Mitsubishi Galant 9G. Manual — part 26

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-100

STEP 7. Check the wiring harness between sunroof motor
assembly connector D-04 (terminal 5) and ground.
Q: Is the wiring harness between sunroof motor assembly

connector D-04 (terminal 5) and ground in good
condition?
YES : No action is necessary and testing is complete.
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. The system
should communicate with the sunroof-ECU normally.

STEP 8. Check ETACS-ECU connector C-218 for loose,
corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is ETACS-ECU connector C-218 in good condition?

YES : Go to Step 9.
NO : Repair or replace the damaged component(s). Refer

to GROUP 00E, Harness Connector Inspection

P.00E-2

. The system should communicate with the

sunroof-ECU normally.

STEP 9. Check the wiring harness between sunroof motor
assembly connector D-04 (terminal 10) and ETACS-ECU
connector C-218 (terminal 59).

AC400530

AI

CONNECTOR: D-04

HARNESS SIDE

AC305413AN

CONNECTOR: C-218

JUNCTION BLOCK
(REAR VIEW)

C-218 (GR)

HARNESS SIDE

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59

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AC305413AN

CONNECTOR: C-218

JUNCTION BLOCK
(REAR VIEW)

C-218 (GR)

HARNESS SIDE

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52

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AC400530

AI

CONNECTOR: D-04

HARNESS SIDE

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-101

NOTE: Also check intermediate connector C-27 and joint con-
nector C-03 for loose, corroded, or damaged terminals, or ter-
minals pushed back in the connector. If intermediate connector
C-27 or joint connector C-03 is damaged, repair or replace the
damaged component(s) as described in GROUP 00E, Harness
Connector Inspection

P.00E-2

.

Q: Is the wiring harness between sunroof motor assembly

connector D-04 (terminal 10) and ETACS-ECU connector
C-218 (terminal 59) in good condition?
YES : Go to Step 10.
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. The system
should communicate with the sunroof-ECU normally.

STEP 10. Replace the sunroof motor assembly.
(1) Replace the sunroof motor assembly.
(2) The system should communicate with the sunroof-ECU

normally.

Q: Can the system communicate with the sunroof-ECU?

YES : No action is necessary and testing is complete.
NO : Replace the ETACS-ECU. The system should

communicate with the sunroof-ECU normally.

TONE ALARM

GENERAL DESCRIPTION CONCERNING THE TONE ALARM

M1549021000326

The tone alarm functions are as follows. These func-
tions are controlled by relevant ECUs.

AC305232

AC305232

CONNECTORS: C-03, C-27

AI

C-03

C-27

C-27

C-03 HARNESS SIDE

FUNCTION

CONTROL ECU

Ignition key reminder tone alarm function

ETACS-ECU

Light reminder tone alarm function

ETACS-ECU, column switch

Seat belt tone alarm function

ETACS-ECU

Door ajar warning buzzer

ETACS-ECU

Center display operation tone <vehicles with multi center
display (middle-grade type)>

ETACS-ECU

Turn-signal light buzzer

ETACS-ECU, column switch

SYMPTOM PROCEDURES

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-102

Ignition key reminder tone alarm function
When the driver’s door is opened with the ignition key inserted
in the ignition key cylinder (ignition switch is in the OFF posi-
tion,) the tone alarm sounds intermittently to indicate that the
ignition key has not been removed.

Light reminder tone alarm function
When the taillights or headlights is the ON position, if the igni-
tion key is removed and the driver's door is opened, a tone
alarm will sound continuously to warn that the lights are on.
However, if the taillights or headlights have been turned off by
the headlight automatic-shutoff function, the tone alarm will not
sound.

Seat belt tone alarm function

AC005427AB

ON

OFF

ON

(Key removed)

OFF

(Key inserted)

ON (Open)

OFF (Closed)

ON (Tone alarm

sounds)

OFF (Tone alarm

does not sound)

Ignition switch
(IG1)

Key
reminder
switch

Driver's
door
switch

Ignition key
inserted
reminder
tone alarm
output

AC005428

AB

ON

OFF

ON

(Key removed)

OFF

(Key inserted)

ON (Open)

OFF (Closed)

ON (Tone alarm

sounds)

OFF (Tone alarm

does not sound)

Tail light or
headlight

Key
reminder
switch

Driver's
door
switch

Light
reminder
tone
alarm output

AC305326 AC

ON

OFF

ON (UNFASTENED)

OFF (FASTENED)

ON (TONE ALARM SOUNDS)

OFF (TONE ALARM DOES

NOT SOUND)

IGNITION SWITCH (IG1)

SEAT BELT
TONE ALARM
OUTPUT

T

T

T

T

T

T: 6 SECONDS

T1: 1 SECOND

T

T1

t t t

T1

T1

T1

T1

T1

t1

t: 0.16 SECOND

t1: 0.52 SECOND

SEAT BELT
TONE ALARM
OUTPUT

ON (TONE ALARM

SOUNDS)

OFF (TONE ALARM

DOES NOT SOUND)

SEAT BELT SWITCH
(DRIVER'S SIDE)

T

SYMPTOM PROCEDURES

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SIMPLIFIED WIRING SYSTEM (SWS)

54B-103

If any of the following conditions is met with the igni-
tion switch at "ON" or "ST", the ETACS-ECU sounds
the tone alarm by using the driver's seat belt switch
signal and the vehicle speed signal sent from the
combination meter.

• Sounds the tone alarm for six seconds when the

ignition switch is turned "ON" with the seat belt
switch on (the driver's seat belt is not fastened).
This is called "Timer function".

• Sounds the tone alarm 12 cycles (after 0.5 sec-

onds) if any of the following conditions is met
when sixty seconds or more have elapsed since
the ignition switch is turned "ON". One cycle con-
sists of five-second "on" and then three-second
"off".

a. The vehicle speed has reached 8 km/h (5

mph) while the seat belt switch is turned on
(driver's seat belt is not fastened) with the
ignition switch "ON.

b. The seat belt switch has been turned on

(driver's seat belt has not been fastened) for
at least ten seconds while the ignition switch
has been turned "ON" and the vehicle speed
has been 8 km/h (5 mph) or more.

NOTE: Once the tone alarm has sounded 12

cycles, it does not sound again until the vehi-
cle speed reduces to 3 km/h (2 mph) or less
even if any of the following conditions is met.

• The tone alarm stops sounding if the ignition

switch or the seat belt switch is turned off (the
driver's seat belt is fastened) while the timer
operation is active.

AC305374

ON

OFF

ON (UNFASTENED)

OFF (FASTENED)

ON (TONE ALARM

SOUNDS)

IGNITION SWITCH (IG1)

SEAT BELT
SWITCH
(DRIVER'S SIDE)

SEAT BELT
TONE ALARM
OUTPUT

a: 0.5 SECOND

b: 5 SECONDS

c: 3 SECONDS

d: 60 SECONDS OR MORE

8 km/h (5 mph)

0 km/h (0 mph)

VEHICLE SPEED

d

e: 10 SECONDS

AC

3 km/h (2 mph)

T: 6 SECONDS

T1: 1 SECOND

t: 0.16 SECOND

t1: 0.52 SECOND

b

T1

t t t

T1

T1

T1

T1

t1

SEAT BELT
TONE ALARM
OUTPUT

ON (TONE ALARM

SOUNDS)

OFF (TONE ALARM

DOES NOT SOUND)

OFF (TONE ALARM

DOES NOT SOUND)

T

b

b

c

c

a

a

a

12 CYCLES

1 CYCLE

e

12 CYCLES

12 CYCLES