Mitsubishi Galant (2004+). Manual - part 229

 

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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 

P.54B-15

."

.

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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