Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1109
ELECTRICAL-BODY AND CHASSIS 8-193
6. Auto-stop function of the wiper motor does not operate
Checkpoint
Trouble Cause
Countermeasure
Repair open circuit or
connector contact
Open circuit or poor connector
contact
NG
Repair open circuit or
connector contact
Open circuit or poor connector
contact
NG
Continuity between the
intermittent relay harness side
connector 6
C-3
and the
wiper motor harness side
connector 5
C-4
Replace the intermittent relay
Relay malfunction
NG
Intermittent relay function
Wiper motor function
1. Disconnect the wiper motor
connector
2. Connect the motor
connector 2
C-4
to the
battery (+) terminal and 3
C-4
to the (-) terminal,
and then change the
connection of the battery (+)
terminal to the connector 6
C-4
while the motor
rotating at a low speed
3. Check to see if the wiper
motor stops at the auto stop
position when connecting
the connector terminals 2
C-4
and 5
C-4
in this
condition
Continuity between the wiper
& washer SW. connector
terminals 5
C-43
and 6
C-43
at the “OFF” position
OK
Replace the wiper motor
Wiper motor malfunction
NG
Repair an open circuit or a
poor connection of the
connectors between the fuse
No. CB-8 (20A) (RHD: CB-6
(20A) ) and 6
C-4
Voltage between the wiper
motor harness side connector
terminal 6
C-4
and the
ground (Should be battery
voltage present)
Open circuit or poor connector
contact
NG
OK
OK
OK
8-194 ELECTRICAL-BODY AND CHASSIS
WASHER
1. Washer motor does not operate
Checkpoint
Trouble Cause
Countermeasure
Reinstall or replace the fuse
No. CB-8 (20A) (RHD: CB-6
(20A) )
Poor fuse contact or blown
NG
Repair or an open circuit or a
poor connection of the
connectors between 1
C-17
and 7
C-43
Open circuit or poor connector
contact
NG
Voltage between the washer
motor harness side connector
terminal 1
C-17
and the
ground when the washer
button is depressed (Should
be battery voltage present)
Repair grounding point
(
C-36
) contact
Poor grounding point contact
NG
Grounding point (
C-36
)
Replace the washer motor
Motor malfunction
NG
Washer motor function when
connecting the motor side
connector 1
C-17
to the
battery (+) terminal, and the
connector 2
C-17
to the (-)
terminal (Should the washer
motor rotate)
OK
Repair open circuit or
connector contact
Open circuit or poor connector
contact
NG
Continuity between 2
C-17
and
C-36
OK
Continuity between the wiper
& washer SW. side connector
terminals
C-43
and 7
C-43
when the washer button is
depressed
LHD:
Fuse No. CB-8 (20A)
RHD:
Fuse No. CB-6 (20A)
OK
Replace the wiper & washer
SW.
SW. malfunction
NG
Repair or an open circuit or a
poor connection of the
connectors between the fuse
No. CB-8 (20A) (RHD: CB-6
(20A) )and 1
C-43
Voltage between the wiper &
washer SW. harness side
connector terminal 1
C-43
and the ground (Should be
battery voltage preset)
Open circuit or poor connector
contact
NG
OK
OK
OK
ELECTRICAL-BODY AND CHASSIS 8-195
REMOVAL AND INSTALLATION
WIPER AND WASHER SWITCH
Removal
Refer to the removal steps of the LIGHTING SWITCH
(COMBINATION SWITCH) in “ LIGHTING “ of this section.
Installation
Follow the removal procedure in the reverse order to install the
wiper and washer switch.
Pay close attention to the important points mentioned in the
following paragraphs.
Connector
Be absolutely sure that the wiper and washer switch connector
is securely connected.
This will prevent a poor contact and an open circuit.
8-196 ELECTRICAL-BODY AND CHASSIS
INSPECTION AND REPAIR
Switch side
Control Switch Connections
Terminal
No.
SW position
6
3
5
4
2
1
7
Mist
Off
INT
Lo
Hi
Wash
Wiper Motor Inspection
Connector
Low Speed Inspection
1. Clamp the wiper motor in a vise.
The moving parts must be clear of the vise.
2. Connect the connector terminals to the battery.
Refer to the illustration.
3. Check the wiper motor low speed operation.
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