Mitsubishi Grandis. Manual — part 235
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-402
DIAGNOSTIC PROCEDURE
Step 1. Check the operation of the interior lamps.
Check that the interior lamps illuminate and
extinguish normally.
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Refer to inspection procedure P-1 " The
interior lamps (room ramp, rear personal
lamps, door lamps, luggage compartment
lamp, key illumination lamp) does not
illuminate or extinguish normally
Step 2. SWS monitor data list
<Selected item> ETACS ECU
• Driver's door is open
OK: Normal condition is displayed.
Q: Is the check result normal?
YES :
Go to Step 3.
NO :
Refer to inspection procedure Q-5 "The
driver's door switch signal is not received
<LH drive vehicles>
drive vehicles>
Step 3. ETACS switch data by using the SWS
monitor
Check the ETACS-ECU signal related to the rear
personal lamp illumination.
• Ignition switch: OFF (key inserted)
• Passenger’s door: Close → Open
• Tailgate: Close → Open
• Rear door (RH): Close → Open
• Rear door (LH): Close → Open
• Driver’s door: Unlock → Lock
• Room lamp on switch: ON
• Room lamp off switch: ON
OK: Normal conditions displayed for all the
items.
Q: Is the check result normal?
Item No.
Item name
Normal
condition
Item 32
DR DOOR SW
ON
Item No.
Item name
Normal
condition
Item 03
KEY REMINSW
OFF
Item No.
Item name
Normal
condition
Item 05
PASS DOOR SW
from OFF
to ON
Item No.
Item name
Normal
condition
Item 07
TRK LID LA SW
from OFF
to ON
Item No.
Item name
Normal
condition
Item 41
R.DOOR(RH) SW
from OFF
to ON
Item No.
Item name
Normal
condition
Item 42
R.DOOR(LH) SW
from OFF
to ON
Item No.
Item name
Normal
condition
Item 21
DR DOR LOK SW
from OFF
to ON
Item 22
DR DOR ULOK SW
from ON
to OFF
Item No.
Item name
Normal
condition
Item 31
RM LMP ON SW
ON
Item No.
Item name
Normal
condition
Item 31
RM LMP OFF SW
ON
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-403
Normal conditions are displayed for all the items. :
Go to Step 4.
Normal condition is not displayed for item No.03 :
Refer to inspection procedure Q-11 "The
key reminder switch signal is not received
Normal condition is not displayed for item No.05,
07, 41or 42 :
Refer to inspection procedure Q-14
"All the door switch signals are not received
Normal condition is not displayed for item No.21
and 32 :
Refer to inspection procedure Q-15 "The
driver's door lock actuator switch signal is
not received <LH drive vehicles>
Normal condition is not displayed for item No.31or
42 :
Refer to inspection procedure Q-22 "The
interior lamp "all on" or "all off" switch signal
is not sent to the ETACS-ECU
Step 4. Retest the system.
Check which lamp does not illuminate when the lamp
switches are operated.
Q: Which lamp does not illuminate?
No lamps illuminate :
Go to Step 5.
One of the second seat lamps (RH or LH) or the
third seat lamps (RH or LH) does not illuminate. :
Go to Step 9.
Step 5. Check the rear personal lamp switches.
Check which position (ON or DOOR) of the rear
personal lamp switch does not activate the relevant
lamp.
Q: Which switch position does not activate the lamp?
The lamp illuminates at neither the ON nor DOOR
position. :
Go to Step 6.
The lamp does not illuminate at the DOOR position.
:
Go to Step 8.
The lamp does not illuminate at the ON position. :
Replace the room lamp.
Step 6. Connector check: C-219 ETACS-ECU
connector, E-09 rear personal lamp connector
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair the defective connector.
AC310626
Connector: C-219
Junction block (Rear view)
<LHD>
AB
Junction block side
AC310620
Connector: C-219
Junction block
(Rear view)
<RHD>
AB
Junction block side
AC310651
AC310651
AG
Connector: E-09 <LHD>
Harness side
AC310655
AC310655
AH
Connector: E-09 <RHD>
Harness side
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-404
Step 7. Check the wiring harness from C-219
ETACS-ECU connector terminal No.6 to E-09 rear
personal lamp connector terminal No.2.
NOTE:
Prior to the wiring harness inspection, check
intermediate connector E-11 and junction block
connector C-211, 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.
AC310626
Connector: C-219
Junction block (Rear view)
<LHD>
AB
Junction block side
AC310620
Connector: C-219
Junction block
(Rear view)
<RHD>
AB
Junction block side
AC310651
AC310651
AG
Connector: E-09 <LHD>
Harness side
AC310655
AC310655
AH
Connector: E-09 <RHD>
Harness side
AC310623
AC310623
Connector: C-211
AQ
<LHD>
Junction block (Front view)
Harness side
3
1
2
AC310618
AC310618
Connector: C-211 <RHD>
AS
Harness side
Junction block (Front view)
3
1
2
AC310651
AC310651
AH
Connector: E-11 <LHD>
AC310655
AC310655
AI
Connector: E-11 <RHD>
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-405
Step 8. Check the wiring harness from C-219
ETACS-ECU connector terminal No.5 to E-09 rear
personal lamp connector terminal No.3.
NOTE:
Prior to the wiring harness inspection, check
intermediate connector E-11 and junction block
connector C-211, 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.
AC310626
Connector: C-219
Junction block (Rear view)
<LHD>
AB
Junction block side
AC310620
Connector: C-219
Junction block
(Rear view)
<RHD>
AB
Junction block side
AC310651
AC310651
AG
Connector: E-09 <LHD>
Harness side
AC310655
AC310655
AH
Connector: E-09 <RHD>
Harness side
AC310623
AC310623
Connector: C-211
AQ
<LHD>
Junction block (Front view)
Harness side
3
1
2
AC310618
AC310618
Connector: C-211 <RHD>
AS
Harness side
Junction block (Front view)
3
1
2
AC310651
AC310651
AH
Connector: E-11 <LHD>
AC310655
AC310655
AI
Connector: E-11 <RHD>
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