Mitsubishi Galant. Manual — part 653

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-7

DIAGNOSTIC TROUBLE CODE CHART

M1549000700074

Refer to the relevant page according to the
diagnostic troubles codes.

Door lock switch (incorporated in power window main
switch and power window sub switch)

Press "LOCK" or "UNLOCK" side

Hood switch <Vehicles with theft-alarm system>

Open the hood

Trunk lid latch switch <Vehicles with theft-alarm system> Open the trunk lid

Trunk lid lock key cylinder switch <Vehicles with theft-
alarm system>

Turn the key the unlock position

Column switch

Taillight switch

Turn the lighting switch from "OFF" to
"TAILLIGHT" position

Headlight switch

Turn the lighting switch from "TAILLIGHT" to
"HEADLIGHT" position

Passing light switch

Turn the dimmer/passing switch from "OFF" to
"PASSING" position

Dimmer switch

Turn the dimmer/passing switch from
"PASSING" to "DIMMER" position

Turn-signal light switch

Turn from OFF to ON

Windshield mist wiper switch

Windshield intermittent wiper
switch

Windshield low-speed wiper
switch

Windshield high-speed wiper
switch

Windshield intermittent wiper
interval adjusting knob

Rotate the windshield intermittent wiper interval
adjusting knob from "FAST" to "SLOW" when
the ignition switch is at "ON" position (The
ETACS-ECU sends a signal around the medium
knob position)

Windshield washer switch

Turn from OFF to ON

Transmitter <Vehicles
with keyless entry
system>

"LOCK" switch

"UNLOCK" switch

"PANIC" switch <Vehicles with
theft-alarm system>

SWITCHES WHICH SEND INPUT SIGNAL

REQUIREMENTS FOR SWITCHES SEND
INPUT SIGNAL

DIAGNOSTIC TROUBLE
CODE NO.

DESCRIPTION

REFERENCE
PAGE

11

ETACS-ECU fault

P.54B-12

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-8

SYMPTOM CHART

M1549000800071

12

Column switch fault or improper connection to the ETACS-
ECU

P.54B-13

13

Front-ECU fault

P.54B-20

21

Short circuit in communication line

P.54B-26

DIAGNOSTIC TROUBLE
CODE NO.

DESCRIPTION

REFERENCE
PAGE

SYSTEMS

SYMPTOMS

INSPECTION
PROCEDURE

REFERENCE
PAGE

Scan tool MB991502 communication is not possible.

A-1

P.54B-31

Tone alarm

Ignition key reminder tone alarm function
does not work normally.

B-1

P.54B-34

Light reminder tone alarm function does
not work normally.

B-2

P.54B-36

Seat belt tone alarm function does not
work normally.

B-5

P.54B-37

Central door locking
system

Central door locking system does not
operate.

C-1

P.54B-40

Some doors do not lock or unlock.

C-2

P.54B-46

All the doors do not lock or unlock with just
the door lock switch operation.

C-3

P.54B-57

All the doors do not lock or unlock with just
the door lock key cylinder key operation.

C-4

P.54B-58

All the doors do not lock with just the
driver's inside lock knob lock operation.

C-5

P.54B-59

Forgotten key prevention function does not
work.

C-6

P.54B-60

Power window relay

Power windows do not work at all.

D-1

P.54B-62

Power window timer function does not
work normally.

D-2

P.54B-67

Keyless entry system

Keyless entry system does not operate.

E-1

P.54B-69

The dome light, the hazard warning lights
and the horn do not operate through the
answerback function.

E-2

P.54B-71

The encrypted code cannot be registered.

E-4

P.54B-80

Windshield wiper and
washer

Windshield wiper does not operate.

F-1

P.54B-82

Any of the windshield wiper switch
positions is defective.

F-2

P.54B-87

Windshield wiper does not stop at the
predetermined park position.

F-3

P.54B-90

Windshield intermittent wiper interval
cannot be adjusted.

F-4

P.54B-95

Windshield washer does not work.

F-5

P.54B-98

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-9

DEFECTS FOUND BY INPUT SIGNAL
CHECK

If the input signal check finds a defect, follow the
table below to check.

Seat belt warning light

Seat belt warning light does not work
normally.

G-1

P.54B-104

Ignition key hole
illumination light

Ignition key hole illumination light does not
work normally.

H-1

P.54B-110

Headlight, taillight

Taillights do not illuminate.

I-1

P.54B-118

Headlights (low-beam) do not illuminate.

I-2

P.54B-122

Headlights (high-beam) do not illuminate.

I-3

P.54B-128

Headlights do not illuminate when the
passing switch is operated.

I-4

P.54B-133

The high-beam indicator light does not
illuminate.

J-5

P.54B-135

The headlight automatic shutdown function
does not work normally.

I-6

P.54B-141

Headlight dimmer switch automatic
resetting function does not work normally.

I-7

P.54B-143

Flasher timer

Turn-signal lights do not flash when the
turn-signal light switch is turned on.

J-1

P.54B-144

Hazard warning lights do not flash when
the hazard warning light switch is turned
on.

J-2

P.54B-149

Fog light

Fog lights do not illuminate when the fog
light switch is turned on.

K-1

P.54B-151

Fog lights do not go out when the
headlights (low-beam) are turned off while
the fog lights are on.

K-2

P.54B-157

Dome light

The dome light does not illuminate.

L-1

P.54B-158

The dome light dimming function does not
work normally.

L-2

P.54B-161

Theft-alarm system

Theft-alarm system is not armed
("SECURITY" indicator light does not
illuminate)

M-1

P.54B-166

The horn does not sound when the theft-
alarm system is triggered.

M-2

P.54B-173

The headlights (high-beam) do not flash
when the theft-alarm system is triggered.

M-3

P.54B-181

The panic alarm function does not work.

M-4

P.54B-181

SYSTEMS

SYMPTOMS

INSPECTION
PROCEDURE

REFERENCE
PAGE

SWS DIAGNOSIS

TSB Revision

SIMPLIFIED WIRING SYSTEM (SWS)

54B-10

SYMPTOMS

INSPECTION
PROCEDURE

REFERENCE
PAGE

The ignition switch (ACC) signal is not sent to the ETACS-ECU.

N-1

P.54B-183

The ignition switch (IG1) signal is not sent to the ETACS-ECU.

N-2

P.54B-185

The key reminder switch signal is not sent to the ETACS-ECU.

N-3

P.54B-187

The hazard warning light switch signal is not sent to the ETACS-ECU.

N-4

P.54B-190

The fog light switch signal is not sent to the ETACS-ECU.

N-5

P.54B-194

The driver's seat belt switch signal is not sent to the ETACS-ECU.

N-6

P.54B-197

The driver's or front passenger's door switch signal is not sent to the
ETACS-ECU.

N-7

P.54B-202

The door switches signals is not sent to the ETACS-ECU.

The driver's or front passenger's door lock key cylinder switch signal is
not sent to the ETACS-ECU.

N-8

P.54B-212

The driver's or front passenger's door lock actuator switch signal is not
sent to the ETACS-ECU.

N-9

P.54B-220

The rear door lock actuator switch signal is not sent to the ETACS-ECU.

The door lock switch (incorporated in power window main switch and
power window sub switch) signal is not sent to the ETACS-ECU.

N-10

P.54B-237

The hood switch signal is not sent to ETACS-ECU.

N-11

P.54B-245

The trunk lid latch switch signal is not sent to ETACS-ECU.

N-12

P.54B-250

The trunk lid lock key cylinder switch signal is not sent to ETACS-ECU. N-13

P.54B-254

Column switch

The taillight switch signal is not sent to
the ETACS-ECU.

N-14

P.54B-258

The headlight switch signal is not sent to
the ETACS-ECU.

The passing light switch signal is not
sent to the ETACS-ECU.

The dimmer switch signal is not sent to
the ETACS-ECU.

The turn-signal light switch signal is not
sent to the ETACS-ECU.

The windshield mist wiper switch signal
is not sent to the ETACS-ECU.

N-15

P.54B-260

The windshield intermittent wiper switch
signal is not sent to the ETACS-ECU.

The windshield low-speed wiper switch
signal is not sent to the ETACS-ECU.

The windshield high-speed wiper switch
signal is not sent to the ETACS-ECU.

The windshield intermittent wiper
intervals adjusting knob signal is not sent
to the ETACS-ECU.

N-16

P.54B-262

The windshield washer signal is not sent
to the ETACS-ECU.

N-15

P.54B-260