Mitsubishi Grandis. Manual — part 242
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-430
Step 7. Connector check: C-219 ETACS-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 8.
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
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-431
Step 8. Check the wiring harness from C-219
ETACS-ECU connector terminal No.6 to G-12
luggage compartment lamp connector terminal
No.1.
NOTE:
Prior to the wiring harness inspection, check
intermediate connector G-14, junction block
connector C-210, and repair if necessary.
• Check the power supply line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 9.
NO :
Repair the wiring harness.
Step 9. Retest the system.
Check that the luggage compartment lamp
illuminates and extinguishes 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 luggage compartment lamp.
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
AC310222
Connector: G-12
AI
G-12
Harness side
AC310623
Connector: C-210 <LHD>
AS
Harness side
Junction block (Front view)
AC310618
Connector: C-210 <RHD>
AQ
Harness side
Junction block (Front view)
AC310222
AC310222
Connector: G-14
AK
2
1
4
3
13
8
11
10
5
7
12
6
14
9
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-432
Inspection Procedure P-4: The luggage compartment lamp does not illuminate normally. <Vehicles
without keyless entry system>
CAUTION
Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the luggage compartment lamp does not illuminate
or extinguish normally, wiring harness connector(s)
or the bulb may be defective.
POSSIBLE CAUSES
• Malfunction of the luggage compartment lamp
bulbs
• Damaged harness wires and connectors
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?
Luggage Room Lamp Circuit
ETACS-ECU
LUGGAGE COMPARTMENT
LAMP
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
J/B SIDE
Item No.
Item name
Normal
condition
Item 32
DR DOOR SW
ON
SYMPTOM PROCEDURES
SMART WIRING SYSTEM (SWS) USING SWS MONITOR
54C-433
YES :
Go to Step 2.
NO :
Refer to inspection procedure Q-5 "The
driver's door switch signal is not received
<LH drive vehicles>
vehicles>
Step 2. 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
OK: Normal conditions displayed for all the
items.
Q: Is the check result normal?
Normal conditions are displayed for all the items. :
Go to Step 3.
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>
or <RH drive vehicles>
."
Step 3. Pulse check
Check the input signals below, which is related to the
luggage compartment lamp.
OK: The MUT-III sounds or the voltmeter
needle fluctuates.
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
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. Connector check: G-12 luggage
compartment lamp connector
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Repair the defective connector.
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
System switch
Check condition
Interior lamp ON switch
When turned from OFF
to ON
Interior lamp OFF switch When turned from ON to
OFF
AC310222
Connector: G-12
AI
G-12
Harness side
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