Mitsubishi Grandis. Manual — part 120
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-477
NOTE:
Prior to the wiring harness inspection, check
intermediate connector C-16 (front: RH <LH drive
vehicles>, front: LH <RH drive vehicles>, rear: RH
and tailgate) or G-14 (tailgate) and junction block
connector C-210 (rear: LH) and repair if necessary.
• 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
Cope with Intermittent Malfunction
NO :
Replace the ETACS-ECU.
AC312033
Connector: C-16 <LHD>
AB
9
21
33
35
24
12
3 4
7
8
5 6
39
28
41
30
18
4243
31
1920
32
40
29
1617
38
27
15
37
36
26
14
13
25
2
1
34
23
11
10
22
AC312043
Connector: C-16 <RHD>
AH
9
21
33
35
24
12
3 4
7
8
5 6
39
28
41
30
18
4243
31
1920
32
40
29
1617
38
27
15
37
36
26
14
13
25
2
1
34
23
11
10
22
AC312078
Connector: G-14
AC
2
1
4
3
13
8
11
10
5
7
12
6
14
9
AC312035
Harness side
AC
Connector: C-210 <LHD>
7
15
5
6
1413
2
9
12
4 3
10
11
1
8
Junction block (Front view)
AC312045
Harness side
AC
Connector: C-210 <RHD>
7
15
5
6
1413
2
9
12
4 3
10
11
1
8
Junction block (Front view)
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-478
Inspection Procedure Q-15: The driver's door lock actuator switch signal is not received. <LH drive
vehicles>
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.
• Key reminder function
• Central door locking
• Keyless entry system
• Interior lamps
POSSIBLE CAUSES
• Malfunction of the front door lock actuator (LH)
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
ETACS-ECU
DOOR LOCK
ACTUATOR
(FRONT: LH)
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
Door Lock Actuator Input Circuit <LHD>
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-479
DIAGNOSTIC PROCEDURE
Step 1. Connector check: F-04 front door lock
actuator (LH) 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 (LH).
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 F-04 front
door lock actuator (LH) connector.
(1) Disconnect the connector, and measure at the
wiring harness side.
(2) Resistance between F-04 front door lock actuator
(LH) connector terminal No.1 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 F-04
front door lock actuator (LH) connector terminal
No.1 and body earth
NOTE:
Prior to the wiring harness inspection, check
intermediate connector C-27, 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.
AC312083
AB
Connector: F-04
Harness side
<LHD>
AC312083
AB
Connector: F-04
Harness side
<LHD>
AC312730AF
Connector F-04
(Harness side)
5
6
4
2
3
1
AC312083
AB
Connector: F-04
Harness side
<LHD>
AC312031
AG
Connector: C-27 <LHD>
INPUT SIGNAL PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-480
Step 5. Connector check: C-220 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 F-04 front
door lock actuator (LH) connector terminal Nos.2
and 3 to C-220 ETACS-ECU connector terminal
Nos.35 and 36.
NOTE:
Prior to the wiring harness inspection, check
intermediate connector C-27, 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 driver's door lock actuator switch
signal is received normally.
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.
AC312037
Connector: C-220
Junction block (Rear view)
AC
<LHD>
Harness side
AC312083
AB
Connector: F-04
Harness side
<LHD>
AC312037
Connector: C-220
Junction block (Rear view)
AC
<LHD>
Harness side
AC312031
AG
Connector: C-27 <LHD>
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