Isuzu Trooper (1998-2002 year). Manual — part 948

8D–326

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 ON

REPLACE 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

YES

NO

YES

NO

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

YES

NO

•

•

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

YES

NO

•

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

YES

NO

REPLACE THE ALARM & RELAY CONTROL UNIT

WIRING SYSTEM

8D–327

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?

YES

NO

•

•

TURN THE START SWITCH ON
IS THE BATTERY VOLTAGE APPLIED BETWEEN THE REAR
WIPER MOTOR HARNESS SIDE CONNECTOR 3 G-6 AND THE
GROUND?

YES

NO

•

•

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

YES

NO

REPAIR A POOR CONNECTION AT THE CONNECTORS
OR AN OPEN CIRCUIT BETWEEN 2 B-7 AND
1 G-6

8D–328

WIRING SYSTEM

3 Rear Wiper Motor Does Not Operate at “Wiper” 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

YES

NO

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 “Washer” 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

YES

NO

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

8D–329

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