Mitsubishi Grandis. Manual — part 60
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-237
Prior to the wiring harness inspection, check
intermediate connector G-14and junction block
connectors C-202, C-210, and repair if necessary.
• Check the power supply line for open or short
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.
Step 5. Connector check: C-219 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 6.
NO :
Repair the connector.
AC310624
Connectors: C-202, C-210 <LHD>
AT
Junction block (Front view)
C-210
C-202
C-210
Harness side
C-202
Harness side
AC310619
Connectors: C-202, C-210 <RHD>
AT
Junction block (Front view)
C-210
C-202
C-210
Harness side
C-202
Harness side
AC310222
Connector: G-14
AF
2
1
4
3
13
8
11
10
5
7
12
6
14
9
AC310626AD
Connector: C-219 <LHD>
Junction block (Rear view)
Junction block side
AC310620
Connector: C-219
Junction block
(Rear view)
<RHD>
AB
Junction block side
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-238
Step 6. Check the wiring harness between C-219
ETACS-ECU connector terminal No.17 and G-05
rear wiper motor connector terminal No.2.
NOTE:
Prior to the wiring harness inspection, check
intermediate connector G-14, junction block
connectors C-210, and repair if necessary.
• Check the power supply line for open or short
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 rear wiper auto stop function works
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.
AC310626AD
Connector: C-219 <LHD>
Junction block (Rear view)
Junction block side
AC310620
Connector: C-219
Junction block
(Rear view)
<RHD>
AB
Junction block side
AC310222
Connector: G-05
AH
Harness side
AC310623
Connector: C-210
AN
<LHD>
Junction block (Front view)
Harness side
AC310618
Connector: C-210 <RHD>
AO
Junction block (Front view)
Harness side
AC310222
Connector: G-14
AF
2
1
4
3
13
8
11
10
5
7
12
6
14
9
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-239
INSPECTION PROCEDURE H-3: When the selector lever is moved to "R" position during the rear
wiper operation, the rear wiper does not operate at the continuous mode. <A/T>
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the rear wiper does not operate consecutively
when the selector lever is moved to the R position
during the rear wiper operation, the shift position
input signal circuit or the ETACS-ECU may be
defective.
POSSIBLE CAUSES
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Check the operation of the rear wiper.
Check that the rear wiper system should work
normally by operating the rear wiper switch.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to Inspection Procedure H-1 "Rear
wiper does not work at all
Step 2. Pulse check
Check the input signal, which are related to the R
(reverse) gear-linked rear wiper operation.
OK: The MUT-III sounds or the voltmeter
needle fluctuates.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Refer to diagnosis code No.11 inspection
procedure "Engine-A/T-ECU time-out
(related to engine)
Step 3. Retest the system.
Check that the rear wiper operates consecutively
when the selector lever is moved to the R position
during the rear wiper operation.
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.
"R" Position During Wiper Operation Circuit <A/T>
ETACS-ECU
· IGNITION SWITCH (IG1)
· REAR WIPER SWITCH
ENGINE-A/T-
ECU
CAN COMMUNICATION LINE
(CAN_L LINE)
CAN COMMUNICATION LINE
(CAN_H LINE)
INPUT SIGNAL
INPUT SIGNAL
INHIBITOR SWITCH ("R" POSITION)
System switch
Check condition
Inhibitor switch (reverse
position)
When the ignition switch
is turned ON and the
selector lever is moved
to the R position.
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR
54B-240
INSPECTION PROCEDURE H-3: When the shift lever is moved to "R" position during the rear wiper
operation, the rear wiper does not operate at the continuous mode. <M/T>
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the rear wiper does not operate consecutively
when the selector lever is moved to the R position
during the rear wiper operation, the input signal
circuit to the back-up lamp switch ("R" position) or
the ETACS-ECU may be defective.
POSSIBLE CAUSES
• Malfunction of the back-up lamp switch
• Malfunction of the ETACS-ECU
• Damaged harness wires and connectors
Step 1. Confirm the operation of the rear wiper.
Check that the rear wiper work normally.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to Inspection Procedure H-1 "The rear
wiper does not work at all
Step 2. Pulse check
Check the input signal, which are related to the R
(reverse) gear-linked rear wiper operation.
OK: The MUT-III sounds or the voltmeter
needle fluctuates.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Refer to inspection procedure Q-3 "The
back-up lamp switch signal is not received
Step 3. Retest the system.
Check that the rear wiper operates consecutively
when the shift lever is moved to the R position during
the rear wiper operation.
Q: Is the check result normal?
IGNITION
SWITCH (ACC)
ETACS-ECU
J/B SIDE
REAR
WIPER
RELAY
INPUT SIGNAL
· BACK-UP LAMP SWITCH
· REAR WIPER SWITCH
REAR WIPER
MOTOR
"R" Position During Rear Wiper Operation Circuit <M/T>
System switch
Check condition
Back-up lamp
switch
When the ignition switch is
turned ON and the shift lever is
moved to the R position.
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