Mitsubishi Colt Ralliart. Manual — part 427
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-216
Inspection Procedure N-8: Signal is not received from the remote controlled mirror switch
(folding/unfolding switch).
CAUTION
Whenever the ECU is replaced, ensure that the
input signal circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
The electric-folding door mirrors work in accordance
with the input signal from the remote controlled mir-
ror switch. If the input signal is abnormal, the door
mirrors will not work normally.
POSSIBLE CAUSES
• Malfunction of the remote controlled mirror switch
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
Remote Controlled Mirror Switch Input Circuit
ETACS-
ECU
REMOTE
CONTROLLED
MIRROR SWITCH
FOLD
SWITCH
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
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-217
DIAGNOSIS PROCEDURE
Step 1. Connector check: B-20 remote controlled
mirror switch connector
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
Step 2. Check the remote controlled mirror
switch.
Refer to GROUP 51
.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the remote controlled mirror switch.
Step 3. Resistance measurement at the B-20
remote controlled mirror switch connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Continuity between B-20 remote controlled mirror
switch connector 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.
AC401055
AI
Connector: B-20
Harness side
AC401055
AI
Connector: B-20
Harness side
AC310506DQ
Connector B-20
(Harness side)
Main
Index
Group
TOC
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-218
Step 4. Check the wiring harness between B-20
remote controlled mirror switch connector
terminal No.1 to body earth.
NOTE: Prior to the wiring harness inspection, check
joint connector B-25, and repair if necessary.
• Check the earth wires for open circuit.
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 :
Repair the wiring harness.
Step 5. Connector check: B-132 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO : .
Repair the defective connector.
Step 6. Check the wiring harness between B-20
remote controlled mirror switch connector
terminal No.4 to B-132 ETACS-ECU connector
terminal No.27.
• Check the input line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the wiring harness.
Step 7. ETACS switch data by using the SWS
monitor
Check the input signal from the remote controlled
mirror switch.
• Ignition switch: ON
• Remote controlled mirror (folding/unfolding)
switch: from OFF to ON
OK: Normal condition is displayed.
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 ETACS-ECU.
AC401056
AD
B-20
B-20
B-25
B-25
Connectors: B-20, B-25
Harness side
AC313826 AD
Connector: B-132
Junction block (Rear view)
Harness side
Item No.
Item name
Normal
condition
Item 14
EL RET MIR SW
OFF to ON
(only when
switch is
operated)
AC401055
AI
Connector: B-20
Harness side
AC313826 AD
Connector: B-132
Junction block (Rear view)
Harness side
Main
Index
Group
TOC
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-219
Inspection Procedure N-9: The hazard warning lamp switch signal is not received.
CAUTION
Whenever the ECU is replaced, ensure that the
input signal circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
Input signal from the hazard warning lamp switch is
used to operate the functions below. If the signal is
abnormal, these functions will not work normally.
POSSIBLE CAUSES
• Malfunction of the hazard warning lamp switch
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Connector check: B-09 hazard warning
lamp switch connector
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
Hazard Warning Lamp Switch Input Circuit
ETACS-
ECU
HAZARD
WARNING
LAMP SWITCH
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
AC401055
AJ
Connector: B-09
Harness side
Main
Index
Group
TOC
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