Mitsubishi Colt Ralliart. Manual — part 369
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INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-220
DIAGNOSIS PROCEDURE
Step 1. Pulse check
Check the input signal from the driver's door switch.
OK: The M.U.T.-III sounds or the voltmeter
needle fluctuates.
Q: Are the check result normal?
All the signals are received normally. :
Go to Step
2.
The driver’s door switch signals is not received. :
Refer to Inspection Procedure N-3 "The
driver's door switch signal is not received
."
The passenger’s door switch signals is not
received. :
Refer to inspection procedure N-14
"The passenger's door switch signal is not
received
."
Step 2. Connectors check: C-29 (front: RH), C-19
(front: LH), C-08 (rear: RH) or C-14 (rear: LH) door
switch connectors or E-08 tailgate switch
connector, and B-133 ETACS-ECU connector
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Repair the defective connector.
System switch
Check conditions
Driver's door switch
When the driver's door is
opened
Passenger’s door switch When the passenger's
door is opened
AC313826AC
B-133 (GR)
Connector: B-133
Harness side
Junction block (Rear view)
AC401057
AG
Connectors: C-08, C-29
Harness side
C-08, C-29
C-08
C-29
AC401059
Connectors: C-14, C-19
AE
C-14, C-19
C-14
C-19
Harness side
AC401046
Connector: E-08
AE
Harness side
E-08 (B)
Main
Index
Group
TOC
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INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-221
Step 3. Check the installation condition.
Check that the door switch is installed on the body
correctly.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Correct the installation condition.
Step 4.Check the door switch.
Refer to GROUP 42
− Door
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Replace the door switch.
Step 5. Check the wiring harness from terminal
No.2 of the C-29 (front: RH), C-19 (front: LH), C-08
(rear: RH) or C-14 (rear: LH) door switch
connector or terminal No.1 of the E-08 tailgate
switch connector to terminal No.61 of the B-133
ETACS-ECU connector.
AC313826AC
B-133 (GR)
Connector: B-133
Harness side
Junction block (Rear view)
AC401057
AG
Connectors: C-08, C-29
Harness side
C-08, C-29
C-08
C-29
AC401059
Connectors: C-14, C-19
AE
C-14, C-19
C-14
C-19
Harness side
AC401046
Connector: E-08
AE
Harness side
E-08 (B)
Main
Index
Group
TOC
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INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-222
NOTE:
Prior to the wiring harness inspection, check interme-
diate connector C-12 <tailgate> and junction block
connector B-23 or B-24 <RH> and repair if neces-
sary.
• Check the input line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the wiring harness between each of
the door switches and the ETACS-ECU.
Step 6. Retest the system.
Check that all the all door switch signals are received
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 ETACS-ECU.
AC401056
Connectors: B-23, B-24
AC
B-23
B-24
B-24
B-23
AC401059
Connector: C-12
AC
Main
Index
Group
TOC
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INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-223
INSPECTION PROCEDURE N-11: The driver's door lock actuator 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 driver's door lock actuator is
used to operate the functions below. If the signal is
abnormal, these functions will not work normally.
• Central door locking
• Room lamp
POSSIBLE CAUSES
• Malfunction of the front door lock actuator (RH)
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
Door Lock Actuator Input Circuit
ETACS-ECU
FRONT
DOOR LOCK
ACTUATOR
(RH)
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
Main
Index
Group
TOC
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