Isuzu Trooper (1996-2001 year) Electrical Manual — part 25
44-3
ANTI-LOCK BRAKE SYSTEM (ABS)
FL-6
ABS
40A
WHT/GRN
FUSE/
RELAY
BOX
Battery
14
YEL/GRN
HOT AT ALL TIMES
13
ELECTRONIC
BRAKE
CONTROL
MODULE
(EBCM)
Solid-state:
Do not check
resistance.
HOT IN ON OR START
C-10
METER
GAUGE
10A
SB13
10
H-25
BLU/YEL
16
I-10
26
(S Model)
15
I-9
DASH
FUSE
BOX
“ABS”
INDICATOR
LIGHT
BLU/YEL
BLU/YEL
Meter
Assembly
18
H-16
YEL
YEL
METER
ASSEMBLY
16
C-4
Battery
“ABS”
Indicator
light
control
F-9
ABS
20A
FUSE/
RELAY
BOX
WHT/GRN
27
“ABS
active”
output
9
4WD
engaged
input
WHT/GRN
Torque-on-Demand
(T.O.D.) System
LT GRN/RED
PNK
See Dash,
Fuse Box,
page 11-3.
Circuit Schematic
Shift-on-the-Fly System
44-4
ANTI-LOCK BRAKE SYSTEM (ABS)
(Refer to Section 201 for photographs.)
Component
Photo No.
Back-up Light Switch
Beneath vehicle, on right side of transmission
118
. . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Switch
Below I/P, on brake pedal support
74
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dash Fuse Box
Behind left dash side trim panel
55
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Link Connector (DLC)
C63 (16-BLK)
Left I/P lower cover, behind access cover
47
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diode Box A
In fuse/relay box
37
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronic Brake Control
Module (EBCM)
Right front of engine compartment
41
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse/Relay Box
Right side of engine compartment, on inner fender panel
41
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
G Sensor - ABS
Beneath rear of center console
126
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Left Front ABS Speed
Sensor
Inside of left front wheel
8
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Left Rear ABS Speed
Sensor
Inside of left rear wheel
101
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powertrain Control Module
(PCM)
Right side of engine compartment
60
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Front ABS Speed
Sensor
Inside of right front wheel
8
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Right Rear ABS Speed
Sensor
Inside of right rear wheel
101
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Switch 1-2
Beneath vehicle, on right side of transmission
15
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connector
C-13 (2-BRN)
Lower left side of engine compartment
7
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-41 (2-BRN)
Lower right side of engine compartment
7
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F-2 (2-BRN)
Beneath rear of vehicle, above right side of differential
98
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
F-3 (2-BLK)
Beneath rear of vehicle, above right side of differential
98
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
H-7 (20-BRN/WHT)
Below I/P, above left dash side trim panel, on bracket
69
. . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
H-8 (16-WHT)
Below I/P, above left dash side trim panel, on bracket
70
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
H-10 (16-BLU)
Left front of engine compartment
27
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-11 (16-BLK)
Left front of engine compartment
27
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-12 (20-WHT)
Below I/P, above right dash side trim panel, on bracket
100
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
H-15 (14-WHT)
Below I/P, above right dash side trim panel, on bracket
115
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
H-16 (22-WHT)
Behind right dash side trim panel
120
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-25 (22-BLU)
Below I/P, above left dash side trim panel, on bracket
71
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
H-33 (20-WHT)
In floor, below right front seat
110
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-41 (16-BLK)
Right front of engine compartment
31
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-42 (16-BLU)
Right front of engine compartment
31
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-55 (16-BLK)
Right side of engine compartment
59
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H-57 (16-BLU)
Right side of engine compartment
59
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-9 (30-GRN)
On left top of meter assembly
53
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-10 (22-GRN)
On right top of meter assembly
53
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
M-1 (2-GRY)
Beneath center of vehicle, top right side of transmission
15
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
M-8 (2-BLU/GRY)
Beneath center of vehicle, top right side of transmission
118
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
Ground
C-16
Left rear corner of engine compartment, on inner fender panel
39
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
C-39
Right rear corner of engine compartment, on inner fender panel
45
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
C-85
Lower right front of engine compartment
122
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E-30
Top right rear of engine
16
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Location Index
44-5
ANTI-LOCK BRAKE SYSTEM (ABS)
The anti-lock brake system adjusts the brake pressure
whenever a wheel is about to lockup, allowing the driver
to maintain greater control of the vehicle under heavy
braking conditions. Under normal driving conditions,
the anti-lock brake system (ABS) functions the same as
a standard power assisted brake system.
The electronic brake control module (EBCM) receives
inputs from individual ABS speed sensors and the
G-sensor. The electronic brake control module (EBCM)
uses the inputs to control the hydraulic pressure
applied to each caliper.
The electronic brake control module (EBCM) has a
self-diagnosis function which monitors the system’s
function. When a malfunction is detected, the “ABS” in-
dicator light is turned on and the anti-lock braking func-
tion is disabled; but the standard power assisted brake
system continues to operate normally.
Refer to Section 5 of the Workshop Manual for further
anti-lock brake system (ABS) diagnosis.
Circuit Operation
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Dash Fuse Box
Data Link Connector (DLC)
C63 (16-BLK)
Driver’s Inflator Module
Driver’s Seat Belt Switch
Passenger’s Inflator Module
SRS Coil Assembly
SRS Fuse Box
SRS Unit
Component Index
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