Mitsubishi Galant (2004+). Manual — part 229
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-107
General circuit diagram for ignition key reminder tone alarm function
General circuit diagram for light reminder tone alarm function
DATA LINK
CONNECTOR
KEY REMINDER
SWITCH
FRONT
DOOR
SWITCH
(LH)
IGNITION
SWITCH (IG1)
ETACS-
ECU
22
RELAY BOX
(FUSE )
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-108
COLUMN-ECU
COLUMN SWITCH
LIGHTING
SWITCH
DATA LINK
CONNECTOR
DOOR
SWITCH
(LH)
IGNITION
SWITCH (IG1)
ETACS-
ECU
FRONT-ECU
22
RELAY BOX
(FUSE )
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-109
General circuit diagram for seat belt tone alarm function
DATA LINK
CONNECTOR
COMBINATION METER
SEAT BELT
SWITCH
(DRIVER'S SIDE)
IGNITION
SWITCH (IG1)
ETACS-
ECU
CPU
22
RELAY BOX
(FUSE )
SYMPTOM PROCEDURES
TSB Revision
SIMPLIFIED WIRING SYSTEM (SWS)
54B-110
INSPECTION PROCEDURE B-1: Tone Alarm: Ignition Key Reminder Tone Alarm Function does not
Work Normally.
NOTE: This troubleshooting procedure requires the
use of scan tool MB991958 and SWS monitor kit
MB991813. For details on how to use the SWS mon-
itor, refer to "How to use SWS monitor
.
CIRCUIT OPERATION
The ETACS-ECU operates the ignition key reminder
tone alarm function, based on input signals from the
following switches:
• Ignition switch (IG1): OFF
• Key reminder switch: OFF
• Front door switch (LH): ON
The ETACS-ECU operates the ignition key reminder
tone alarm function under the following conditions:
• Ignition key position: "LOCK" (OFF) position
• Ignition key: Inserted in the ignition key cylinder
• Driver’s door: open
.
TECHNICAL DESCRIPTION (COMMENT)
If the function does not work normally, the input cir-
cuit system from the switches or the ETACS-ECU
may be defective (refer to "CIRCUIT OPERATION").
.
TROUBLESHOOTING HINTS
• Trouble in input signal system
• 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
DIAGNOSIS
Required Special Tools:
• MB991223: Harness Set
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A
• MB991813: SWS Monitor Kit
• MB991806: SWS Monitor Cartridge
• MB991812: SWS Monitor Harness (For Column-ECU)
• MB991822: Probe Harness
ETACS-
ECU
·
FRONT
DOOR SWITCH
· IGNITION SWITCH (IG1)
· KEY REMINDER SWITCH
Ignition Key Reminder Tone Alarm Function
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