brake ISUZU TROOPER 1995 Workshop Manual

4-WHEEL ANTILOCK BRAKE SYSTEM (ABS) 5A4-67
CHARTTC-2
SENSOR OUTPUT INSPECTION PROCEDURE
CHECK THE MINIMUM SPEED OF EACH SENSOR BY MODE F6: WHEEL SENSORS (REFER TOP. 5A4-31)
REPLACE
WITH NEW SENSORS AND RECHECK SENSOR OUTPUT CONDITIONS BY MODE F6: WHEEL SENSORS
CHECK THE
SENSOR HARNESS FOR SUSPECTED
DISCONNECTION (CHECK WHILE SHAKING HARNESS/CONNECTOR)
REPLACE
WITH NEW SENSOR ROTOR AND CHECK ONCE AGAIN THE OUTPUT CONDITIONS OF SENSORS WITH MODE F6: WHEEL SENSORS
I TECH 1 I

5A4-68 4-WHEEL ANTILOCK BRAKE SYSTEM (ABS)
CHART C-3 [@f((l
4WD SWITCH INSPECTION PROCEDURE
WITH THE KEY TURNED OFF, CONNECT PINOUT BOX
I TURN THE KEY ON I
MEASURE THE VOLTAGE BETWEEN THE TERMINALS 15 AND 20 IN THE FOLLOWING T/F LEVER POSITIONS:
T!F LEVER POSITION STANDARD VOLTAGE
2H 12V
4H ov
4L ov
l OTHER THAN STANDARD j AS STANDARD I
clJ
CHECK CONTINUITY BETWEEN 4WD SW CONNECTOR M11-1 AND M12-1
I
2H
I
NO CONTINUITY
I 4L, 4H CONTINUITY
$ $
REPLACE 4WD sw I REPAIR CONNECTOR OR HARNESS BETWEEN CONNECTOR C4-15 AND C16-3
Ill

4-WHEEL ANTILOCK BRAKE SYSTEM (ABS) 5A4-69
CHARTTC-3
4WD
SWITCH INSPECTION PROCEDURE
CHECK CONTINUITY BElWEEN 4WD SW CONNECTOR M11-1 AND M12-1
2H
4L,4H
NO CONTINUITY
CONTINUITY
REPAIR CONNECTOR
OR HARNESS BElWEEN CONNECTOR C4-15 AND C16-3
I TECH 1 I

5A4-70 4-WHEEL ANTILOCK BRAKE SYSTEM (ABS)
CHART C-4
TRANSMISSION INPUT INSPECTION
PROCEDURE (A/T MODEL)
. TURN THE KEY OFF, CONNECT THE PINOUT BOX . TURN THE KEY ON
• CHECK CONTINUITY BETWEEN THE PINOUT BOX TERMINAL 16 AND 20
SHIFT POSITION
p R N
D 2 L
CONTINUITY: 0 X 0 X
X X 0 NO CONTINUITY: X
$
@
I NG IN ·p·, ·w, "D" OR ·2· RANGE j I NG IN "R" OR "L" RANGE I
I • TURN
THE KEY OFF ! • TURN THE KEY OFF . WITH A!T CONTROLLER CONNECTOR
1.
WITH AfT CONTROLLER
CONNECTOR
REMOVED, CHECK 16 AND 20 REMOVED,
CHECK 16 AND A!T CONTINUITY CONTROLLER CONNECTOR B10 I CONTINUITY
I
~ $ $ $
. HARNESS SHORT I" CHECKA/T I I" CHECK AfT I
•
DISCONNECTED TOGND CONTROLLER
CONTROLLER HARNESS
• REPAIR HARNESS
• REPAIR HARNESS
r--I
p I In_ -,
A1 A2 .... .... ., .. .. ... A11 A12 81 12 13 .... .,. 19 810 111817
...:....:.r-,..,
•

4-WHEEL ANTILOCK BRAKE SYSTEM (ABS) 5A4 -71
CHART C-4 [JEefl:(l
TRANSMISSION INPUT INSPECTION PROCEDURE (M/T MODEL)
• WITH THE KEY TURNED OFF, CONNECT PINOUT BOX AND EBCM • CHECK CONTINUITY BETWEEN THE TERMINAL 16 AND 20 (GEAR POSITION-N)
I
I I
NO
CONTINUITY I I CONTINUITY I
I I
WHIT KEY ON, MEASURE
THE VOLTAGE BETWEEN 16 AND I . sw OR HARNESS SHORT TO GND I
20 AS FOLLOWS: •
REPAIR SW OR HARNESS
I SHIFT POSITIONS I 1, 2, R I OTHER POSITIONS I
I
VOLTAGE I 11.5-14.5V I ov I
I
I I
OTHER THAN SPECIFIED I
I AS SPECIFIED I
I @ . T/M SW IS FAULTY • DISCONNECTED HARNESS • REPAIR SW OR HARNESS

5A4-72 4-WHEEL ANTILOCK BRAKE SYSTEM (ABS)
CHARTTC-4 I TECH 1 I
TRANSMISSION INPUT INSPECTION PROCEDURE
I CONNECT TECH , I
I
I SELECT MODE FO: DATA LIST I
MIT J AfT
I I
SHIFT POSITION
DISPLAY SHIFT POSITION DISPLAY
1,
2, R OFF-ROAD INPUT CLOSED L, R OFF-ROAD
INPUT CLOSED
3, 4, 5, N
OFF-ROAD INPUT OPEN OTHER THAN ABOVE OFF-ROAD
INPUT OPEN
SHIFT GEAR AND MAKE SURE OF THE ABOVE OPERATE THE LEVER AND MAKE SURE OF THE ABOVE
I I
ciJ $ $ ciJ
ABNORMAL T/M SW, INHIBITOR SW, OR HARNESS
• REPAIR T/M SW, INHIBITOR SW, OR HARNESS
•

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.

if.. ~ ' -
5A4-76 4-WHEEL ANTILOCK BRAKE SYSTEM (ABS)
FRONT WHEEL SPEED SENSOR
1••1 REMOVAL
1. Speed sensor connector
2. Sensor cable fixing bolt (Upper side)
3. Sensor cable fixing bolt (Lower side)
4. Sensor fixing bolt
5. Speed sensor
5
Removal steps
1. Speed sensor connector 2. Sensor cable fixing bolt (Upper side)
3.
Sensor cable fixing bolt (Lower side)
4. Sensor fixing bolt 5. Speed sensor
Installation steps
To install, follow the removal
steps in the reverse order.
Fig. 5A4-18
IL•IINSPECTION AND REPAIR
• Check the speed sensor pole piece for presence
of foreign materials; remove any dirt, etc.
• Check the pole piece for damage; replace speed
sensor
if necessary.
• Check the speed sensor cable for short or open
circuit, 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 sensor ring
assembly. Refer
to removal of the sensor ring in
Section
4C "Front hub and disc".
•