relay ISUZU TROOPER 1998 Service Repair Manual

WIRING SYSTEM 8DÐ313
6 Auto-Stop Function of The Windshield Wiper Motor Does Not Operate
·
·DISCONNECT THE CONNECTOR OF THE WINDSHIELD WIPER &
WASHER SWITCH
WITH THE SWITCH SET AT “OFF” POSITION, IS THERE
CONTINUITY BETWEEN THE SWITCH CONNECTOR TERMI-
NALS 5 B-52 AND 6 B-52 ?
YESNO
·
·
·DISCONNECT THE CONNECTOR OF THE WINDSHIELD WIPER
MOTOR
CONNECT THE MOTOR CONNECTOR 2 C-38 TO THE BATTERY
(+) TERMINAL AND 3 C-38 TO THE (–) TERMINAL, AND THEN
CHANGE THE CONNECTION OF THE BATTERY (+) TERMINAL
TO THE CONNECTOR 6 C-38 WHILE THE MOTOR ROTATING
AT A LOW SPEED
WHEN CONNECTING THE CONNECTOR TERMINALS 2 C-38 AND
5 C-38 IN THIS CONDITION, DOES THE MOTOR STOP AT AUTO-
STOP POSITION?REPAIR OR REPLACE THE WINDSHIELD WIPER &
WASHER SWITCH
REPLACE THE ALARM & RELAY CONTROL UNIT REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 5 C-38 AND
12 B-7
YESNO
YESNO
·
·TURN THE STARTER SWITCH ON
IS THERE ANY BATTERY VOLTAGE APPLIED BETWEEN THE
WINDSHIELD WIPER MOTOR HARNESS SIDE CONNECTOR
TERMINAL 6 C-38 AND GROUND?REPAIR OR REPLACE THE WINDSHIELD WIPER MOTOR
YESNO
·
·DISCONNECT THE CONNECTOR OF THE ALARM & RELAY
CONTROL UNIT
IS THERE CONTINUITY BETWEEN THE HARNESS SIDE
CONNECTOR 12 B-7 AND THE WINDSHIELD WIPER MOTOR
HARNESS SIDE CONNECTOR 5 C-38 ?REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN THE FUSE C-5 (15A)
AND 6 C-38

8DÐ316 WIRING SYSTEM
Rear Wiper/Washer
General Description
The circuit consists of rear wiper/washer switch,
alarm & relay control unit, rear wiper motor and rear
washer motor.
When rear wiper switch on rear wiper/washer
switch is depressed, battery voltage is applied to
rear wiper motor through alarm & relay control unit
and activates rear wiper motor.
When rear washer switch on rear wiper/washer
switch is depressed, battery voltage is applied to
rear washer motor and activates rear washer motor.
At the same time, the current as an input signal for
activating rear wiper motor flows to alarm & relay
control unit, then alarm & relay control unit
activates rear wiper motor to wipe glass cleaning
fluid.

WIRING SYSTEM 8DÐ317
Circuit Diagram (RHD)-1
ALARM & RELAY
CONTROL UNITRR WIPER/
WASHER SW
B-2
BODY-LH
A
B
4
B-77
I-16
8
B-7
B-7
2.0
B 0.85
B 0.5
L/B0.5
L/B0.5
L/B 0.5
L/B3.0
B/R
C-6 10A
RR WIPER&WASHER
9
B-18
BODY-RH2.0
B
B-7 AUTO STOP
0.5
LG/L2
CB-7 MOTORH-25
3 314
I-16H-16
I-16
0.5
LG/R0.5
LB
0.5
LG/W 0.5
LB
D 0.5
LG/W0.5
LG/W0.3
R/G 0.85
G/R
3 STARTER SW
(IG2)
ILLUMINATION
CONTROLLER(3)TAIL RELAY
(4)
I-16
I-16
18
B-7
WASHER WIPER22H-2511 862
H-26
RR
WASHER RR
WIPER
D08RW643

WIRING SYSTEM 8DÐ319
Parts Location (RHD)
Legend
(1) B-2
(2) Alarm and Relay Control Unit (B-7)
(3) I-16
(4) H-16, H-25, H-26
(5) B-18(6) Fuse Box
(7) H-32
(8) RR Wiper Motor (G-6)
(9) RR Washer Motor (G-2)
(10) H-38
(11) R-3
4
5
6
789
11
123
10
D08RWA07

8DÐ320 WIRING SYSTEM
Circuit Diagram (LHD)-1
ALARM & RELAY
CONTROL UNITRR WIPER/
WASHER SW
B-2
BODY-RH
A
B
4
B-77
I-16
8
B-7
B-7
0.85
B 0.5
L/B0.5
L/B0.5
L/B 0.5
L/B3.0
B/R
C-6 10A
RR WIPER&WASHER
9
B-7 AUTO STOP
0.5
LG/L2
CB-7 MOTORH-25
3 21 13
I-16H-16
I-16
0.5
LG/R0.5
LB
0.5
LG/W 0.5
LB
D 0.5
LG/W0.5
LG/W0.3
R/G 0.85
G/R
3 STARTER SW
(IG2)
ILLUMINATION
CONTROLLER(3)TAIL RELAY
(4)
I-16
I-16
18
B-7
WASHER WIPER4H-2513 862
H-25
RR
WASHER RR
WIPER
D08RW072

WIRING SYSTEM 8DÐ323
Diagnosis
Quick Chart for Check Points
Check pointFuse
C-6 (10A)Wiper &
washer
SWRear
wiper
motorWasher
motorCable
harness
1 Rear wiper motor does not operateTrouble mode
2 Auto-stop function of the rear wiper
motor does not operate
3 Rear wiper motor does not operate at
“WIPER” position
4 Rear wiper motor does not operate at
“WIPER & WASHER” position
Alarm &
relay
control unit
5
6 Rear washer motor does not operate
Rotation of the rear wiper motor does
not stop

8DÐ324 WIRING SYSTEM
1 Rear Wiper Motor Does Not Operate
·IS FUSE C-6 (10A) NORMAL?
YES
·
·DISCONNECT THE CONNECTOR OF THE REAR WIPER &
WASHER SWITCH
IS THE CONTINUITY IN THE REAR WIPER & WASHER
SWITCH NORMAL?
·TURN THE STARTER SW ONREPLACE FUSE C-6 (10A)
NO
YES
·IS THE BATTERY VOLTAGE APPLIED BETWEEN THE REAR
WIPER & WASHER SWITCH HARNESS SIDE CONNECTOR
TERMINAL 7 I-16 AND GROUND?REPAIR OR REPLACE THE REAR WIPER & WASHER
SWITCH
NO
YESNO
YESNO
IS R-3 GROUNDED SECURELY?REPAIR OR REPLACE THE REAR WIPER MOTOR
·DISCONNECT THE CONNECTORS OF THE REAR WIPER MOTOR
·WITH THE MOTOR SIDE CONNECTOR 2 G-6 CONNECTED TO
THE BATTERY (+) TERMINAL AND THE CONNECTOR 4 G-6 TO
THE (–) TERMINAL, DOES THE MOTOR ROTATE?REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN FUSE C-6 (10A)
AND 7 I-16
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 8 I-16 AND 18 B-7
YESNO
·
·DISCONNECT THE CONNECTORS OF THE ALARM & RELAY
CONTROL UNIT
TURN THE STARTER SWITCH ON
·WITH THE REAR WIPER & WASHER SWITCH AT WIPER
POSITION, IS THE BATTERY VOLTAGE APPLIED BETWEEN
18 B-7 AND THE GROUND?GROUND IT SECURELY
YESNO
·IS THERE CONTINUITY BETWEEN HARNESS SIDE CONNECTOR
3 B-7 AND 2 G-6 ?
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 3 B-7 AND 2 G-6
YESNO
REPLACE THE ALARM & RELAY CONTROL UNIT

WIRING SYSTEM 8DÐ325
2 Auto-Stop Function of The Rear Wiper Motor Does Not Operate
REPAIR OR REPLACE THE REAR WIPER MOTOR ·
·
·
·DISCONNECT THE CONNECTOR OF THE REAR WIPER MOTOR
CONNECT THE MOTOR SIDE CONNECTOR 2 G-6 TO
THE BATTERY (+) TERMINAL AND THE TERMINAL 4 G-6 TO THE
(–) TERMINAL
WHILE ROTATING THE MOTOR, CHANGE THE CONNECTION OF
THE BATTERY (+) TERMINAL TO THE CONNECTOR 3 G-6 , AND
THEN CONNECT THE CONNECTOR 1 G-6 AND 2 G-6
DOES THE REAR WIPER STOP AT THE AUTO-STOP POSITION
IN THIS CONDITION?
YESNO
·
·TURN THE START SWITCH ON
IS THE BATTERY VOLTAGE APPLIED BETWEEN THE REAR
WIPER MOTOR HARNESS SIDE CONNECTOR 3 G-6 AND THE
GROUND?
YESNO
·
·DISCONNECT THE CONNECTOR OF THE ALARM & RELAY
CONTROL UNIT
IS THERE CONTINUITY BETWEEN THE RELAY HARNESS SIDE
CONNECTOR 2 B-7 AND THE WIPER MOTOR HARNESS SIDE
CONNECTOR 1 G-6 ?REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN THE FUSE C-6 (10A)
AND 3 G-6
REPLACE THE ALARM & RELAY CONTROL UNIT
YESNO
REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 2 B-7 AND
1 G-6

8DÐ326 WIRING SYSTEM
3 Rear Wiper Motor Does Not Operate at ÒWiperÓ Position
·IS THE CONTINUITY IN THE REAR WIPER & WASHER
SWITCH NORMAL?
YES
·
·
·DISCONNECT THE CONNECTOR OF THE ALARM & RELAY
CONTROL UNIT
TURN THE STARTER SWITCH ON
WITH THE REAR WIPER & WASHER SWITCH SET AT “WIPER”
POSITION, IS THE BATTERY VOLTAGE APPLIED BETWEEN
THE CONTROL UNIT HARNESS SIDE CONNECTOR 18 B-7 AND
GROUND?REPAIR OR REPLACE THE REAR WIPER & WASHER
SWITCH
NO
YESNO
REPLACE THE ALARM & RELAY CONTROL UNIT REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT BETWEEN
18 B-7 AND 8 I-16
4 Rear Wiper Motor Does Not Operate at ÒWasherÓ Position
·IS THE CONTINUITY IN THE REAR WIPER & WASHER
SWITCH NORMAL?
YES
·
·
·DISCONNECT THE CONNECTOR OF THE ALARM & RELAY
CONTROL UNIT
TURN THE STARTER SWITCH ON
WITH THE REAR WIPER & WASHER SWITCH SET AT “WASH”
POSITION, IS THE BATTERY VOLTAGE APPLIED BETWEEN
THE CONTROL UNIT HARNESS SIDE CONNECTOR 8 B-7 AND
THE GROUND?REPAIR OR REPLACE THE REAR WIPER & WASHER
SWITCH
NO
YESNO
REPLACE THE ALARM & RELAY CONTROL UNIT REPAIR A POOR CONNECTION AT THE
CONNECTORS OR AN OPEN CIRCUIT BETWEEN
6 I-16 AND 8 B-7

WIRING SYSTEM 8DÐ327
5 Rotation of The Rear Wiper Motor Does Not Stop
·IS THE CONTINUITY IN THE REAR WIPER & WASHER
SWITCH NORMAL?
·DISCONNECT THE ALARM & RELAY CONTROL
UNIT CONNECTORS
TURN THE STARTER SW ON
IS THE BATTERY VOLTAGE APPLIED BETWEEN
HARNESS SIDE CONNECTOR 2 B-7 AND
THE GROUND?
YES
REPAIR OR REPLACE THE REAR WIPER & WASHER
SWITCH
NO
YES
REPAIR OR REPLACE THE RR WIPER MOTOR REPLACE THE ALARM & RELAY CONTROL UNIT
NO