Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Service manual — part 1316
8–184 ELECTRICAL-BODY AND CHASSIS
4.
Wiper does not operate at “HI” position
Checkpoint
Trouble Cause
Countermeasure
Open circuit or poor
connector contact
Repair open circuit or
connector contact
Continuity between the
wiper & washer SW.
connector terminals
3 C-43 and 4 C-43 at the
“HI” position
Wiper motor malfunction
Replace the wiper motor
Wiper motor function when
connecting the motor
connector 1 C-4 to the
battery (+) terminal, and
3 C-4 to the (–) terminal
(Should the wiper motor
rotate at a high speed)
Open circuit or poor
connector contact
Repair open circuit or
connector contact
Continuity between 4 C-43
and 1 C-4
OK
OK
NG
NG
NG
5.
Rotation of the wiper motor does not stop
SW. malfunction
Replace the wiper & washer
SW.
Continuity in the wiper &
washer SW.
Wiper motor malfunction
Replace the wiper motor
Wiper motor function
OK
NG
NG
ELECTRICAL-BODY AND CHASSIS 8–185
6.
Auto-stop function of the wiper motor does not operate
Checkpoint
Trouble Cause
Countermeasure
Open circuit or poor
connector contact
Repair open circuit or
connector contact
Continuity between the
wiper & washer SW.
connector terminals
5 C-43 and 6 C-43 at the
“OFF” position
Wiper motor malfunction
Replace the wiper motor
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
Open circuit or poor
connector contact
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
Repair open circuit or
connector contact
Continuity between the
intermittent relay harness
side connector 6 C-3 and
the wiper motor harness
side connector 5 C-4
NG
OK
OK
OK
NG
NG
NG
Relay malfunction
Replace the intermittent
relay
Intermittent relay function
OK
NG
8–186 ELECTRICAL-BODY AND CHASSIS
WASHER
1.
Washer motor does not operate
Checkpoint
Trouble Cause
Countermeasure
Poor fuse contact or blown
Reinstall or replace the fuse
No. CB-8 (20A) (RHD: CB-6
(20A))
LHD:
Fuse No. CB-8 (20A)
RHD:
Fuse No. CB-6 (20A)
SW. malfunction
Replace the wiper & washer
SW.
Continuity between the
wiper & washer SW. side
connector terminals 1 C-43
and 7 C-43 when the
washer button is depressed
Open circuit or poor
connector contact
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
present)
Open circuit or poor
connector contact
Repair or an open circuit or
a poor connection of the
connectors between
1 C-17 and 7 C-43
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)
Poor grounding point
contact
Repair grounding point
( C-36 ) contact
Grounding point ( C-36 )
NG
OK
OK
OK
NG
NG
NG
NG
OK
Motor malfunction
Replace the washer motor
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)
NG
OK
Open circuit or poor
connector contact
Repair open circuit or
connector contact
Continuity between 2 C-17
and C-36
NG
OK
ELECTRICAL-BODY AND CHASSIS 8–187
WIPER AND WASHER SWITCH
Removal
Refer to the removal steps of the LIGHTING SWITCH
(COMBINATION SWITCH) in “LIGHTING” of this section.
OFF
PULL
MIST
OFF
HI
LO
825RV068
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.
REMOVAL AND INSTALLATION
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