Mitsubishi 3000GT 1997 User Manual

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MITSUBISHI

MOIORS

Workshop

Mqnuql

chossis

SUPPTEMENT

3ClCloGiT'97

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v

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Pub. No.

PWUE9I

l9-F

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MITSUBISHI

3000GiT

WORKSHOP

SUPPLEMENT

FOREWORD

This Workshop Manual contains

removal,disassembly,
reassembly and installation, etc.
mechanics.
Use the
manual

TECHNICAL INFORMATION MANUAL

following manuals

required.

as

MANUAL

procedures

inspection,adjustment,

for

in

combination

PYUE92O1

for

service

with this

General
Fuel
Service Brakes

Supplemental
System

(SRS)

Restraint

E
IE
E
E

v

WORKSHOP

CHASSIS GROUP

ENGINE
ELECTRICAL

PARTS CATALOGUE

All information,

tions contained
time of
to

obligation.

publication.

make

MANUAL

GROUP

WIRING

illustrations

in this manual are current as at the

changes

at any

We,

PWUE9119
(Loose-leaf
PWUE9119-E
(Supplement)

PWEEN!trN

(Loose-leaf
PHUE92O1

(Loose-leaf
PHUE92O1-D
(Supplement)
PHUE92O1.E

(Supplement)

8608K4onAn
8608K454Atr
8608K406An
8608K407An

product

and

however, reserve the right

time without

edition)

edition)
edition)

prior

descrip-

notice

or

v

o Mitsubishi Motors Corporation

July 1996

WARNINGS
(sRs)

WARNING!
(1)

(2)
(3)

(4)

EQUTPPED

lmproper
can lead
or

to the driver
lt it is
drying after
Service
only
MITSUBISHI
528

any component

possible

or

at an authorized

-

Supplemental Restraint

REGARDING

service

personal

to

(from
that

painting,

maintenance

dealer

of the

OF

VEHTCLES

or maintenance

iniury
rendering

the

remove

MITSUBISHI

personnel

or death_to_service

SRS components

oJ any

SRS or

oJ

the

the

SRS components

SRS component

dealer.

must

System

any SRS-related

SUPPLEMENTAL

any component

SRS inoperative).

are

subjected

thoroughly

(SRS),

before

component.

of the

personnel

to heat

(air

bag module,

or

SRS-related

review

this

beginning

SRS, or any

(from

manual,

RESTRAINT

SRS-related

inadvertent

over

93"C

SRS-ECU)

component

and

any service

firing

(200'F)

especially

SYSTEM

component,

of the

in

baking

beforehand.

must

be

or maintenance

iir Uagl

or in

performed

its

GROUp

of

u

lJ-

v

GENERAL

GROUP OO

GENERAL

-

Vehicle ldentification

00-1

i'

VEHICLE I DENTI

FICATION

MODELS

Model code
Zl6AMJGFL6 6G72(2,972m/)
Zl6AMJGFR6

Engine model Transmission model Fuel

A

JMBMJ216A PY

TTT-tTTTT_t

12

3 4 5

W6MG1 MPI

CHASSIS

The

chassis

engine

NUMBER

number is

compartment.

7I

6

supply system

stamped on the toeboard inside

000001

A

T

I

10

the

v

Asia

1.

2.

Japan

MITSUBISHI

3.

A - For Europe,

-

B

Body style

4.
M - 2-door

Transmission

5.
N - 5-speed

-

6-speed

J

Development

6.
216

right hand

For Europe, left hand drive

hatchback

type

manual transmission

manual transmission

order

-

2,972 m I

(Full

drive

time 4WD)

7.

8.

L

10.

Sort

A - Passenger

Model

Plant
Serial

year
P-1993
R-1994

s-1995
T - 1996
v-1997

-

Y

Ohe Motor Vehicle Works

number

car

00-2

GENERAL

-

Major

Specifications

MAJOR

SPECIFICATIONS

Dimensions

Items
Overall length

Overallwidth
Overall height
Wheelbase
Track-front
Track-rear
Ground
Overhang-front
Overhang-rear mm

Angle

of approach

Angle

of departure

mm

mm

(unladen)

mm

mm

(in.)

mm

clearance

(in.)

(in.)

(in.)

(in.)

(unladen)

(in.)

mm

(in.)

degrees

degrees

mm

(in.)

mm

(in.)

Zl6AMJGFL6
4,570

o

1,84O

@

1,285

@

2,470

@

1,560

!9

1,580

@

140

€)

1,030

@

1,070 (42.1)

o

11.0"

@

17.6'

o

(179.9)
(72.4\
(50.6)
(97.2)
(61.4)
(62.2)

(5.5)

(40.6)

Zl6AMJGFR6

(179.9)

4,570
1,84O (72.4)

(50.6)

1,285

(97.2)

2,470
1,560 (61.4)
1,580 (62.2)

(5.5)

140

(40.6)

1,030

(42.1)

1,070

11.0'

17.6'

ooFoo64

Weight

Items
Kerb

weight kg
Gross
Max.

axle weight

vehicle

(lbs.)

weight

kg

Seating capacity

Items

Seating

capacity

Engine

Items

Model
Total

displacement m

Transmission

Items
Model

Type

(lbs.)

kg

(lbs.)

I

f ront

rear

Zl64MJGFL6

(3,858)

1,730

(4,674)

2,120

(2,535)

1,150

(2,249)

1,O20

Zl64MJGFL6
4

Z1

6AMJGFL6

6G72

2,972

Z1

6AMJGFL6
W6MG1
6-soeed manual

Z.I64MJGFR6

(3,858)

1,730

2,120 (4,674)

(2,535)

1,150

(2,249)

1,02O

Z1

6AMJGFR6

4

Zl6AMJGFR6
6G72
2,972

Z1

6AMJGFR6
W6MG1
6-soeed manual

LL)

Y

13-1

T

FUEL

CONTENTS

v

GENERAL

Outline

SPEC|F|CATTONS

General Specifications

of Change

................

......2

.............2

............2

.........2

ON.VEHICLE

coMPoNENTS

Power Supply and
Fuel Pump

INSPECTION OF

........

MPI

lgnition Switch-lG

...................... 3

......................... 5

.......3

v

13-2

GENERAL

FU EL - General/Specif

ications

OUTLINE OF

The maintenance
control

relay

CHANGE

service

fuel

and

points

pump

control

SPECIFICATIONS

GENERAL

Items
Engine

control

unit

SPECIFICATIONS

ldentification

No.

model

Vehicles without
immobilizer system

Vehicles
system

below

have been established to correspond

relay which were

with immobilizer

previously

Specifications
E2T61379
E2T61380
E2T61383
E2T61384

integrated.

<L.H.
<R.H.
<L.H.

<R.H.

to the

vehicles>

drive

vehicles>

drive

drive vehicles>

vehicles>

drive

separation of the engine

L

J

v

o

FUEL

-

On-vehicle

Inspection

of MPI

Components

13-3

,ly

oN-vEHtcLE

POWER

SUPPLY

tNSpECTtON

AND

OF Mpt

IGNITION

SWITCH.IG

COMPONENTS

Battery

rlrlrlrlrl

lgnition

switch

[G]

Engine
unit

control

YVV

-j- -J-, L

l$il:;llG;;pi;l

Engine

control unit

pH

-\tr

V

I

A?

V

-ilri

?FU1943

9FU0l0l

13-4

FUEL - On-vehicle

Inspection of

Measure
input voltage.

o

Engine control unit connector:
Disconnected

MPI Components

the ignition switch

(lG)

terminal

?FUt928

lgnition switch

OFF 0-1
ON SV

power

Measure the

relay.

control
o

lgnition

o

Control

Disconnected

Voltage

SV

Check
to

earth, between

the control relay.
o

Engine control unit
Disconnected

o

Control
Disconnected

switch:
relay

(V)

for an open-circuit,

relay

supply

OFF

connector:

the engine

connector:

Voltage

connector:

(V)

voltage

or a short-circuit

control unit and

of

the

Repair the
harness.
(lgnition

-

switch
or check
ignition
switch

oz
the

Repair the
harness.
(Battery

@
(Battery

@

Repair the

harness.

(@

(@

25)

s)
a)

z

r

-

-

-oa;

-rz,

)

CONTROL

RELAY

?FU1930

INSPECTION

?FU1931

Measure
o

.

power

voltage to

Control relay connector:
Connected

Engine

(1)

Check

control unit

for continuity

Connected

Engine
Cranking
Racing SV

Battery
voltage

Not

supplied

Supplied

(2)

Replace the control

the actuator.

connector:

Voltage
8V

(V)

or higher

between control

relay terminals.

Terminal No.

1 2 3

C

C-

--{

o-

relay if faulty.

Malfunction
of control
relay or
engine
control unit

4

---c

----@

FUEL PUMP

FUEL

-

On-vehicle Inspection

of MPI

)

-t

Gomponents

13-5

r)

pump

Fuel
relay No.2

Fuel
relay

control relay

pump

No.1

or

\\

<t

11-!

:

*/

1,3-6

FUEL - On-vehicle

lnspection of

MPI

Components

Equipment
connector

-g-

lml

il ltatl

lgnition switch

Fuel
relay No.1

|Gl

pump

Fuel
relay No.2

Resistor
(for

pump

Equipment

@

conneclor

pump)

fuel

-N/-

t@t

Equipment

O

connector

side

Equipment

@

side
connector

@

pump

Fuel

O

check terminal

Harness
connector

side

I

,l

Engine control

NOTE

-:

Vehicles

unit

with immobilizer

8 or

22*

Engine

system.

control

?FU203?

unit connector

9FU0l0l

FUEL

-

On-vehicle

Inspection

of MPI

Components

13-7

HARNESS

INSPECTION

l-Y-l

l-X-l

L____\z_J

Check the

o

Apply

battery

terminal

Check the
o

pump

Fuel
Disconnected

pump.

fuel

voltage

and

operate the

earth

circuit

connector:

to the

checking

pump.

of the fuel

pump.

Repair

the
narness.
(@z­Earth)

v

Check

for

I-\-----l

l;\---=:l

tol

o

and the
o

checking

Connector:

continuity

terminal.

Disconnected

between

the fuel

pump

F

I

o

Check for
terminal
between

o
o

r

Disconnected

continuity

and the fuel

the resistor (for

pump

Fuel
Disconnected

Resistor (for
Disconnected
Fuel

pump

relay

fuel

connector:

between

pump

fuel

No.2

connector:

pump)

connector:

the

relay

pump).

checking

No.2,

and

T

Check

for

to

earth,

and
o

o

Disconnected

i

an open-circuit,

between

the

engine

control

pump

Fuel
Disconnected
Engine

relay

control

the fuel

unit connector:

unlt.

No.2

or

a short-circuit

pump

relay

connector:

No.2

Repair

the
narness.
(@t-

r)

O

Repair

the
harness.
(Ot-

z)

@
(Oz-

z)

O

Repair

the

harness.

-zr;

(@

r

FUEL

-

On-vehicle

Inspection

MPI Components

of

?FU1928

for continuity

Check

No.2

relay

o
o

pump

Fuel
Disconnected
Resistor
Disconnected

Measure
fuel

o

the

pump

pump

Fuel
Disconnected

lgnition
OFF
ON

and the

relay

(for

fuel

power

No.1.

relay

relay

switch

between

resistor

No.2 connector:

pump)connector:

supply

No.1 connector:

the fuel

(for

fuel

voltage of

Voltage
0

SV

pump)'

(V)

pump

the

Repair the
narness.
(O+-

r)

@

Repair the
narness.
(lgnition

-

switch

+)or

e

@

the

check

switch.

ignition

rJ

,J

tFt
I-E-l

t ____v__J

?FU2038

Check
to earth

and
o

o

Check
relay No.1 and

.
o

Check
to earth,

between

engine

the

Control
Disconnected

Engine
Disconnected

Control

Disconnected
Control
Disconnected

and
r

o

relay

control

for continuity

relay
relay

for an

between

the fuel

pump relay No.2

Fuel
Disconnected

pump

Fuel
Disconnected

pumP.

open-circuit,

for an

or

pump

fuel

the

unit.

control

connector:

unit connector:

between

control

the

No.'l
No.2

open-circuit,

the

connector:

relay

connector:
connector:

or

pump

fuel

connector:

a short-circuil

a short-circuit

No.1

relay

the control

No.2.

No'2

relay

the

Repair
harness.
(@z-s

zz)

or

the

Repair
narness.
(@t-

s)

@

(@r-

s)

O

the

Repair
narness.
(@r-

z)

O

t,

FUEL

-

On-vehicle

Inspection

of MPI

Components

13-9

?FU1931

FUEL PUMP
(1)

Check for

terminals.

Battery
voltage

Not

supplied

Supplied

(2)

Replace

the fuel

RELAY

No.1 INSPECTTON

continuity

1

pump

between

Terminal

2

e--

relay

No.1 if

fuel

No.

fautty.

pump

3

1-)

relay

4

a)

@

No.1

rtz

35-1

SERVICE

CONTENTS

{'

BRAKES

SERVICE ADJUSTMENT

ABS

Operation Check

Valve Relay
HYDRAULIC
G SENSOR

and Motor Relay

UNIT

PROCEDURES

Check

<ABS>

....................22

.....,.20

.....20

........21

..........21

(L,)

35-2

SERVICE

BRAKES - General/Service

Specification/Special

Tools

GENERAL

OUTLINE

.

The hydraulic unit

.

The ABS

o

The

SERVICE

Items

Hydraulic unit

Resistance
G-sensor

SPECIAL

OF CHANGES

valve relay and

G-sensor

SPECIFICATION

solenoid

between

output

voltage

TOOLS

has been

and the

ABS-ECU have been

internal resistance

valve

speedsensor

V

made

the ABS

terminals

more lightweight and compact.

motor relay

have

been

separated

changed.

o OUT

IN

kO

installed

When

removed

When
mark facino down

from the

with

arrow

hydraulic unit.

-

4.54

-2.6

value

Standard

4.04

8.04 - 9.04

1.4 - 1.8

2.4

3.4 - 3.6

(

Tool

Number

MB991529

M8991638

M8991348

Name
ABS check

harness

ABS check
narness

Test harness set

Use

For checking
when

using

For checkino of

For checking

of ABS

the

of G-sensor

(Diagnosis

ABS warning lamp)

ABS

code display

(L

SERVICE

BRAKES

-

ABS

Troubteshooting

35-3

i.

t

ABS

STANDARD

lnspection
(Refer

TROUBLESHOOTTNG

FLOW

No

diagnosis
or MUT-ll
communtcate

to P.35-14.)

code

can't

chart for

trouble

OF

symptoms

DIAGNOSTIC

Verify

TROUBLESHOOTING

complaint

Reoccurs

I

VY

I
oiaonosis

J

Read (and

diagnosis

(fault
memories
them.

codes

duration

(Refer

.----l-

Read

trouble

Inspection
(Refer

chart for

to P.35-6.)

cooe oisotaveol-

write

down)

and

tfre

and

are

how

erased).

to P.35-5.)

'

t

codes

Diagnosis

diaqnosis

all

displayed
service
manv

And

F""d,

l(Rerer

codes

c

oes not

I

"S""rb

to P.35-4.)

iagnosis

ciata

times

erase

No

Diagnosis

code displayed

reoccur

a"d"

code

displayed

I ntermittent

code

-t
o Diagnosis

N

I

malfunction

code

NOTES
The

Phenomenon

System

{t

ABS

ABS
braking

Diagnosis

WITH

phenomena

check

REGARD

listed

sound

operation sound

operation

(Long

distance)

detection

TO DIAGNOSIS

in

the following

Explanation

When
theengine

performed,

1.

sound

2.

sound

3. When
brake
(Thump:

For road
for vehicles
advise
being

too

condition

can

table

phenomenon

of

starting

the

tfr"

compartment,

and is

of the motor

generated

is

ABS

operates,.sound

application

suspension;

surfaces

with

ABS

customer

overconf

vary

depending

are not

"n

not

abnormal.

but

this is

an

abnormalitv.

inside

the

atong

with vibration

and release.

squeak;

rr"

can sometimes

to

drive

safely

ident.

on the

because

ABS hydraulic

of the

generated

is

from

tyres)

longer

be

on such

ioads

diagnosis

the

system

unit

brake
the vehicle

thanlhat

by lowering

code.

operation

check

operation (whine)

pedal. (scrapfng;

chassis

for

other

vehicles.

the

vehicle

is

deing

oib

to repeated

X.corJingty,

speed

"nJ"not

35-4

SERVICE

BRAKES

-

ABS

Troubleshooting

W

4

NEE

diagnosis code

When

No.24

is output

DIAGNOSIS

DIAGNOSIS

With thE MUT.II

Connect

diagnosis

Caution

Turn the

necting the

Without

1. Use

2.

the MUT-II

the MUT-II

the special

No.1.

Turn the
the diagnosis

lamp.

FUNCTION

CODES CHECK

codes.

ignition switch

MUT-II.

ignition switch

to the diagnosis

off before connecting

tool to eadh diagnosis

to ON

codes

from the flashing of

connector, then check

and then take a

or discon-

connector

the ABS warning

terminal

reading

of

oN

OFF

secs.

r

Pause time Tens

3 secs. signal

no diagnosis

When

Place
division
2 secs.

is

code

Units
signal

14tO173

output

SERVICE

BRAKES

-

ABS

Troubteshooting

35-5

ffiG:-=\\

U\\ED

ERASING
with

the

MUT-rr

1.

Connect
erase

the

NOTE
Commands

memory
stop the
used

again.

2.

Check the
has

been

Without

1.

the

Use the
No.1.

2. Turn

the--ignition
switch
below.

codes

will

DIAGNOSIS

the
diagnosis

cannot

has

been erased.

engine

CODES

MUT-II

codes.

be received

and

start it

diagnosis

erased.

MUT-II

special

tool

to

switch

off

and

on ten

Once this

has

be erased.

to

the

To
again.

codes

earth

diagnosis

to

ON and

times

been

diagnosis

from

the

check

to

the

The

MUT-II

confirm

connector

turn

as shown

done,

all

in

of the

connector,

MUT-II

diagnosis

after

codes,

can then

that

the

memory

terminal

the

stop

lamp

the

illustratioh

diagnosis

then

the

be

&

lgnition

ABS

warning

ABS-ECU

memory

switch

lamp

ON
OFF

ON

OFF

j

within

3sec.

i
#

within

i
i

1

sec.

First

within

i
i

1

sec.

Second

i

I

Third

i

within

;

t

sec.i,

T;rh*

i

i

Rtter

_i

erasing

14CO120

1

second,

is

complete.

35-6

SERVICE

BRAKES

-

ABS

Troubleshooting

INSPECTION

Inspect according

Diagnosis

No.

code

11
12

13

14
15
16

21

22

23
24

26 G

CHART

to the inspection

Inspection

Front right

left wheel speed

Front
Rear right

Rear left

Wheelspeed

Power

right wheel speed

Front

left wheel speed sensor

Front

right wheel speed sensor

Rear
Rear left

sensor

FOR DIAGNOSIS

chart

item

wheel speed sensor

sensor

wheel speed sensor

wheel speed sensor

sensor

supply system

wheel

speed

sensor

CODES

that is appropriate

sensor

for the malfunction

Diagnosis

Open

content

circuit

Abnormal output

Short circuit

Ooen-crrcuit.
abnormal

short-circuit

signa.

output

signal

or

code.

Reference

35-7

35-8
35-8
35-9

35-9

page

38

41

42
43

44
45
46

47
48
51

53
63

switch system

lamp

Stop
Front right solenoid

left solenoid

Front
Rear right solenoid
Rear left solenoid

Front right solenoid

left solenoid

Front

right solenoid

Rear
Rear left solenoid
Valve relay

Motor relay,

valve

valve

valve lN

valve

valve OUT

valve OUT

motor

ABS-ECU

lN

valve

lN

lN

valve OUT

OUT

35-1 0

1

35-1

35-12

35-1 3

Reolace
ECU.

the

ABS-

SERVICE

BRAKES

-

ABS

Troubteshooting

35-7

INSPECTION

9ode

The
speeo

Measure
E-10
.

.

{,

No.l1

ABS-ECU

sensors.

at the

Disconnect
sure from
Resistance
73,

OK: 1.4

the

69 and 70,71

-

PROCEDURE

,12,13,14

determines

ABS-ECU

the

connector

harness

values

1.8

kO

that

connector.

and mea-

side.

between

and 72,24

46

an open

Wheel

and

and

speed

circuit

FOR

sensor

occurs

in

Check
A-12,

Wheel

DIAGNOSIS

open

more

than one

the

followinq

A-33,

C-26,

speed

sensor inspection.

CODES

circuit

line

of wheel

conn'ectors.

E--i3

and

E-15

Probable

a

Malfunction

a

Malfunction

a

Malfunction

cause

of

wheel
of wirinq
of ABS-ECU

speed
harness

Check
wheel
and repair

Replace

sensor

or

the

harness

speed

sensor

if necessary.

the

wheel

connector

wire

between

and ABS-ECU.

speed

sensor.

each

v

35-8

SERVICE

BRAKES

-

ABS

Troubleshooting

No.15

Code

speed

A wheel
circuit).

Wheel speed
soeclron.

speed sensor

Wheel
spectron.

Wheel

sensor

sensor

output

speed sensor

outputs an

installation

abnormal signal

in-

voltage in-

(Abnormal

(other

Wheel speed

Check the
wheel speed sensor
and

than an

repair

output

if necessary.

signal)

open or short-

inspection.

sensor

harness

wire between

ABS-ECU,

and

Probable

.

lmproper

o

Malfunction of

o

Malfunction

o

Malfunction

.

Malfunction

.

Malfunction of

each

cause

installation of

wheel
rotor

of
of wheel bearing
of wiring harness

ABS-ECU

wheel speed sensor

sensor

speed

Replace the wheel speed

Replace the rotor.

or connector

sensor.

Gode

The voltaqe
specified
output.

No.l6

value.

Caution
lf battery
returns

Before

Measure
E-10.
o

r

to standard

carrying

at

Disconnect

from the

sure

the engine.

Start

-

Body earth

83

System

OK:

Power supply

ABS-ECU

of the

lf the voltage

voltage

drops

out

the ABS-ECU

the connector

harness side.

Voltage

voltage

power

supply drops

relurns

or

value,

following

the

connector

mea-

and

between

system

to the specified

lower or

rises during

this code

is no

inspection,

rises higher

value, this code

inspection,

longer output.

check

following connectors.

the

Check

C-59, C-66

C-25,

trouble

Check

than the

no longer

is

this code

the

and C-78

symptoms.

Probable cause

.

Malfunction

.

Malfunction of ABS-ECU

will be output

battery

level,

of wiring harness

or connector.

as well.

refill it if necessary.

and

the harness

Check
ignition-switch and the
reparr rl necessary.

lf the

voltage

wire between

ABS-ECU,

the

and

tI)

SERVICE BRAKES

-

ABS Troubteshooting

35-9

Code No.21

These

codes

o

When
does

.

Wnen

.

When the
due to

Measure

E-1 0.

.

Disconnect
sure

.

Resistance values

73,
OK: 1.4

are output

an open

not

output

a chrpped

sensor output

a defective

at the ABS-ECU

the connector

from

the harness

69 and 70,71

-

1.8 kf)

,22,23,24

at the followinq

circuit cannot

any signal

ptugged-up

or

sensor or a waroed

between

and 72,74

be fou'nd,

during

drops

connectors

and mea-

side.

46

Wheel

rotor

and anti-lock

and

and

speed

times:

but more

driving

tooth,

rotor.

at 8

sensor

than one wheel

km/h

or higher.

etc. is detected.

control is

continuouslv

Check

the following

A-12, A-33,

short

circuit Probable

speed

sensor

carried out

C-26, E-13

connectors.

and

E-15

.

Malfunction

o

Malfunction

o

Malfunction

o

Malfunction

.

Malfunction

cause

of wheel
of rotor
of wheel
of wiring
of ABS-ECU

speed
bearino

harnesi

Check the harness

wheel

speed sensor

and repair

Replace

Replace

the wheel

the rotor.

sensor

or

connector

wire

if necessary.

speed

between

and ABS-ECU,

each

sensor.

,s,

&

Code No.26
signal

Output is
.
.

Check

Measure

o
.

.

Check the

abnormal)

provided
G-sensor output
G-sensor

Disconnect
ments
lgnition
Voltage
OK: 2.3-2.7

system harness

G-sensor.

at ABS-ECU

connectors

on harness

switch:

between

following

G-sensor

in

the following

drops

below 0.5V or rises

is

(Refer

to P.35-22.)

connector E-1

and make

side.

ON

No.62

and 45

V

connector.

0.
measure.

(open-,

above 4.5V

system

cases.

broken or shorted

E-10

short-circuited

Replace

Check the following

Check trouble

Check harness
ECU,

Replace

or

G-sensor

and repair

ABS-ECU.

Probable

o
.
o

connector.

symptoms.

between
if necessary.

cause

G-sensor
Harness
ABS-ECU

defective

and

connector defective

defective

D-27

G-sensor and ABS-

;

35-10

SERVICE

BRAKES

-

ABS

Troubleshooting

corle No-38 Stoo lamp

following

at the

output

are

codes

These
a"

WH;ih;

for

on

.

wd;

lamp

stop

the

Does

oft

switch

Measure
.

Disconnect
measure

.

Stop

o

Voliage
OK:

iiop

minLtes

15

Aa6-ECU

inl

switch

lamP

stoP

normallY?

ABS-ECU

at

the

at

switch

lamp

6etween

System

ramp

dr

system.

the connector

harness

ON.

36

voltage

is

swiicrr

although

more
Oetermines

illuminate

connector

side.

-

bodY

switch

not b5

inat

ancl

E-1 0.

and

earth

times:
turned

ABS

the

there

system

(when the

off

not operating)

is

opeh

is an

stop

circuil'in

lamp

Stop
inspection.

lamp

Stop

the

Check

No.17

fuse

if necessary.

repair

the

Check

C-65

C-50,

switch

lamp

harness

switch

inspection

switch

harness

and

following

C-79

and

stavs

the

of

between

ABS-ECU'

the

connectors.

Probable

a

Malfunction

o

Malfunction

a

Malfunction

installation

dedicated

and

cause

of stop

harness

of

ABS-ECU

of

Replace

lamp

or

switch

connector

stop

the

lamp

switch

Check

following

the

connector.

the

Check

and

switch
necessary.

harness

ABS-ECU'

the

between

and

stop

reparr

lamp

ll

SERVICE

BRAKES

-

ABS

Troubteshooting

35-11

Code No.41,

The ABS-ECU
there

is

flows in

Solenoid
(Refer

to P.35-21.)

Measure
78

and ABS-ECU

r

Disconnect
measure

.

Continuity
terminals
OK:

HU

side

ABS-ECU
side

HU

side

ABS-ECU
side

always monitors
an open or
the solenoid

valve insDection

at hydraulic

at the harness

between

Conlinuitv

1234

tttl

30 31 78

5678

lttl

58

42,

43, 44,

short-circuit

even

though the ABS-ECU

unil

connector A-

connectors

the

connector

side.

the following

59 50

45, 46,

the solenoid

in the

E-10.

and

79

51

47,48

valve

solenoid

Solenoid valve

drive circuit. lt

coil or in a harness:

turns on it,

Check the

A-78.

Check the
draulic
rs necessary.

determines

and vice

following

C-25.

C-59 and E-10

harness

unit and ABS-ECU,

when

versa.

that

no

currenl

connectors.

between

and repdir

Probable

a

Malfunction

a

Malfunction

a

Malfunction

the hv-

cause

of harness
of hvdraulic
of Ai3S-ECU

or

connector

unit

Replace

the ABS-ECU.

35-12

SERVICE

BRAKES

-

ABS

Troubleshooting

Code

i:[1!_ AgS-ECU

Measure

94.
.

.

Measure
o

.

No.51

lCommentl

,eO to i iolenoid

sropf
cohiinues
valve
relay.

Solenoid

(Refer

to be

is off,

relay

Thi6 diagnosis

at

Disconnect

the

sure at

between

Voltage

System

OK:

at
Disconnect
measure
Resistance
OK:60-120O

valve
P.35-21.)

to

valve

ABS-ECU

at

Valve

continually

supplied

the

the connector

harness

voltage

the connector
the
between

insPection

relaY

monitors

even

coil

to five

ABS-ECU

is then

code

relay connector

side.

-

bodY

5

connector

side.

harness

82-47

though

or more

judges

and

earth

E-10.

the

output.

A-

mea-

and

solenoid

solenoid

the

solenoid

thal there

circuit.

drive

valve

coils even

problem

is a

Replace

Check

link No.7
necessary.

Check
A-94 and

no currenl

lf

relay

thougn

wltn

the

the

and

the

or if.current

is.on.

_tne

tne Ats5

valve

harness

valve

tollowing

or C-96

C-94

is being

solenolo

valve

relaY.

between

relay,

connectors.

and

fusible

repair

Probable

o

Malfunction

.

Malfunciion

o

Malfunction

o

Malfunction

if

cause

of valve
of
of
of hydraulic

relaY

harness

wiring

ABS-ECU

Check
relay
necessary.

unit

harness

the

ABS-ECU,

and

or connector

between

and

valve

rePair

if

Measure
78 and
.

.

HU SidE
ABS.ECU

side

HU
ABS-ECU

side

Measure
77 and
.

.

HU side

at

ABS-ECU
Disconnect
measure
Continuity
terminals
OK:

side

valve
Disconnect
sure at
Continuity
terminals
OK:

hydraulic

connectors

the connector

harness side.

the

at

between

Continuity

1234

3|o

5678

5|u

hydraulic

at

ielay

the connector

harness

the

between

Continuity

connector

unit

the

t|u ?1,

311

5|o

51,

connector

unit

connector

side.

the

11

A-

E-10.

and

following

J,

A-

A-94.

mea-

and

following

Check

A-78,C-25

Check
draulic
It necessary.

Check
A-77 and

the

unit

the

A-94

and

following

the

E-10

harness

ABS-ECU,

and

following

connectors.

between

connectors'

the

and

hY-

repair

the

Check

unit and

draulic

if necessary.

harness

valve

between

relay, and

the

repair

hY-

Reolace

ABS-ECU.

the

SERVICE

BRAKES

-

ABS

Troubleshooting

35-13

Code No.53

These

codes
when
not

operating,
When
s.etonds
When the

are output

the motor

the

motor relay

or more

motor relav

Caution
Because

should

MUT-II
ls

the sound

head?

A?:-ffi"t

Measure

77.
.

Disconnect
sure

.

Voltage
OK:

force'driving

be started

actuator

of the motor

relav

at motor

the

at the harness

between

System voltage

Motor

at the followinq

rela!

is on

etc.)

is off

(motor

continues

does not ooerite

test

insnection

relav

connector

connector

side.

5 - body

relay,

bul no
but

a signal is input

of

and

left to run

operating

(Rerer

and mea-

earth

motor

times:

sign-al is input

operating,

etc.)

the motor

for

Yes

to

A-

to the molor

to the motor

monitor

monitor

by means

a while

Check the

draulic

rr necessary.

Check the harness
link
necessarv.

after

unrt

No.7

and motor relay,

(motor

line

line for

5

of the

actuator

testing

harnesses

and ABS-ECU,

between

between fusible

Probable

o
.

is

.
.

is

completed.

the hv-

and repdir

repair

and

Malfunction
Malfunction
Malfunction
Malfunction

test

will

if

cause

of motor relav
of wiring harness
of hvdraulic
of ABS-ECU

drain

unit

the

or connector

battery,

the

engine

Measure

.
.

Measure
.

.

y.Blo_rrii"r",'"n

at ABS-ECU
Disconnect
sure
Resistance
OK:

Disconnect

sure at the harness

Resistance

earth
OK: 0. 1-0.3O

the

at the harness

78-88O

at ABS-ECU

connector

belween

the

connector

between

inspection (Refer

connector

and mea-

side

77-82

connector

and mea-

side.

65 - bodv

E-10.

E-10.

ro

Check the

draulic

unit and ABS-ECU,

if

necessary.

necessary.

Replace

Repair

Replace the

the

harness

hvdraulic

ABS-ECU.

between

Motor

the hv-

and reodir

earth. repair

unit.

Repair

Check

the harness

relay

and ABS-ECU,

essary.

if

between motor

and repair if

nec-

35-14

INSPECTION

an understanding

Get

CHART

SERVICE

TROUBLE SYMPTOMS

FOR

the trouble symptoms

of

BRAKES

-

ABS Troubleshooting

check according

and

to the

inspection

procedure

chart.

Trouble symptom

Communication

possible.

is not

the ignition

When

not illuminate.

After the engine starts,

ABS operation

Faulty

with MUT-II

key is turned to

lamp remains

the

Caution

1. lf

steering

with low

sudden
customer,

movements are

frictional

braking

check

resistance, or

is not being applied.

if the

problem

2. During ABS operation,
phenomenaare
prevent

the wheels

to intermittent

due

from locking and

Communication
Communication

"ON"

(engine

illuminated.
Unequal
Insufficient braking
ABS operates
ABS operates

ing
Large brake

braking

conditions

made

with
with ABS only

stopped),

power

under
before

pedalvibration

when driving at

when

occurred

the brake

pedal

changes

is

possible.

systems

all

the

on both sides

power

normal braking conditions

vehicle stops under

is not

possible.

is not

ABS warning

(Caution

2.)

high speed,

passing

Because
while driving

vibrate or

may

over

of this,

bumps,

under such

may not be able

in hydraulic

not

an abnormality.

lamp

does

normal brak-

or when driving

the ABS

when

may operate even

getting

conditions

pressure

inside the brake

on

road

Reference
page

5

JC- tO

35-17

35-1 8

surfaces

Inspection

proceoure
No.

1 35-1

2

3

4 35-17
5

though

information

from the

as these.

to be depressed.

Such

line

to

SERVICE

BRAKES

-

ABS Troubleshooting

35-15

,(,

rNspEcnoN

Inspection

Communication
(Communication

The cause
diagnosis

Measure at the diagnostic connector
.

Voltage between 16 and earth
OK: System

Measure
.

Continuity between 4 and

o

Continuitv between 5 and
OK:

Reolace the MUT-ll

is

line.

the diagnostic connector

at

Cohtinuitv

pRocEDURE

Procedure 1

MUT-II is not

with

with all systems

probably

a

voltage

defect in the

earth
earth

power

supply system

FoR TRoUBLE syMproMs

possible.

is not

possible.)

(including

Check the
A-11x. C-65. C-67 and

following connectors.

earth)

for the

C-79

Probable cause

o

Malfunction of the connector

.

Maliunction of the harness wire

Check the harness wire between the
power

repair if necessary.

and

Check the harness wire between the
diagnosis connector and earth, and
parr

rr necessary.

supply

and

diagnosis

connector

re-

ry

35-16

SERVICE

BRAKES

-

ABS Troubleshooting

Inspection

procedure

Communication
(Communication

When communication

in the ABS-ECU

circuit

Measure at diagnosis

ABS-ECU connector

and
.

Disconnect the connector

the harness side.

sure at

.

Continuity
terminals
OK: Continuity

ABS-ECU
side

Diagnosis connector

stoe

Measure at
.

Disconnect the

sure at the harness side.

o

lgnition switch

.

Voltage between

OK: System

ABS-ECU connector

with the MUT-ll

connector C-70

between

connector and

ON

83 body earth

voltage

2

MUT-II is not

with

with ABS only

power

E-10.

and mea-

following

the

38

7

is not

circuit or an open circuit

68

1

E-1 0.

mea-

possible.

is not

possible,

Check
C-27,C-70

Gheck the
C-25, C-66

possible.)

probably

the cause

in the diagnosis

is

following connectors.

the

E-10

and

following connectors.

and C-78

an open

output circuit.

Probable cause

.

Blown fuse

o

Malfunction of wiring harness or connector

o

Malfunction

of ABS-ECU

the harness between the ABS-

Check
ECU and diagnosis connector, and
pair

if necessary.

Check the

inside the
ECU, and repair

harness

junction

if necessary.

between

block

fuse No.3

ABS-

and

re-

Measure

o

Disconnect
sure at the

.

Continuity
earth
OK: Continuity

ABS-ECU connector

at

the connector and
harness side.
between

55, 56 - body

E-10.

mea-

SERVICE

BRAKES

-

ABS Troubleshooting

35-17

Inspection

When ignition
ABS warning

lf the lamp
supply circuit,
and the ABS-ECU.

Fuse inspection,

Measure
.

Disconnect

sure at the male

o

lgnition

o

Does
illuminate
earthed?
OK: llluminates

Check the harnesses

ABS-ECU

Repair,

Procedure

key

lamp

does not illuminate,

a_blown lamp

Multi-purpose

at connector

switch:

the ABS

and

if necessary.

D-16

the

ionnector and mea-

oin.

ON

warning lamp

when

connector D-16.

3

is turned

o'ON"

to

does not illuminate.

the

bulb, an open

terminal

between the

cause may

fuse

7 is

be: an open

cirbuit between

(engine

Refer
a Blown Fuse.

Check whether
bulb is burnt

Check the followinq
C-68.

stopped),

circuit in the lamp

the ABS warning

to Inspection

the

ABS warning

out.

D-04

C-78.

ana D-45

power

la'mp

Service Points

lamp

connectors.

Probable

o

Blown
.
o

for

fuse
Burnt out
Malfunction

ABS warning

cause

Replace

lamp

the ABS

of wiring hirness

bulb

or connector

warning

lamp

bulb

Inspection

Even
remains

The cause is

Procedure

after the

illuminated.

probably

NOTE
This trouble
normal)

Disconnect

o

Does the ABS warning

.

Disconnect

.

lgnition

o

Does the ABS

Check the harnesses
ABS-ECU.

symptom is limited

and the

switch:

diagnosis

connector D-16

ABS-ECU

ON

warning

Repair. if

necessarv.

4

engine is

a short-crrcuit in

code is a normal

and turn

lamp remain

connector

lamp

switch off?

belween

the combination

started,

the ABS warning

the ABS

to cases

the ignition

illuminated?

E-10.

switch

warning

lamp illumination

where

communication

diagnosis

to ON.

meter

and the

code.

lamp

circuit.

with

Probable

a
a

a

the MUT-II

Replace

the

cause

Malfunction
Malfunction
Malfunction

combination meter.

of combination
of ABS-ECU
of wiring

possible

is

meter

harness

(ABS-ECU

power

supply is

35-18

SERVICE

BRAKES

-

ABS

Troubleshooting

Inspection

Brake

This varies
pioOfem

out the

Wheel speed
speclron

operation

depending

Ciagnbsis

following

Procedure

5

is abnormal.

driving

on the

isAifficutt.

inspection

sensor

Howeier,

installalion

conditions

if a normal

in-

the

and

diagnosis

Rotor

surface

road

code

inspection.

conditions,

is displayed,

so

carry

Probable

a

lmproper

a

lncorrect sensor

a

Foreign

a

Malfuhction

a

Malfunction

a

Malfunction

o

Malfunction

a

Malfunction

installation

material adhering

cause

harness

of wheel

rotor

of

wheel bearing

of

hydraulic

of

ABS-ECU

of

Replace

of wheel

contact

to

sensor

speed

unit

wheel

the

sensor

speed

wheel speed

speed

sensor

sensor.

the

Check

A-33, C-26,

A-12,

Measure
.

Disconnect

sure at

.

Resistance
nals
OK:

(The
ihould

spections

the

Check
E-10

following

ABS-ECU

at

the

46-73,

-

1.4

sensor

be

are carried

following

harness side

the connector

69-70,71-72

moved

connectors.

E-15

and

E-13

connector

and

value between

1.8 kC)
harness

and

connector

and

these

while

out.)

connector.

C-29.

mea-

terml­74'75

in-

SERVICE

BRAKES

-

ABS

Troubteshooting

35-19

SERVICE

The

following

1.

When

Item

No.

11

DATA

the

12
13

14
16

ABS-ECU
age

17

3B

G-sensor

Stop lamp

REFERENCE

items

can

system

Check

Front-right

sensor

Front-left

Rear-right
sensor

Rear-left

is

ltem

wheel

wheel

wheel

wheel

power

output

switch

be read

normal

speed

speed

speed

speed

supply

voltage

TABLE

by the

sensor

sensor

vott-

MUT-II

from

Checking
Do

a

lgnition
monitor

Vehicle

Perform

Depress

the

ABS-Ecu

Requirements

test run

switch

power

voltage

is

stationary.

actual running.

the

brake

supply

pedal.

input

voltage

data.

and valve

NormalValue

Vehicle
displayed
speedometer
and
identical.

System

2.4

Displayed
rises

drops

ON

speeds

MUT-II

voltage

-

2.6V

value

above

below

on the

are

or

2.5

V.

2.

When

When

ACTUATOR

The

MUT-II

the

the

diagnosis

activates

ABS-ECU

TEST

NOTE

1.

lf

the ABS-ECU

2'

Actuator
testing

Activation pattern

Hydraulic
pressure

increases
Hydraulic

Sote-

pressure

noid
vatve

l19r9s ,. i

Hydraulac
pressure

decreases

40-45

ON

Pump
motor

OFF

testing

exceeds

-l
I
i

i
i

!
i

tr

i

msi

shut

off ABS

system

stops

REFERENCE

the

following

runs

down,

is

only

10

km/h,

Start

of forced

actuation

actuator

possible

forced

Release

operation.

the ABS-ECU,

the

TABLE

actuators

when

actuation

for

testing.

testing

cannot

the vehicle

willcancels.

ACTUATOR

No.

01

02

03

the

MUT-II

pedal.

brake

display

be

carried

is

stationary.

TEST

Item

Solenoid
wheeland

Solenoid

and motor
Solenoid

wheeland

valve

valve

valve

data

will

be unreliable.

out.

lf

the vehicle

SPECIFICATIONS

for front-right

motor

for front-left

for

rear-right

motor

wheel

OFF

speed

Solenoid
pump

hydraulic
inspection

during

valves

motors

unit

actuator

in

the

(simple

mode)

and

o4

Solenoid
and motor

valve

for rear-left

wheel

35-20

SERVICE

BRAKES

-

Service

Adiustment

Procedures

Main

wiring

harness

M8991638

i4co13o

SERVICE

ABS

WHEEL

2. Disconnect

3.

OPERATION

SPEED

Lift up

1.
specialtool

iotate
rotation

circuit

Wheel
speed
sensor

Terminal

No.

Output

When

ADJUSTMENT

SENSOR

vehicle

the

the ECU

to measure

wheel

the

per

second,

tester

or an

Front

19

20

voltage

measuring

70 mV or

When

lf the output

4.

reason

o

Faulty

replace

So

measuring

mV

100

could

wheel

the

CHECK

OUTPUT

release

and

harness

from

to be

P-P

voltage

be as

speed

wheel sPeed

measured

check

and

oscilloscope.

left

Front
right

14
15

with a

more

with an

more

or

is lower

follow:

sensor.

PROCEDURES

VOLTAGE

parking

the

connector

harness

the

at

the output

Rear

16
17

circuit

tester:

oscilloscope:

the

than

sensor.

CHECK

brake.

and

connector'

side

approximately

voltage using

left

above

Rear

18

46

values,

use

112-1

right

the

a

the

Inspecting

the

Use

from each

form
o

Start
1st

Wave

following

the engine,

gear
(vehicles
wheels

manually

NOTE

1.

Check
connector

wave

The

2.
vehicle

the
The output

3.
low, and
high.

Forms
method

wheel sensor

With An Oscilloscope

to observe

with an

and

rotate

the

(vehicles with manual

with automatic

that they

so

the connection

before

form

using

measurements

is

actually

voltage will be

similarly

it will be

transmission).

rotate

the

of

oscilloscope.

the

moving.

small

large

the output

voltage

wave

oscilloscope .

wheels by

front
transmission)

constant

at a

sensor

also

can
when the

when the

engaging

range

D

or

Turn the

speed.

harness

be taken

wheel

wheel

speed
speed

rear

and

while

is
is

sERVlcE

BRAKES

-

service

Adjustment

procedure/Hydrautic

Unir

3S-21

$)iu""JrJy

VALVE
<ABS>

Remove

Battery

Continuity
Continuity

voltage

RELAY

the

splash

no voltage

with

voltage

AND

shield

Terminal

MOTOR

(FR)

and remove

No.

1

G-

0-

--{

--€

RELAY

the relavs.

3

CHECK

4

c-

--{

5

/lrel

,EL- I

€jFJ-Fffir

lf.X.Xetl

HYDRAULIC

UNIT

INSPECTION
SOLENOID
Measure
Standard

Solenoid

Front
Front
Rear

lN

Rear

lN

Front

OUT

Front

OUT

Rear

OUT

Rear

OUT

MOTOR

connect
the

hydraulic

VALVE

the

resistance

value:

valve

(right

lN
lN

(left

side)

(right

(left

side)
(right
(left

(right
(left

side)

side)

side)

side)

side)

side)

OPERATION

the

battery

unit

motor

CHECK

and

Caution
The

battery

power

should

second.

between

Measurement
terminals

-

1

11

11 11

-- | |
3-11

2-11
5-11
8-11
7-11

6-11

CHECK

check

to

operating

not

be applied

terminals.

Resistance

terminals.

8.04

4.O4

be

sure

can

be heard.

-

9.04

-

4.54

that

for

between

O

A

the

sound

more

than

of

1

35-22

SERVICE

BRAKES

-

Hydraulic

UniUG-Sensor

INSTALLATION

BRAKE

1.
Connect

illustration.
(1)

From

(2)

From

(3)

From

(4)

From

(5)

From

and

(6)

From
and

SERVICE

PIPE

the

hydraulic
hydraulic
hydraulic
hydraulic

master

rear

master

rear

POINT

INSTALLATION

tube

R.H.
L.H.

to the

unit
unit
unit
unit

cylinder

line)

cylinder

line)

hydraulic

front brake

to

rear brake

to

rear brake

to

front brake

to

to hydraulic
to

unit as

(L.H.)
(R.H.)
(L.H.)

(R.H.)

hydraulic

unit

shown

(front L.H.

unit

(front

in the

R.H.

line
line

MB991

348

G-SENSOR

INSPECTION

1. Disconnect

special
connector.
Turn the

2.
following

Between
Standard

With the

that

so
take a

Between
Standard

voltage

lf the

4.
sure

to be

earth

and

the G-sensor

tool between

ignition
outPut
terminals

value:

special

label

the

reading

of

terminals

value: 3.4

is outside

that

wires,

switch

voltage.

No.2 and

-

2.4

tool still

surface

following

the

No.2 and

-

is

there

replace

connector

terminals

the

take

to ON

2.6

connected,

is facing

3.6
the standard

no abnormality

the G-sensor.

and

No.3.

V

straight

output

No.3.

V

connect

and

the disconnected

of

reading

a

secure

voltage'

value, after

the G-sensor

down,

power

in the

of

and

checking

supply

the

the

then

528-1

SUPPLEMENTAL

RESTRAINT

0

SYSTEM

CONTENTS

TROUBLESHOOTING

AIR

(SRS)

Standard

Inspection
Inspection

Diagnosis
lnspection

lnspection

MODULE

BAG

Diagnostic

of

Flow

for

Chart
procedure

.........

Code

for

Chart

Procedure

AND

Troubleshooting

Diagnostic

Classified

Trouble Symptoms

for Trouble

Codes

CLOCK

.......".......'..'

by

.".-...'.'.'."

Symptoms'."'.'.

SPRING

.."...4

4

'.......

....'... 5

12
12

14

......

5

o

52B'-2

SRS

-

SRS

Service

Precautions

SRS

SERVICE

1. In order
accidental

from

servicing,

precautions
manual.

not use

2.

during
the
this

Do

near SRS

P.52B-4.

on

3.

Never

Attempt

Components:

.

SRS

o

Clock

.

Air

Bag

(Driver's

SRS-ECU

PRECAUTIONS

to avoid

any electrical

components,

air bag

Spring

Module

injury

deployment

read and

procedures

and

Repair

to

control

front

or

side

connector

yourself

to

of the

carefully

described

equipment

test

except

unit

those

Following

the

(SRS-ECU)

passenger's

others

or

air bag

follow

all

in

or

on

specified

side)

Do not attempt

4.
the SRS.

replace
faulty,
the

lf

any

wiring

the

replace

following

table.

repair

to

the connectors

of

repair the

or

the wiring

harness.

harness

are diagnosed

wires are

lf the

wiring

harness

connectors

faulty,

as

diagnosed

according

as

of

to

SRS

-

SRS

Service

precautions

528-3

16

to

19

21

pins,

yellow

Body

wiring

module

Body
passenger's

Body

Body

Body

Body

Body

(Drive/s

wiring

wiring

wiring
wiring

harness

wiring

wiring

harness---

harness

harness

harness

harness

harness

side)

-

side)

-

--.+

---r

-

.-+

Clock

spring

Air

bag

Diagnosis

Junction
Junction

SRS

Earth

block

block

warning

-

module

(Front

connector

(fuse
(fuse

lamp

Air

bag

No.1
No.1g)

1

)

Correct
wiring

Corrective

Correct
wiring
clock

Correct

wrnng

Correct
wiring

Correct

wiring

or

harness.

spring.

or

narness.

or replace

harness.

or replace

harness.

or

harness.

action

replace

Replace

replace

replace

each

each

each

each

body

Insulating

6.

SRS

and

7.

whenever
functions

8.

Make

you

9.

lf

NOTE
SERIOUS

THE

tape

components

clock

sprino

you

should

b*1"

-finish
servicirig

properly.
certain
have

PROCEDURES

that

the

questions

any

INJURY

CAN

ignition

AND

Battery

not

be

subjected

gryjp

about
RESULT

oa!1s

ql

tne

snb,

switch

the

is

SRS,

FROM

EQUIPMENT

5.

After
seconds
fottowing

enough
even
serious
deptoyment
immediatery
nected.

to

hear

over

the

vehicre

check

oFF

pr""r"

warning

when

the

.oitaciyour

UNINTENDED

SPECIFIED

disconnecting

or

m_ore^before

work.

vottage

after

injury_may

93.C,

The.sRS
to

the

battery

if

work

after

so

deptoy

result

the

remove

aflei[aintins

iamp

operation

MUT-II

IN

is

AIR

THIS

connected

tocal

distributor.

BAG

MANUAL.

the

battery

cable,

proc;eding

systdm

ihe

has

is

done

battery

the

to

or

DEPLOYMENT,

is

oeiiln-eo

air

bag

foi

been

from

aisconneci"-ol'"o

unintended

on

the

SRC

cabres

SRS-ECU,

make

sure

air

that

disconnected.

SO

wait

-tne

*ltn

io'i"t"in

JJrrortiirn"

"ii'O"g

"V"i",

oi""on-

"r"

bag

module

the

system

USE

ONLY

60

52B'-4

SRS

-

Special

Tool/Test

EquipmenUTroubleshooting

SPECIAL

Tool

TEST

Tool

TOOL

Number
M8991613

EQUIPMENT

TROUBLESHOOTING

Name

check

SRS

harness

Name

Digital

multi-meter

Use

Checking

Use

Checking

a

Use
maximum

minimum

the
measurement

SRS

test

range

electrical

electrical

current

the SRS

the

multi-meter

circuitry

circuitry

which

for

is
resistance

of

the

2 mA

or

less at

STANDARD

Gathering

information

FLOW

Check

OF

from customer

diagnosis

co

i'*qrr**,'.*.il-

trouble

Inspection
syniptoms

(Refer

chart

for

P.52B-12.)

to

Verify

I

t

I

J

TROUBLESHOOTING

complaint

*"o".r,..

Diagnosis

displayed

diagnosis

trouble

P.528-5.)

to

P.528-5.)

to

DIAGNOSTIC

- I

d"

--T-

Recheck

1n

-=t-

Check
(Refer

irn"-@'l

(nefer

|

codes

code

code(s)

{

Diagnosis
displayed

then

erase

code

res

nol

agnosis

Diagnosis

No
cooe

|

reoccur

code

lntermittent

osrs

mallunction

SRS

-

Troubleshooting

528-5

INSPECTION

Inspect

21,22,61,62
24,25,64,

according

65

CHART

to

Analog
Safing
Driver's
Front

SRS-ECU
Connector
SRS-ECU
lG,
lG,

SRS
sysrem

SRS

FOR

the inspection

G-sensor

G-sensor

side

passenger's

(A) power

(B) power

warning

warning

DIAGNOSIS

chart

system

system

air

bag

side

capacitor

lock

system

(deployed

circuit
circuit

lamp

lamp

drive

modute

air bag

svsrem

air bag)
system
system

drive

circuit

circuit

that

is

appropriate

in

the

SRS-ECU

in

the

SRS-ECU

(squib)

module (squib)

system

system

CODES

system

Lamp
Lamp

for

the

system

does
does

malfunction

not

illuminate.

not

switch

off.

code.

sRS-ECu

Driver's
Front

NOTE

,t,.'lff;J;,1ffii:t;:?n

(2)

ff

the

vehicle

displayed,

INSPECTION

Gode

It outputs
r
.
.

Replace

Ine

sH5-EL;U

When
When

When

No.14

this

the

analog

the

characteristics

the

output

the

SRS-ECU.

has,

check

the

PROCEDURE

Analog

monitors

code when

the

any

G-sens6r

from

the

non-volatite

side

passenger's

returns

a

discharged
batterv.

G-sensor

output

of

the

of the followinq

is not

operatiio

of

the

analog

analog

G-s6nsor

memory

air

bag

modure (squib

side

air

bag

to

normal,

battery

the

it

will

CLASSIFIED

system

analog

ari

G_sensor

is

in

G-sensor

Celecteo.

are abnormal

abnormal

the

inside

(EEpRoM)

ignition

modure

diasnosis

store

(squib

code

the

fault

BY

DIAGNOSIS

SRS-EC-

the

sRS-Ecu.

and

drive

ignition

wifl

codes

A/D

converter

circuit)

system

drive

circuit)

be

automaricaly

41

or 42.

CODE

Probable

.

Malfunction

svstem

svstem

erased,

when

cause

of

SRS-ECU

these

and

the

sRS

diagnosis

warning

cooes

are

528-6

SRS

-

Troubleshooting

cocle No-l5 Safino G-sensor

open

This code

safinq
in" tiornte

Code

is output

G-sensor

ciuses

No.

inside

15
16

SRS-ECU.

Replace

lhe

CoO"

No.21

{errrrih\ svstem

diaqnosis

These
terminals

irJrorc

in"

Code

5f the

No.

drivefs

iiuses

21

22

61

62

is a short

if there

SRS-ECU.

the

for each

,22,61

are

codes

side

tor each

or

diagnosis

Trouble

Short

Driver's

or 62

if there

output

module

bag

air
diagnosis

Trouble
o

short

r

Short

a

Ooen

a

Open

a

Malfunction

o

Short

o

Short

code

circuit

code

svstem

circuit

No are

in

between

as

symPtom

in the

side

is abnormal

(squlb)'

are as

No

symPtom

driver's

in

sPring

clock

in

in driver's

crrcurt

in clock

circuit

of connector
in driver's
in driver's

the SRS'ECU

terminals

the

follows'

G-sensor

safing

module

bag

air

resistance

follows'

side

side

side

between

bag

air

side

sPring

contact

air bag

bag

air

of the

Inpul

the

module

bag

air

module

module

Probable

.

Malfunction

Probable

a

Malfunction

a

Malfunction

a

Malfunction

a

Malfunction

(squib) or

module

(squib)

(squib) harness

harness

(squib)

harness

cause

of SRS-ECU

cause

clock

of

wiring

of
of drivei's

of SRS-ECU

short

open

or

leading
leading

sPring

harnesses

air

side

harness

the

to

the earth

to

conneclors

or

module

bag

power

(squib)

supply

check

SRS

(M8991613)

Reolace

the

harness

driver's

side

air

bag

MUT-ll
o

o
.

module.

Self-diag
Disconneci
connector
Connect
connector

Erase
memory.
Are code
outout?

C-92.

SRS

(1).

diagnosis

No.21

code

clock

check

22,61

,

sPring

harness

code

or 62

Check
connectors:
C-92

Check
between

and

the

D-51

and

the

the SRS-ECU

spring.

clock

following

harness

wlre

528-8

SRS

-

Troubleshooting

Code

This diagnosis code
the air bag

Reolace the SRS-ECU.

Code

This diagnosis code
earth

automatically

No.35 SRS-ECU

has deployed,

No.41

is fower than

However,

SRS check

if the vehicle condition

erased, and

harness

is output after

lG1

is output

the

(M8991613)

(deployed

the air bag deploys.

the cause

(A)

specified

the

is

power

if the voltage between

value for a continuous

returns to

warning

SRS

Measure at SRS check
connector
.

Disconnect
connector

r

Connect SRS
connector

r

Continuitv between
(20)

OK:

air bag) system

probably

lf this code

a malfunclion

circuit system

the lGi

D-51.

check

(3).

period

switch

harness

SRS-ECU

harness

terminals

normal, diagnosis code

lamp will

(5).

and

i21)

Continuity

is

output beto_re

inside the SRS-ECU.

(A)terminal

of 5 seconds or

No.41 will be

off.

and

the

more.

Probable cause

.

Malfunction

Probable cause

o

Malfunction

.

Malfunction of SRS-ECU

Check
connectors:

C74,C78

Check the harness
repair il necessary.

the following

and D51

of

SRS-ECL

of wiring harnesses or connectors

wire

between

lhe SRS-ECU and earth, and

Measure at SRS

.

Disconnect

o

Connect

.

Connect

o

lonition switch:

o

Vbltage between

OK:

SRS-ECU
SRS
negative battery cable

9Vormore

check harness connector

connector

harness connector

check

ON

terminal

(14)

D-51.

and body

(5).

(3).

earth

Check the
connectors:
C-74 and

Check the
switch lG1, and

D-51

harness wire between the SRS-ECU and

following

iqnition

repair if necessary.

SRS

-

Troubleshooting

528-9

Code No.42

Qqagnosis.,code

]frl;

eann rs

tower

However,

automatically

SRS

(M89e1613)

Measure
.

Disconnect

.

Connect

.

Connect

.

lgnition

.

Y91taS9
OK:

tnan

rt

the vehicle

erased,

check

harness

at SRS

SRS-ECU
SRS
negative

switch:

between

9Vormore

(B) power

lG1

is outpu.t

the

specified

condilio_n

and

check

harness

connector

check

harness

battery

ON

terminal (13)

if

the voltage

value

returns

the

SRS warning

Measure
connector (5).
o

o
.

connector

D-51 .

connector

cable

and

circuit

for

Disconnect
connector
Connect
connector (3).
Continuity
(20)
OK:

body

system

between

a continuous

lo normal,

lamp

will

at

SRS

D-51.

SRS

between

(21)

and

Continuity

(5).

' '
(3).

earth

the lG1 (B)

period

diajnosis

switch

check

SRS-ECU

check harness

terminal

of

code

off.

harness

terminals

and the

5 seconds

No.42

will

or

more.

be

Check
connectors:
C-74,

Check
repair

Check_
connectors:
C-79

Probable

.

Malfunction

the

following

C-78 and

the harness

if necessary.

the

following

and D-51

D-51

cause

of wiring

wire

between

harnesses

the

SRS-ECU

or connectors

and

earlh,

and

o

Check

switch

the

harness

lG1,

and repair

wire

between

if

necessary.

the

SRS-ECU

and ignition

0,

52B-10

SRS

-

Troubleshooting

Code

No.43

(Lamp does

this

lamp

SRS

at

SRS

switch:

negative
terminal

LamP

code

OFF).

code!

diagnosis

will

harness

SRS-ECU

illuminates

This diaonosis

i';il;il;hitil[e

(transistor

OFF
ii,*duJi,iilhis
iJrioimli,
warning

check

SRS
(MB991613)

Measure

.

Disconnect

o

Connect

.

lonition

o

Connect

.

Connect
OK:

SRS

not

is output
SnsEcu

is output

return

check

check

ON

battery

(15)

warning

illu

when

monitoring

in

to

due
f.rf o.+S

coOJ

normal.

to

Measure
connector

.
o
o

harness

connector

connector

connector

harness

cable

body

the

to

drive

lamp

circuit

open

an

rhe

circuit,

open

an

automatically

will b'e

SRS

at

(5).

Disconnect
connector
Connecl
connector
Continuity

(20)

OK:

D-51.

eann.

D-51.

SRS

(3).

between

(21)

and

Continuity

(5)'

(3)'

,

o_ccurs

sBS

check

check

circuit

for a

ramp

warning

vehicle

the

if

erased,

harness

SRS-ECU

harness

terminals

system

continuous

the

and

condition

the SRS

and

period ol

lamp

returns

Check
connectors:
C-74,C-78

Check
repair

Check
connectors:
c-13,
and

Probable

.
o

is

.
o

the

the

if necessary.

c-68,

D-05

Malfunction

bulb

Blown
Malfunction
Malfunction

following

D-51

and

harness

lollowing

the

C-78,

cause

wiring

oi
of SRS-ECL

of combination

between

wire

D-04

harnesses

meter

SRS-ECU

the

or connectors

earth,

and

rd

and

,lti

ReDlace

the

SRS-ECU

the

Check
between

ignition

and

Replace
meter.

harness

the SRS-ECU

switch

the

wire

(lGr).

combination

q

SRS

-

Troubleshooting

528-11

|&

o

Code

llgtp

This
the.lamp
and the

SRS warning
.
o

Fleplace

|!igo1991osi9.9odeisoutputWhenaShortoccursintffi

mafuncrron

ECU

No.43

does

diagnosis

lgnition
Does
drsconnected?

is

code is

and the-SFS-ECU

lamo

is

ON.

lamp

switch:

lamp

switch

the

SRS-ECU.

ot the

monitoring

SRS warning

not

switch

output

inspection

ON

off

output

transistor

the

SRS warning

when

white

when

off.)

a short

SRS-ECU

SRS-ECU

inside

lamp

lamp

to

is

the

sRS-Ecu

drive

drive

circuit

earth occurs

monitoring

connector

ciicLrrt.

is

system

in

the

harness

tn"

SRS;a-r,;!l;;;"

D-51

is

cuit

system

ddtected

while

between

the

--

|tn;t.;ti;-erszE-iT.j''..,|q|l|Pu||vcu||Uu|t5y>tEl||.ru

Check
connectors:
C-l3,

D-05

Check
between
and

combination

and repair

sRS_

Probable

.

Malfunction

.

Malfunction

o

Malfunction

the

lotlowing

and D51

the

harness

the

SRS-ECU

meter,

if necessary.

Probable

.

Maltunction

o

Malfunction

cause

of wiring
of

SRS:ECU

of

combination

wire

cause

of

wiring

of

SRS-ECU

harnesses

meter

harnesses

or conneclors

or

connectors

o

Code
and

Tfris
memory (EEPROM)

Replace

i

tl

Gode
ignition

I nrs

in

Replace

Code
(squib

This

in

Replace

No.45.

A/D

converter

diagno_sis_code

the

SRS-ECU.

No.51

drive

oragnosrs

the

circuit

for

the

SRS-ECU.

code is

the

No.54

ignition

diagnosis

the

circuit

for

the

SRS-ECU.

code

the

SRS-ECU

system

is output
and

or

circuit)

driver'3

or

is output

passenoer's

if

there

A,/D

converter.

52 Driver's

system

output

if

a

sear.

55 Front

drive

circuit)

if a

non-votatite

is

a malfunction

side

air

(No.51)

short

or

passenger's

syslem

(No.sa)

short

seat.

or

memory (EEPROM)

in the

bag

an open

side

an

open

sRS-ECU

module

circuit

air

circuit (No.55)

non-volatile

(squib

(No.52)

bag

module

is

detected

is

detected

Probable

o

Malfunction

Probable

.

Malfunction

Probable

.

Malfunction

cause

of

SRS-ECL

cause

of

SRS-ECU

cause

of

SRS-ECL

3

528-12

SRS

-

Troubleshooting

INSPECTION

Get an understanding

Trouble

Communication with
MUT-Il is

When the ignition
SRS warning lamp

After the ignition
is

still on

symptom

not

after approximately 7 seconds have

INSPECTION

Inspection

CHART FOR TROUBLE

of the trouble symptoms

Communication with

oossible.

key is turned to

switch is turned to

not

oossible.

Communication is not

SRS only.

"ON"

not

does

illuminate.

ON, the SRS warning lamp

PROCEDURE FOR

procedure

1

Communication with MUT-II is not
(Gommunication

The cause is
diagnosis

probably a power

line.

with all systems is

system

(including

supply

SYMPTOMS

and check according

allsvstems is

possible

(engine

stopped),

passed.

TROUBLE

possible.

possible.)

not

earth

circuit)

Inspection

I

I

with

the

2

Refer to

No.43.
Refer

No.43.

SYMPTOMS

Probable cause

of

the

a
a

to the

to diagnosis

Malf
Malfunction

inspection

procedure

diagnosis code

of

unction

connectors

of wiring harness

No.

code

procedure

char1.

Reference
528-12

52B-12

528-10

528-11

page

t|rd,)'

Refer to

Inspection

GROUP 35 - Troubleshootino

Procedure

Communication with
(Communication

lf communication is
circuit in the
earth circuit).

diagnosis output

possible

not

is not

2

MUT-II is not

possible

with

the SRS only, the

circuit of the SRS or in the

possible.

with

SRS only.)

cause

power

probably

is

circuit

an open

(including

Probable

a

Malfunction of wiring

a

Malfunction

cause

of SRS-ECU

harnesses or connectors

,&/1

I

SRS

check harness

(M8991613)

Measure
connector

o
.
o

at

Disconnect
connector
Connect
connector
Continuity
(20)

and

OK:

Continuitv

SRS

(5).

D-51.

SRS

(3).

between

(21)

-

SRS

check harness

SRS-ECU

check harness

terminals

Troubleshooting

Check.
connectors:
C-74.

Check

repair

the

C-78

and

the

harness

is

necessary.

f ollowing

D-51

wire

between

the

SRS-ECU

528-13

and

earth,

and

Measure
.

Disconnect

.

Connect

.

Connect

.

lgnition

.

Y-olt"Sg
OK:

.

Yg.ltaSg
OK:

Check the
connector.

at

SRS

check

SRS-ECU

SRS

check harness

negative

switch:

ON

between

9Vormore

between

9Vormore

harness

harness

connector

battery

cable
terminal (13)
terminat (14)

wire

between

connector

D-51.

connector

and

body

and body

the

SRS-ECU

(S).

' '

(3).

earth

earth

and diagnosis

Check
connectors:
C-74,

Check
switch lct,

the

C-79

the

followino

and

D-51

harness

and repair

wire

between

if

necessary.

the

SRS-ECU

and ignition

528-14

SRS - Air Bag

Module

and

Clock

Spring

AIR

BAG

SPRING

CLOCK

INSPECTION
lf,

as result

discovered,

1.

Check
terminals

2. Visually

3. Check
connectors

Connector No.
Terminal

Continuity
between
terminals

SPRING

of following

replace

connectors

for

check the

that there

No. I

MODULE

the

and

deformation.

case for

is

No.1,

No.2,

1

2

AND

checks,

clock

spring with

protective

continuity

No.3

3

G

G
G

CLOCK

even one

damage

between

and No.4.

2 .t

J

4

_C

G

abnormal

new

a

tube for

the

I 2

-c

C

point

one.

damage,

clock

spring

4

1

2

_C

_C

is

and

Resistance

SRS

check

harness

View A

(3

,""*0k)

'".@

Q)

Painted

+

mark

4.

5.

When
clock

spring

the

arrow
Check
of

SRS

joining

connector No.6

portion

for

continuity

Check

SRS

Check

of the No.6.

between

harness

connector No.3.

harness

align

terminal 25

connector No.2

paint

of the No.2

and terminal

and

with

26

No. PWUE9I

Pub.
ENGTISH
EUROPE

l9-F

A mrsuBrsHr

MoToRs coRPoRATroN

July'96

Printed

in

{)

Japan