torque ISUZU TROOPER 1995 Workshop Manual

5A3-40 REAR WHEEL ANTILOCK BRAKE SYSTEM
SPEED SENSOR REPLACEMENT
Removal steps
1. Harness connector
2.
Bolt and washer
3. Speed sensor
Installation steps To install, follow the removal
steps in the reverse order.
Fig. 5A3-11
NOTE:
The speed sensor is not serviceable. It should be
replaced when necessary.
E3 REMOVAL
1. Harness connector
2. Bolt and washer
3. Speed sensor
1••1 INSTALLATION
To install, follow the removal steps in the reverse
order, noting the
following points;
1. Tighten the bolt to the specified torque.
1~1 Bolt Torque N-m {lb·ft) I 24 {18)
NOTE:
See "Rear Axle" {Sec. 48) for exciter ring service.

REAR WHEEL ANTILOCK BRAKE SYSTEM 5A3-41
MAIN DATA AND SPECIFICATIONS
TORQUE SPECIFICATIONS N·m (lb·ft)
Fig. 5A3-12

4-WHEEL ANTILOCK BRAKE SYSTEM (ABS) 5A4-1
SECTION 5A4
'--' 4-WHEEL ANTILOCK BRAKE SYSTEM (ABS)
CAUTION
All
brake attaching fasteners are an important attaching part in that they could affect performance of
vital parts and systems, and/or could result in major repair expense. They must be replaced with one
of the same part number or with an equivalent part if replacement becomes necessary. Do not use
replacement parts
of lesser quality or substitute design. Torque values must be used as specified
during reassembly to assure proper retention of these parts.
CONTENTS
General Description .................... 5A4-3
System Components ................. 5A4-3
Electronic Brake
Control Module ·
(EBCM) .......................... 5A4-3
Hydraulic Unit ...................... 5A4-3
ABS Warning Light .................. 5A4-4
Wheel
Speed Sensor ................. 5A4-4
G-Sensor
........................... 5A4-4
Normal and Antilock Braking .......... 5A4-4
Brake Pedal Travel
................... 5A4-4
Abbreviation ........................ 5A4-4
Diagnosis
............................. 5A4-5
General
Information ................. 5A4-5
ABS
System Service Precautions ....... 5A4-5
Computer System Service
Precautions
....................... 5A4-5
General Service Precautions
........... 5A4-5
Note on lntermittents ................ 5A4-6
Test Driving ABS Complaint Vehicles ... 5A4-6
II ABS11 Warning Light ................ 5A4-6
Normal Operation ................... 5A4-6
Basic
Diagnostic Flow Chart ........... 5A4-7
Basic
Inspection Procedure ............ 5A4-8
TECH 1
TOOL. ......................... 5A4-10
1. What can be done with TECH 1 ...... 5A4-10
2. How to Use TECH 1 ................ 5A4-11
3. Explanation of Modes .............. 5A4-15
Mode FO: Data List ................... 5A4-16
Mode F2: Trouble Code ............... 5A4-18
Mode F3: Snapshot .................. 5A4-19
Mode F4: Clear Code ................. 5A4-20
Mode F5: Actuator Test ............... 5A4-21
Mode F6: Wheel Sensors ............. 5A4-31
Pin-Out Checks ........................ 5A4-33
Circuit Diagram ..................... 5A4-34
Part Location ....................... 5A4-37
Symptom Diagnosis .................... 5A4-38
CHART A-1 1) ABS Works Frequently
but Vehicle does not Decelerate ...... 5A4-39
CHART TA-1 1) ABS Works Frequently
but Vehicle does not Decelerate ...... 5A4-40
CHART A-2 2) Uneven Braking Occurs
while ABS Works .................. 5A4-41
CHART TA-2 2) Uneven Braking Occurs
while ABS Works .................. 5A4-42
CHART A-3, T A-3 3) The Wheels are
Locked
........................... 5A4-43
CHART A-4 4) Brake Pedal Feel is
Abnormal ........................ 5A4-44
CHART A-5 , T A-5 5) Braking Sound
(from Hydraulic Unit) is Heard while
not Braking ....................... 5A4-45
Diagnosis by 11 ABS11 Warning Light
Illumination Pattern .................. 5A4-46
Diagnostic Trouble Codes (DTCs) ....... 5A4-47
1. How to Display and Erase DTCs ... 5A4-47
2. Diagnostic Trouble Codes ........ 5A4-49
CHART B-1 With the Key in the ON
Position (before Starting the Engine),
Warning Light (W /L) is not
•
Actuated ........................ 5A4-50
CHART B-2 II ABSII Light Flashes
Twice with Key ON ................ 5A4-51
CHART B-3 EBCM Abnormality (Diagnostic
Trouble Code 14) .................. 5A4-52
CHART B-4 Power Voltage Drop (Diagnostic
Trouble Code 15) .................. 5A4-53
CHART B-5 G-Sensor Circuit (Diagnostic
Trouble Code 21) .................. 5A4-54
CHART B-6 Brake Switch Trouble
(Diagnostic Trouble Code 22) ........ 5A4-55
CHART B-7 Abnormal Transmission Input
(A/T Modei)(Diagnostic Trouble
Code 23) ......................... 5A4-56
CHART B-7 Abnormal Transmission Input
(M/T Modei)(Diagnostic Trouble
Code 23) ......................... 5A4-57
CHART B-8 Hydraulic Unit (HU) Pump
Motor and Motor Relay Circuit
(Diagnostic Trouble Code 32) ........ 5A4-58
CHART B-9 Solenoid Valve Abnormality
(Diagnostic Trouble Code 41, 42,
& 44) ............................ 5A4-59
CHART B-10 Valve Relay Abnormality
(Diagnostic Trouble Code 45) ........ 5A4-60

4-WHEEL ANTILOCK BRAKE SYSTEM (ABS) 5A4-73
ON-VEHICLE SERVICE
W CAUTION:
~ Replace all components included in repair kits used to service this system. Lubricate rubber parts with
clean, fresh brake fluid to ease assembly. Do not use shop air with in-line lubricators on brake parts,
as
damage to rubber components may result. If any hydraulic component is removed or brake line
disconnected,
it may be necessary to bleed part or all of the brake system.
NOTE:
The use of rubber hoses or parts other than those furnished specifically for the Anti lock Brake System may
lead to functional problems requiring major overhaul.
HYDRAULIC UNIT
5 (Located at the back
of the front fender) Removal
steps
1. Harness connector 2. Battery mounting bar 3. Brake pipes 4. Ground cable bolt 5. Bracket fixing bolt and nut 6. Bracket 7. Hydraulic unit fixing nuts 8. Hydraulic unit
Installation steps To install, follow the removal
steps in the reverse order.
1••1 REMOVAL
Fig. 5A4-15
I••IINSTALLATION
1. Harness connector
2. Battery mounting bar
3. Brake pipes
• After disconnecting brake pipe, cap or tape
the
openings of the brake pipe to prevent the
entry of foreign matter.
4. Ground cable bolt
5. Bracket fixing bolt and nut
6. Bracket
7. Hydraulic unit fixing nuts
8. Hydraulic unit
To install, follow the removal steps in the reverse
order,
noting the following points:
Torque
N·m Ob·ftl
Hydraulic unit fixing nuts 22 (16)
Bracket fixing bolt 24 (17)
Ground cable 14 (10)
Brake pipe (joint bolts) 16 (12)
• After installing the hydraulic unit, bleed brakes
completely.
See Section 5A "Hydraulic Brakes".

5A4-74 4-WHEEL ANTILOCK BRAKE SYSTEM (ABS)
!"' . .: ELECTRONIC BRAKE CONTROL MODULE (EBCM)
5 3
2
1••1 REMOVAL
1.
Shift knob
2. Front console assembly
Removal steps 1. Shift knob 2. Front console assembly 4 3. Lower cluster assembly
Installation steps
4. EBCM assembly
5. Bracket p
1 To install, follow the removal steps in
the reverse order.
Fig. 5A4-16
I••IJNSTALLATION
5. Bracket
• Connect the bracket to the EBCM.
•
To remove the front console, refer to section 4. EBCM assembly
10 "Body".
3. Lower cluster assembly
4. EBCM assembly
• Disconnect the EBCM connector from EBCM.
•
Remove four EBCM fixing bolts.
5. Bracket
• Disconnect the bracket from EBCM. •
Tighten
the EBCM assembly fixing bolts to
the specified torque.
~~~ Torque N·m Ub·in) 8 (69)
3. Lower cluster assembly
2. Front console assembly
1. Shift knob
•

G-SENSOR
, .... ,REMOVAL
1. Center console
4-WHEEL ANTILOCK BRAKE SYSTEM (ABS) 5A4-75
Fig. 5A4-17
Removal steps 1. Center console 2. G-sensor wiring connector 3. G·sensor fixing bolt 4. G-sensor
Installation steps To install, follow the removal steps in the reverse order.
, .. .,, INSTALLATION
4. G-sensor
• Refer to "Center Console Removal" in • Care should be taken so that the G-sensor is
not installed in the wrong direction.
Section 10.
2. G-sensor wiring connector
3. G-sensor fixing bolt
4. G-sensor
IL•ItNSPECTION AND REPAIR
Refer to "CHART
C-1" in this Section.
3. G-sensor fixing bolt
• Tighten the fixing bolt to the specified
torque.
I~I ____ T_o_rq~u~e ____ N~·-m~(lb_·_in~)--~ ___ 6_(_53~) __ __
2. G-sensor wiring connector
1. Center console
• Refer to "Center Console Installation" in
Section
10.

I••! INSTALLATION
5. Speed sensor
4-WHEEL ANTILOCK BRAKE SYSTEM (ABS) 5A4-77
,.....,. • Take care not to hit the speed sensor pole
piece during installation.
4. Speed sensor fixing bolt
• Tighten the fixing bolt to the specified
torque.
1~1 Torque N·m (lb·in) 8 (69)
3. Speed sensor cable fixing bolt (lower side)
• Tighten the fixing bolt to the specified
torque.
~~~ Torque N·m (lb-ft) 24 (18)
2. Speed sensor cable fixing bolt (Upper side)
• Tighten
torque.
1~1 Torque the
fixing
bolt to the specified
N-m (lb·in) 6 (52)
• Confirm that a white line marked on the
cable is not twisted when connecting the
speed sensor
cable.
1. Speed sensor connector

5A4-78 4-WHEEL ANTILOCK BRAKE SYSTEM (ABS)
REAR WHEEL SPEED SENSOR
3 Removal steps
2
/
1. Speed sensor connector 2. Clip (11 pieces)
3.
Sensor cable fixing bolt 4. Sensor fixing bolt 5. Speed sensor
j
/
Installation steps
To
install, follow the removal
steps in the reverse order.
FIG. 5A4-19
1+•1 REMOVAL
1. Speed sensor connector
2. Clip
3. Sensor cable fixing bolt
4. Sensor fixing bolt
5. Speed sensor (Fig. 5A4-19)
Fig.
5A4-20
IL•ItNSPECTION AND REPAIR
• Check speed sensor pole piece for presence
of foreign materials; remove any dirty, etc.
• Check the pole piece for damage, and
replace speed sensor if necessary.
• Check speed sensor cable for short or open,
and
replace with a new one if necessary. To
check
for cable short or open, bend or
stretch the cable while checking for
continuity.
• Check the sensor ring for damage including
tooth chipping, and if damaged replace the
axle shaft assembly. Refer to removal of the
sensor ring in
Section 48 "Rear Axle".
,,..,,INSTALLATION
5. Speed sensor
• Take care not to hit the speed sensor pole
piece during installation.
4. Sensor fixing bolt
• Tighten the fixing bolt to the specified
torque.
I~I ____ T_o_rq~u_e ____ N __ ·m __ O_b·_ft_) __ ~ ____ 18_(_1_3_) __
3. Sensor cable fixing bolt
• Tighten the fixing bolt to the specified
torque.
~~~ Torque N·m (lb.ft) 24 (18)
• Confirm that the cable is not twisted when
connecting the speed sensor cable.
2. Clip
1. Speed sensor connector
•

PARKING BRAKES 5C-1
SECTION 5C
PARKING BRAKES
'\f7 CAUTION:
Yf All brake attaching fasteners are an important attaching part in that they could affect performance of vital
parts and systems, and/or could result in major repair expense. They must be replaced with one ofthe same
part number
or with and equivalent part if replacement becomes necessary. Do not use replacement parts of
lesser quality or substitute design. Torque values must be used as specified during reassembly to assure
proper retention
of these parts.
CONTENTS
General Description ..................... 5C-1
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5C-2
On-Vehicle Service
..................... 5C-3
Parking Brake Lever Replacement . .

. . . . .
5C-3
Parking Brake Front Cable . .

. . . . . . . . . . .
5C-4
Parking Brake Rear Cable . .

. . . . . . . . . . . .
5C-5
Parking Brake Lining Inspection ......... 5C-6
Parking Brake Rotor (Drum) Inspection ... 5C-6
Parking Brake Adjustment .............. 5C-7
Main Data and Specifications ............. 5C-8
General
Specifications ................. 5C-8
Torque Specifications ................. 5C-8
GENERAL DESCRIPTION
Pulling up the parking brake lever by hand will set the
parking brake.
Once pulled up, the lever is held by a
ratchet type
lock until it is released. The position of the
lever is transmitted through cable/lever systems to the
rear
wheels. These parts are designed to obtain
sufficient braking force
when parking on slopes. When
the parking brake is set,
or when the ignition SW is in
the
"ON" position, the brake warning light illuminates.
The rear wheel parking brake is a duo-servo brake
(mechanical inside expansion type) built in to the rear
disc brake. Parking brake adjustment is made through
the adjusting
hole (bored through back plate). Parking
brake
lever stroke should be adjusted to 6 or 7
notches. Refer
to "Parking Brake Adjustment" in
this Section.

~
PARKING BRAKES SC-3
ON-VEHICLE SERVICE
PARKING BRAKE LEVER REPLACEMENT
1
4
6
Removal steps
1. Center console
2. Switch
connector 3. Bolt
4. Pin and snap pin
5. Parking brake
front cable 6. Parking brake lever
Installation
steps
To install, follow the removal
steps in the reverse order.
Fig. 5C-2
l••l REMOVAL
1.
2.
3.
4.
5.
Center console
• Refer to Section 1 0 "Body".
Switch connector
Bolt
Pin and snap pin
Parking brake front
cable
• Loosen the parking brake front cable at the
floor connector.
• Disconnect the parking brake front cable from
the parking brake lever (Fig. 5C-2).
6. Parking brake lever
1••1 INSTALLATION
6. Parking brake lever
5. Parking brake front cable
4. Pin and snap pin
r:::J • Apply grease (BESCO L-2 or equivalent) to the
D pin before installing.
3. Bolt
• Tighten the parking brake lever fixing bolt to
the specified torque.
~~~ Torque N·m (lb·in) 13 (113)
2. Switch connector
1. Center console
• Refer to Section 10 "Body".
•
To adjust the parking brake lever, see "Parking
Brake Adjustment" in this Section.