS-ECU connector
terminal No.5 and body earth
OK: System voltage
Q: Is the check result normal?
YES : .
Go to Step 7.
NO : .
Go to Step 4.
Step 4. Check the wiring harness between B-134
ETACS-ECU connector terminal No.5 to the
fusible link (1).
NOTE:
Prior to the wiring harness inspection, check junction
block connector B-108, and repair if necessary.
• Check the power supply line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
AC313826
Connector: B-134
AG
Junction block side
Junction block (Rear view)
AC313826
Connector: B-134
AG
Junction block side
Junction block (Rear view)
AC310507 FG
Connector B-134
(Junction block side)
AC313826
Connector: B-134
AG
Junction block side
Junction block (Rear view)
AC313824 AG
Connector: B-108
Harness side
Junction block (Front view)
B-108 (B)
Main
Index
Group
TOC
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