Mitsubishi Lancer Evolution IX. Manual — part 260
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-299
INSPECTION PROCEDURE L-12: The front door lock actuator (RH) switch signal is not received. <RH
drive vehicles>
CAUTION
Whenever the ECU is replaced, ensure that the
input signal circuit is normal.
COMMENTS ON TROUBLE SYMPTOM
Input signal from the front door lock actuator (RH) is
used to operate the functions below. If the signal is
abnormal, these functions will not work normally.
• Key reminder function
• Central door locking
• Keyless entry system
• Room lamps
POSSIBLE CAUSES
• Malfunction of the front door lock actuator (RH)
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
ETACS-ECU
DOOR LOCK
ACTUATOR
(FRONT: 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
Front Door Lock Actuator Input Circuit <RHD>
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-300
DIAGNOSTIC PROCEDURE
Step 1. Connector check: E-15 front door lock
actuator (RH) connector
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Repair the defective connector.
Step 2. Check the front door lock actuator (RH).
Refer to GROUP 42
− Door
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Replace the front door lock actuator (RH).
Step 3. Resistance measurement at the E-15 front
door lock actuator (RH) connector
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Resistance between E-15 front door lock actuator
(RH) connector terminal No.3 and body earth
OK: 2
Ω or less
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Go to Step 4.
Step 4. Check the wiring harness between E-15
front door lock actuator (RH) connector terminal
No.3 and body earth
NOTE:
Prior to the wiring harness inspection, check interme-
diate connector C-110, 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
Cope with Intermittent Malfunction
NO :
Repair the wiring harness.
AC310493
Harness side
AH
Connector: E-15
<RHD>
E-15(B)
AC310493
Harness side
AH
Connector: E-15
<RHD>
E-15(B)
AC301541HR
Connector E-15
(Harness side)
5
6
4
2
3
1
AC310493
Harness side
AH
Connector: E-15
<RHD>
E-15(B)
AC310456
Connector: C-110
AE
<RHD>
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-301
Step 5. Connector check: C-227 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 from E-15 front
door lock actuator (RH) connector terminal Nos.1
and 2 to C-227 ETACS-ECU connector terminal
Nos.36 and 35.
NOTE:
Prior to the wiring harness inspection, check interme-
diate connector C-110, and repair if necessary.
• 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. Retest the system.
Check that the front door lock actuator (RH) switch
signal is received normally.
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Replace the ETACS-ECU.
Step 8. Pulse check
Check the input signal from the front door lock actua-
tor (RH) switch.
OK: The M.U.T.-II/III sounds or the voltmeter
needle fluctuates.
Q: Is the check result normal?
YES :
The trouble can be an intermittent
malfunction (Refer to GROUP 00
− How to
Cope with Intermittent Malfunction
NO :
Replace the ETACS-ECU.
AC310461
Harness side
Junction block (rear view)
Connector: C-227
AF
<RHD>
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
AC310461
Harness side
Junction block (rear view)
Connector: C-227
AF
<RHD>
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
AC310493
Harness side
AH
Connector: E-15
<RHD>
E-15(B)
System switch
Check condition
Front door lock actuator
(RH) switch
When the driver's door is
unlocked or locked
AC310456
Connector: C-110
AE
<RHD>
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-302
INSPECTION PROCEDURE L-13: The vehicle speed sensor signal is not received.
CAUTION
Whenever the ECU is replaced, ensure that the
input signal circuit is normal.
Vehicle Speed Sensor Input Circuit <LHD>
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
ETACS-ECU
VEHICLE
SPEED SENSOR
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