Mitsubishi 380. Manual — part 92
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-365
NOTE: Also check junction block connector C-205 for loose,
corroded, or damaged terminals, or terminals pushed back in
the connector. If junction block connector C-205 is damaged,
repair or replace the damaged component(s) as described in
GROUP 00E, Harness Connector Inspection
Q: Is the wiring harness between map lamp assembly
connector D-02 (terminal 1) <without sunroof> or
overhead console assembly connector D-03 (terminal 1)
<with sunroof> and ETACS-ECU connector C-219
(terminal 6) in good condition?
YES : Replace the ETACS-ECU. Verify that the dome lamp
illuminates normally.
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary. Verify that
the dome lamp illuminates normally.
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-366
INSPECTION PROCEDURE K-2: Interior Light: The front dome lamp, rear dome lamp or trunk lamp do
not illuminate or go out normally.
.
CIRCUIT OPERATION
The ETACS-ECU operates the dome lamp according
to the following signals:
• Ignition switch (IG1): ON or OFF
• Key reminder switch: ON or OFF
• Door switches: ON or OFF
• Trunk lid latch assembly: ON or OFF
• Driver’s door lock actuator switch: LOCK or
UNLOCK
.
16DB350A
CONNECTOR:C-28
16DB324A
CONNECTOR: C-204
HARNESS SIDE
54DB045A
CONNECTORS: C-218, C-219
JUNCTION BLOCK
(REAR VIEW)
C-219
C-218 (GR)
HARNESS SIDE
C-218
C-219
JUNCTION BLOCK SIDE
45
46
48 47
49
50
59
51
60
52
53
62
65
61
54
63
56
68
64
67 66
57
58
55
16DB454A
CONNECTORS: D-02, D-03
D-02
D-03
D-02
D-03
16DB455A
CONNECTORS: D-07, D-10
D-07
D-10
D-10
D-07
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-367
TECHNICAL DESCRIPTION (COMMENT)
Is the dome lamp does not flash normally, a
burned-out dome lamp bulb, the input circuits from
the switches described in "CIRCUIT OPERATION",
the power supply line to the switches or the
ETACS-ECU may be defective.
.
TROUBLESHOOTING HINTS
• Refer to circuit diagrams GROUP-
• Refer to configuration diagrams GROUP-
• The front dome lamp bulb may be defective
• The rear dome lamp bulb may be defective
• The trunk lamp bulb may be defective
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
• The ETACS-ECU may be defective
SYMPTOM PROCEDURES
SIMPLIFIED WIRING SYSTEM (SWS)
54B-368
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB991958: Diagnostic Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A
STEP 1. Check which of the front dome lamp, rear dome
lamp or trunk lamp do not illuminate normally.
Q: Which of the front dome lamp, rear dome lamp or trunk
lamp fail to illuminate normally?
Front dome lamp and rear dome lamp : Go to Step 2.
Front dome lamp : Go to Step 4.
Rear dome lamp : Go to Step 9.
Trunk lamp : Go to Step 14.
STEP 2. Check map lamp assembly connector D-02
<without sunroof>, overhead console assembly connector
D-03 <with sunroof> and ETACS-ECU connector C-219 for
loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Is map lamp assembly connector D-02 <without
sunroof>, overhead console assembly connector D-03
<with sunroof> and ETACS-ECU connector C-219 in
good condition?
YES : Go to Step 3.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
. Check that the front dome lamp and rear
dome lamp illuminates normally.
54DB014A
CONNECTOR: C-219
JUNCTION BLOCK SIDE
JUNCTION BLOCK
(REAR VIEW)
16DB454A
CONNECTORS: D-02, D-03
D-02
D-03
D-02
D-03
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