Mitsubishi Colt Ralliart. Manual — part 354
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-160
INSPECTION PROCEDURE K-2: Any of the fog lamps does not illuminate.
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If any of the fog lamps do not illuminate, the wiring
harness connector(s), the bulb or the fuse may be
defective or burned out.
POSSIBLE CAUSES
• Burned-out fog lamp bulb
• Damaged harness wires and connectors
FOG LAMP
RELAY
FOG LAMP
(RH)
FOG LAMP
(LH)
Fog Lamps Circuit
Wire colour code
B : Black LG : Light green G : Green L : Blue W : White Y : Yellow SB : Sky blue
BR : Brown O : Orange GR : Grey R : Red P : Pink V : Violet PU : Purple
Main
Index
Group
TOC
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-161
DIAGNOSIS PROCEDURE
Step 1. Connector check: A-22 fog lamp (RH)
connector or A-15 fog lamp (LH) connector
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
Step 2. Check the bulbs of the fog lamps lamp.
Check the bulb(s) of the defective lamp.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the bulb(s) of the defective lamp.
Step 3. Resistance measurement at the A-22 fog
lamp (RH) connector or A-15 fog lamp (LH)
connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Check the resistance between the lamp
connector and body earth.
•
Resistance between A-22 fog lamp (RH) connec-
tor terminal No.1 and body earth
• Resistance between A-15 fog lamp (LH) con-
nector terminal No.1 and body earth
OK: Continuity exists (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 4.
AC509191
Connector: A-15
AC
A-15 (B)
Harness side
AC509176
Connector: A-22
AD
A-22 (GR)
Harness side
AC509191
Connector: A-15
AC
A-15 (B)
Harness side
AC509176
Connector: A-22
AD
A-22 (GR)
Harness side
AC310506EB
Connector: A-15, A-22
(Harness side)
Main
Index
Group
TOC
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-162
Step 4. Check the wiring harness from A-22 fog
lamp (RH) connector or A-15 fog lamp (LH)
connector terminal No.1 to body earth.
• Check the earth wires for open circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
Step 5. Connector check: Connector check:
B-115 fog lamp relay connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the defective connector.
AC509191
Connector: A-15
AC
A-15 (B)
Harness side
AC509176
Connector: A-22
AD
A-22 (GR)
Harness side
AC313824 AH
Connector: B-115
Junction block side
Junction block (Front view)
Main
Index
Group
TOC
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-163
Step 6. Check the wiring harness from A-22 fog
lamp (RH) connector or A-15 fog lamp (LH)
connector terminal No.2 to B-115 fog lamp relay
connector terminal No.4.
NOTE: Prior to the wiring harness inspection, check
junction block connector B-112, and repair if neces-
sary.
• Check the power supply line for open circuit.
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).
AC509191
Connector: A-15
AC
A-15 (B)
Harness side
AC509176
Connector: A-22
AD
A-22 (GR)
Harness side
AC313825
Connectors: B-112, B-115
AH
B-115
B-112
B-112
B-115
Junction block (Front view)
Harness side
Junction block side
Main
Index
Group
TOC
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