Subaru 2001 Forester Manuale utente

This service manual has been prepared

to provide SUBARU service personnel

with the necessary information and data

for the correct maintenance and repair of

SUBARU vehicles.

This manual includes the procedures for

maintenance, disassembling, reassem-

bling, inspection and adjustment of com-

ponents and diagnostics for guidance of

experienced mechanics.

Please peruse and utilize this manual

fully to ensure complete repair work for

satisfying our customers by keeping their

vehicle in optimum condition. When

replacement of parts during repair work is

needed, be sure to use SUBARU genu-

ine parts.

All information, illustration and specifica-

tions contained in this manual are based

on the latest product information avail-

able at the time of publication approval.

FUJI HEAVY INDUSTRIES LTD.

2001 FORESTER SERVICE MANUAL QUICK REFERENCE INDEX

CHASSIS SECTION

G8050GE5

ABS (DIAGNOSTICS) ABS

Page

1. Basic Diagnostic Procedure........................................................................2

2. Check List for Interview...............................................................................6

3. General Description.....................................................................................9

4. Electrical Components Location................................................................12

5. Control Module I/O Signal.........................................................................14

6. Subaru Select Monitor...............................................................................18

7. Read Diagnostic Trouble Code.................................................................20

8. Inspection Mode........................................................................................21

9. Clear Memory Mode..................................................................................22

10. ABS Warning Light Illumination Pattern....................................................23

11. List of Diagnostics Trouble Code..............................................................24

12. Diagnostics Chart with Diagnosis Connector............................................28

13. Diagnostics Chart with Subaru Select Monitor.........................................90

14. General Diagnostics Table......................................................................174

1. Basic Diagnostic Procedure S006501

A: PROCEDURE S006501E45

1. WITHOUT SUBARU SELECT MONITOR S006501E4501

CAUTION:

Remove foreign matter (dust, water, etc.) from the ABSCM&H/U connector during removal and

installation.

NOTE:

쐌To check harness for broken wires or short circuits, shake it while holding it or the connector.

쐌When ABS warning light illuminates, read and record trouble code indicated by ABS warning light.

No. Step Check Yes No

1 CHECK PRE-INSPECTION.

1) Ask the customer when and how the

trouble occurred using interview checklist.

<Ref. to ABS-6, Check List for Interview.>

2) Before performing diagnosis, inspect unit

which might influence the ABS problem. <Ref.

to ABS-9, INSPECTION, General Descrip-

tion.>

Is unit that might influence

the ABS problem normal? Go to step 2. Repair or replace

each unit.

2 CHECK INDICATION OF TROUBLE CODE.

Calling up trouble code. <Ref. to ABS-20,

Read Diagnostic Trouble Code.>

Is trouble code readable? Go to step 3. Inspect using

diagnostic chart

for ABS warning

light failure.<Ref.

to ABS-28, Diag-

nostics Chart with

Diagnosis Con-

nector.>

NOTE:

Call up trouble

code again after

inspecting ABS

warning light.

<Ref. to ABS-20,

Read Diagnostic

Trouble Code.>

3 CHECK TROUBLE CODE.

NOTE:

Record all trouble codes.

Is only the start code

issued? Go to step 4. Go to step 5.

4 PERFORM THE GENERAL DIAGNOSTICS.

1) Inspect using “General Diagnostics Table”.

<Ref. to ABS-174, General Diagnostics

Table.>

2) Perform the clear memory mode. <Ref. to

ABS-22, WITHOUT SUBARU SELECT

MONITOR, OPERATION, Clear Memory

Mode.>

3) Perform the inspection mode. <Ref. to

ABS-21, Inspection Mode.>

Calling up the trouble code. <Ref. to ABS-20,

Read Diagnostic Trouble Code.>

Is only the start code

issued? Complete the

diagnosis. Go to step 5.

ABS-2

BASIC DIAGNOSTIC PROCEDURE

ABS (DIAGNOSTICS)

No. Step Check Yes No

5 PERFORM THE DIAGNOSIS.

1) Inspect using “Diagnostics Chart with Diag-

nostic Connector”.<Ref. to ABS-28, Diagnos-

tics Chart with Diagnosis Connector.>

NOTE:

For trouble code list, refer to “List of Diagnos-

tics Trouble Code”.<Ref. to ABS-24, WITH-

OUT SUBARU SELECT MONITOR, LIST, List

of Diagnostics Trouble Code.>

2) Repair trouble cause.

3) Perform the clear memory mode. <Ref. to

ABS-22, WITHOUT SUBARU SELECT

MONITOR, OPERATION, Clear Memory

Mode.>

4) Perform the inspection mode. <Ref. to

ABS-21, Inspection Mode.>

5) Calling up the trouble code. <Ref. to ABS-

20, Read Diagnostic Trouble Code.>

Is only the start code

issued? Complete the

diagnosis. Inspect using

“Diagnostics Chart

with Diagnostic

Connector”. <Ref.

to ABS-28, Diag-

nostics Chart with

Diagnosis Con-

nector.>

ABS-3

BASIC DIAGNOSTIC PROCEDURE ABS (DIAGNOSTICS)

2. WITH SUBARU SELECT MONITOR S006501E4502

CAUTION:

Remove foreign matter (dust, water, etc.) from the ABSCM&H/U connector during removal and

installation.

NOTE:

쐌To check harness for broken wires or short circuits, shake it while holding it or the connector.

쐌Check list for interview. <Ref. to ABS-26, WITH SUBARU SELECT MONITOR, LIST, List of Diagnostics

Trouble Code.>

No. Step Check Yes No

1 CHECK PRE-INSPECTION.

1) Ask the customer when and how the

trouble occurred using interview checklist.

<Ref. to ABS-6, Check List for Interview.>

2) Before performing diagnosis, inspect unit

which might influence the ABS problem. <Ref.

to ABS-9, INSPECTION, General Descrip-

tion.>

Is unit that might influence

the ABS problem normal? Go to step 2. Repair or replace

each unit.

2 CHECK INDICATION OF TROUBLE CODE

DISPLAY.

1) Turn ignition switch to OFF.

2) Connect the SUBARU SELECT MONITOR

to data link connector.

3) Turn ignition switch to ON and SUBARU

SELECT MONITOR to ON.

NOTE:

If the communication function of the select

monitor cannot be executed normally, check

the communication circuit. <Ref. to ABS-90,

COMMUNICATION FOR INITIALIZING

IMPOSSIBLE , Diagnostics Chart with Subaru

Select Monitor.>

4) Read diagnostic trouble code. <Ref. to

ABS-18, OPERATION, Subaru Select Moni-

tor.>

5) Record all trouble codes and frame data.

Is the corresponding

trouble encoding? Go to step 3. Go to step 4.

3 PERFORM THE GENERAL DIAGNOSTICS.

1) Inspect using “General Diagnostics Table”.

<Ref. to ABS-174, General Diagnostics

Table.>

2) Perform the clear memory mode. <Ref. to

ABS-19, CLEAR MEMORY MODE,

OPERATION, Subaru Select Monitor.>

3) Perform the inspection mode. <Ref. to

ABS-21, Inspection Mode.>

4) Calling up the trouble code. <Ref. to ABS-

18, READ DIAGNOSTIC TROUBLE CODE,

OPERATION, Subaru Select Monitor.>

Is no trouble code desig-

nated and ABS warning

light goes out after turning

on?

Complete the

diagnosis. Go to step 4.

ABS-4

BASIC DIAGNOSTIC PROCEDURE

ABS (DIAGNOSTICS)

No. Step Check Yes No

4 PERFORM THE DIAGNOSIS.

1) Inspect using “Diagnostics Chart with

Subaru Select Monitor”.<Ref. to ABS-90,

Diagnostics Chart with Subaru Select Moni-

tor.>

NOTE:

For trouble code list, refer to “List of Diagnos-

tics Trouble Code”.<Ref. to ABS-24, WITH-

OUT SUBARU SELECT MONITOR, LIST, List

of Diagnostics Trouble Code.>

2) Repair trouble cause.

3) Perform the clear memory mode. <Ref. to

ABS-19, CLEAR MEMORY MODE,

OPERATION, Subaru Select Monitor.>

4) Perform the inspection mode. <Ref. to

ABS-21, Inspection Mode.>

5) Calling up the trouble code. <Ref. to ABS-

18, READ DIAGNOSTIC TROUBLE CODE,

OPERATION, Subaru Select Monitor.>

Is no trouble code desig-

nated and does ABS warn-

ing light go out after turning

on?

Complete the

diagnosis. Inspect using

“Diagnostics Chart

with Subaru

Select Monitor”.

<Ref. to ABS-90,

Diagnostics Chart

with Subaru

Select Monitor.>

ABS-5

BASIC DIAGNOSTIC PROCEDURE ABS (DIAGNOSTICS)

2. Check List for Interview S006502

A: CHECK S006502A04

Check the following items about the vehicle’s state.

1. STATE OF ABS WARNING LIGHT S006502A0401

ABS warning light

comes on. 쏔Always

쏔Sometimes

쏔Only once

쏔Does not come on

쐌When / how long does it come on?:

Ignition key position 쏔LOCK

쏔ACC

쏔ON (before starting engine)

쏔START

쏔On after starting (Engine is running)

쏔On after starting (Engine is stop)

Timing 쏔Immediately after ignition is ON.

쏔Immediately after ignition starts.

쏔When advancing km/h to km/h

MPH to MPH

쏔While traveling at a constant speed km/h MPH

쏔When decelerating km/h to km/h

MPH to MPH

쏔When turning to right Steering angle : deg

Steering time : sec

쏔When turning to left Steering angle : deg

Steering time : sec

쏔When moving other electrical parts

쐌Parts name :

쐌Operating condition :

ABS-6

CHECK LIST FOR INTERVIEW

ABS (DIAGNOSTICS)

2. SYMPTOMS S006502A0402

ABS operating con-

dition 쏔Performs no work.

쏔Operates only when abruptly applying brakes. Vehicle speed : km/h

MPH

쐌How to step on brake pedal :

a) Operating time : sec

b) Operating noise : 쏔Produce / 쏔Does not produce

쐌What kind of noise? 쏔Knock

쏔Gong gong

쏔Bong

쏔Buzz

쏔Gong gong buzz

쏔Others :

c) Reaction force of brake pedal

쏔Stick

쏔Press down once with a clunk

쏔Press and released

쏔Others :

Behavior of vehicle a) Directional stability cannot be obtained or steering arm refuses to work when applying brakes :

쏔Yes / 쏔No

쐌When : 쏔Vehicle turns to right

쏔Vehicle turns to left

쏔Spins

쏔Others :

b) Directional stability cannot be obtained or steering arm refuses to work when accelerating :

쏔Yes / 쏔No

쐌When : 쏔Vehicle turns to right

쏔Vehicle turns to left

쏔Spins

쏔Others :

c) Brakes are out of order : 쏔Yes / 쏔No

쐌What : 쏔Braking distance is long

쏔Brakes lock or drag

쏔Pedal stroke is long

쏔Pedal sticks

쏔Others :

d) Poor acceleration : 쏔Yes / 쏔No

쐌What : 쏔Fails to accelerate

쏔Engine stalls

쏔Others :

e) Occurrence of vibration : 쏔Yes / 쏔No

쐌Where

쐌What kind :

f) Occurrence of abnormal noise : 쏔Yes / 쏔No

쐌Where

쐌What kind :

g) Occurrence of other phenomena : 쏔Yes / 쏔No

쐌What kind :

ABS-7

CHECK LIST FOR INTERVIEW ABS (DIAGNOSTICS)

3. CONDITIONS UNDER WHICH TROUBLE OCCURS S006502A0403

Environment a) Weather 쏔Fine

쏔Cloudy

쏔Rainy

쏔Snowy

쏔Various/Others :

b) Ambient temperature °F(°C)

c) Road 쏔Urban area

쏔Suburbs

쏔Highway

쏔General road

쏔Ascending slope

쏔Descending slope

쏔Paved road

쏔Gravel road

쏔Muddy road

쏔Sandy place

쏔Others :

d) Road surface 쏔Dry

쏔Wet

쏔New-fallen snow

쏔Compressed snow

쏔Frozen slope

쏔Others :

Condition a) Brakes Deceleration : g

쏔Continuous / 쏔Intermittent

b) Accelerator Acceleration : g

쏔Continuous / 쏔Intermittent

c) Vehicle speed km/h MPH

쏔Advancing

쏔Accelerating

쏔Reducing speed

쏔Low speed

쏔Turning

쏔Others :

d) Tire inflation pressure Front RH tire : kPa

Front LH tire : kPa

Rear RH tire : kPa

Rear LH tire : kPa

e) Degree of wear Front RH tire :

Front LH tire :

Rear RH tire :

Rear LH tire :

f) Genuine parts are used. : 쏔Yes / 쏔No

g) Chain is passed around tires. : 쏔Yes / 쏔No

h) T tire is used. : 쏔Yes / 쏔No

i) Condition of suspension alignment :

j) Loading state :

k) Repair parts are used. : 쏔Yes / 쏔No

쐌What :

l) Others :

ABS-8

CHECK LIST FOR INTERVIEW

ABS (DIAGNOSTICS)

3. General Description S006001

A: CAUTION S006001A03

1. SUPPLEMENTAL RESTRAINT SYSTEM

“AIRBAG”S006001A0301

Airbag system wiring harness is routed near the

ABS sensor, ABS control module and hydraulic

control unit.

CAUTION:

쐌All Airbag system wiring harness and con-

nectors are colored yellow. Do not use electri-

cal test equipment on these circuit.

쐌Be careful not to damage Airbag system wir-

ing harness when servicing the ABS sensor,

ABS control module and hydraulic control unit.

B: INSPECTION S006001A10

Before performing diagnostics, check the following

items which might affect ABS problems:

1. BATTERY S006001A1001

Measure battery voltage and specific gravity of

electrolyte.

Standard voltage: 12 V, or more

Specific gravity: Above 1.260

2. BRAKE FLUID S006001A1002

1) Check brake fluid level.

2) Check brake fluid leakage.

3. HYDRAULIC UNIT S006001A1006

Check the hydraulic unit.

쐌With brake tester <Ref. to ABS-9, CHECKING

THE HYDRAULIC UNIT ABS OPERATION WITH

BRAKE TESTER, INSPECTION, ABS Control

Module and Hydraulic Control Unit (ABSCM&H/

U).>

쐌Without brake tester <Ref. to ABS-8, CHECK-

ING THE HYDRAULIC UNIT ABS OPERATION

BY PRESSURE GAUGE, INSPECTION, ABS

Control Module and Hydraulic Control Unit

(ABSCM&H/U).>

4. BRAKE DRAG S006001A1003

Check brake drag.

5. BRAKE PAD AND ROTOR S006001A1004

Check brake pad and rotor.

쐌Front <Ref. to BR-21, INSPECTION, Front

Brake Pad.> and <Ref. to BR-22, INSPECTION,

Front Disc Rotor.>

쐌Rear <Ref. to BR-26, INSPECTION, Rear Brake

Pad.> and <Ref. to BR-28, INSPECTION, Rear

Disc Rotor.> or <Ref. to BR-33, INSPECTION,

Rear Drum Brake Shoe.> and <Ref. to BR-34,

INSPECTION, Rear Drum Brake Drum.>

6. TIRE S006001A1005

Check tire specifications, tire wear and air pres-

sure. <Ref. to WT-2, SPECIFICATIONS, General

Description.>

ABS-9

GENERAL DESCRIPTION ABS (DIAGNOSTICS)

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