Mitsubishi 380. Manual - part 24

SYMPTOM PROCEDURES

SIMPLIFIED WIRING SYSTEM (SWS)

54B-93

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 53).

54DB063A

CONNECTOR: D-04

HARNESS SIDE

54DB006A

CONNECTORS: C-218

JUNCTION BLOCK
(REAR VIEW)

C-218 (GR)

HARNESS SIDE

48 47

50
59

51
60

53
62

54
63

67 66

54DB006A

CONNECTORS: C-218

JUNCTION BLOCK
(REAR VIEW)

C-218 (GR)

HARNESS SIDE

48 47

50
59

51
60

53
62

54
63

67 66

54DB063A

CONNECTOR: D-04

HARNESS SIDE

SYMPTOM PROCEDURES

SIMPLIFIED WIRING SYSTEM (SWS)

54B-94

NOTE: Also check intermediate connector C-27 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector C-27 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 53) in good condition?
YES : Go to Step 10.
NO : The wiring harness may be damaged or the

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.

54DB066A

C-27

CONNECTOR: C-27

FUNCTION

CONTROL 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 >

ETACS-ECU

Turn-signal lamp buzzer

ETACS-ECU, column switch

SYMPTOM PROCEDURES

SIMPLIFIED WIRING SYSTEM (SWS)

54B-95

Light reminder tone alarm function

When the taillights or headlamps 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 lamps are on.
However, if the taillights or headlamps have been turned off by
the headlamp automatic-shutoff function, the tone alarm will not
sound.

Seat belt tone alarm function

AC005428

OFF

(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

OFF

ON (UNFASTENED)

OFF (FASTENED)

ON (TONE ALARM SOUNDS)

OFF (TONE ALARM DOES

NOT SOUND)

IGNITION SWITCH (IG1)

SEAT BELT

TONE ALARM

OUTPUT

T: 6 SECONDS
T1: 1 SECOND

t t t

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)

SYMPTOM PROCEDURES

SIMPLIFIED WIRING SYSTEM (SWS)

54B-96

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

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

e: 10 SECONDS

3 km/h (2 mph)

T: 6 SECONDS
T1: 1 SECOND

t: 0.16 SECOND
t1: 0.52 SECOND

t t t

SEAT BELT

TONE ALARM

OUTPUT

ON (TONE ALARM

SOUNDS)

OFF (TONE ALARM

DOES NOT SOUND)

OFF (TONE ALARM

DOES NOT SOUND)

b b

12 CYCLES

1 CYCLE

12 CYCLES

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