Mitsubishi Grandis. Manual — part 230
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-382
NOTE:
Prior to the wiring harness inspection, check
intermediate connector E-11 and junction block
connector C-211, and repair if necessary.
• Check the power supply line for open circuit.
Q: Is the check result normal?
YES :
Replace the ETACS-ECU.
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
AC310652
AB
Connectors: E-02, E-11
Harness side
E-02
E-11
E-02
E-11
<Vehicles with
sunroof-LHD>
AC310656
AB
Connectors: E-02, E-11
Harness side
E-02
E-11
E-02
E-11
<Vehicles with
sunroof-RHD>
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
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-383
Inspection Procedure P-2: The room lamp does not illuminate normally. <Vehicles with keyless entry>
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-384
COMMENTS ON TROUBLE SYMPTOM
If the room lamp does not illuminate or extinguish
normally, wiring harness connector(s) or the bulb
may be defective.
POSSIBLE CAUSES
• Malfunction of the interior lamp switches
• Malfunction of the room lamp bulbs
• Malfunction of the rear personal lamp bulbs
• Damaged harness wires and connectors
ETACS-ECU
J/B SIDE
ROOM LAMP
INTERIOR
LAMP
SWITCH
REAR
PERSONAL
LAMP
FOR
SECOND
SEAT: LH
REAR
PERSONAL
LAMP
FOR
SECOND
SEAT: RH
REAR
PERSONAL
LAMP
FOR
THIRD
SEAT: LH
REAR PERSONAL LAMP
(FOR THIRD SEAT: 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
Room Lamp and Rear Personal Lamp Circuit
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-385
DIAGNOSTIC PROCEDURE
Step 1. 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 2.
NO :
Refer to inspection procedure Q-5 "The
driver's door switch signal is not received
<LH drive vehicles>
drive vehicles>
Step 2. ETACS switch data by using the SWS
monitor
Check the ETACS-ECU signal related to the room
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 32
RM LMP OFF SW
ON
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