JAC HFC4DA1-2C engine. Service Manual — part 19

LT

LT

LT

LT Lighting

Lighting

Lighting

Lighting System

System

System

System

- 81 -

Removal/Installation

Removal/Installation

Removal/Installation

Removal/Installation

Removal

Removal

Removal

Removal of

of

of

of high-mounted

high-mounted

high-mounted

high-mounted brake

brake

brake

brake lamp

lamp

lamp

lamp

1.

Disconnect the negative cable of battery.

2.

Open the back door.

3.

Remove the mounting bolts and disconnect the
connecting wire of high-mounted brake lamp.

4.

Remove the high-mounted brake lamp.

LT

LT

LT

LT Lighting

Lighting

Lighting

Lighting System

System

System

System

- 82 -

Removal/Installation

Removal/Installation

Removal/Installation

Removal/Installation

Removal

Removal

Removal

Removal of

of

of

of rear

rear

rear

rear fog

fog

fog

fog lamp

lamp

lamp

lamp

1.

Disconnect the negative cable of battery.

2.

Remove the rear bumper.

3.

Disconnect the connecting wire of rear fog lamp.

4.

Remove the rear fog lamp.

LT

LT

LT

LT Lighting

Lighting

Lighting

Lighting System

System

System

System

- 83 -

Specification

Specification

Specification

Specification

Basic

Basic

Basic

Basic parameters

parameters

parameters

parameters

S/N

Name

Bulb Type

Power

1

Front

combination

lamp

High/low beam

H4 12V 60/55W

60/55W

H4 12V 60/55W

60/55W

Position lamp

12V 16W

16W

Turn signal lamp

12V 21W

21W

2

Rear

combination

lamp

Turn signal lamp

12V 21W

21W

Brake lamp

12V 21W

21W

Reversing lamp

12V 21W

21W

Rear fog lamp

12V 21W

21W

Position lamp

12V 5W

5W

3

Front fog lamp

12V 55W

55W

4

Side turn signal lamp

12V 5W

5W

5

High-mounted brake lamp

LED module

1.5W

6

License plate lamp

12V 10W

10W

7

Front ceiling lamp assembly

12V 10W

10W

8

Rear ceiling lamp assembly

12V 10W

10W

LT

LT

LT

LT Lighting

Lighting

Lighting

Lighting System

System

System

System

- 84 -

WW

WW

WW

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 85 -

Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

Applied models: SUNRAY products manufactured by JAC

Subject

Page

Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

Wiper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..86

Mounting position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Information functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 89

Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Testing

Testing

Testing

Testing

Wiper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..91

Definitions of pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Removal/Installation

Removal/Installation

Removal/Installation

Removal/Installation

Wiper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..95

Removal of the wiper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Removal of the windshield washing fluid reservoir. . . . . . . . . . . . . . . . . . . . . . . . . 97
Removal of the Wiper washing nozzle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Specification

Specification

Specification

Specification

Wiper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..99

Basic parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...99

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 86 -

Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

Wiper

Wiper

Wiper

Wiper system

system

system

system

Wiper system is the system used for cleaning raindrops on windshield and rear window in order to maintain clear
vision. The application of spray washer in the system is for dirt removal on the windshield. Therefore, it is a necessary
system for driving safety.

Component

Component

Component

Component drawing

drawing

drawing

drawing of

of

of

of wiper

wiper

wiper

wiper system:

system:

system:

system:

WW

WW

WW

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 87 -

Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

Mounting

Mounting

Mounting

Mounting position

position

position

position of

of

of

of wiper

wiper

wiper

wiper system

system

system

system components

components

components

components

1.

Wiper motor

Mounting position: in the engine compartment

2.

Wiper switch

Mounting position: on the combination switch
under the steering wheel

3.

Wiper blade

Mounting position: on the front windshield

4.

Wiper linkage

Mounting position: connecting with wiper blade at
the front windshield

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 88 -

Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

Mounting

Mounting

Mounting

Mounting position

position

position

position of

of

of

of wiper

wiper

wiper

wiper system

system

system

system components

components

components

components

5.

Washer nozzle

Mounting position: on the wiper decorative panel

6.

Washer motor and washing liquid reservoir

Mounting position: at the right front lower part of
engine compartment

WW

WW

WW

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 89 -

Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

Operation

Operation

Operation

Operation of

of

of

of wiper

wiper

wiper

wiper system

system

system

system function

function

function

function

1.

OFF gear

When it is at this gear, the wiper is in off state and
does not operate.

2.

INT gear

When it is at this gear, the wiper operates
intermittently.

3.

LOW gear

When it is at this gear, the wiper operates with a
low speed.

4.

HI gear

When it is at this gear, the wiper operates with a
high speed.

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 90 -

Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

Operation

Operation

Operation

Operation of

of

of

of wiper

wiper

wiper

wiper system

system

system

system function

function

function

function

5.

Operation of windshield cleaning

In the case of windshield cleaning, pull up the
wiper/washer lever. When the washer is turned on,
water which is sprayed from the water sprayer
cleans the windshield automatically and the wiper
shall operate simultaneously. Loosen the lever and
cleaning operation is stopped.

6.

Wiper intermittent operation

Shift the wiper switch to “INT” and the wiper shall
operate intermittently. Turn the adjustment knob of
intermittence when the wiper switch is at “INT”,
there shall be corresponding intermittence change.
The swing interval of wiper controlled by the
adjustable switch is in the range of 1~18 seconds.

WW

WW

WW

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 91 -

Diagnostic

Diagnostic

Diagnostic

Diagnostic Test

Test

Test

Test

Definitions

Definitions

Definitions

Definitions of

of

of

of pins

pins

pins

pins

No.

1

2

3

4

5

Color

Red

Green

Blue

Yellow

Black

Function

Positive

pole

Low

speed

High

speed

Return

Negative

pole

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 92 -

Diagnostic

Diagnostic

Diagnostic

Diagnostic Test

Test

Test

Test

Troubleshooting

Troubleshooting

Troubleshooting

Troubleshooting

1.

Fault mode：

No matter what gear is the wiper switch at, there are no operations of the wiper and washer.

Step

Operation

Yes

No

1

Inspect the wiper fuse for the existence of damage.

Go to Step 3

Step 2

2

Remove the wiper switch, inspect it and confirm that there are no faults in it.
Then measure the wire harness with a digital multimeter.

Inspect the voltages from the connector to the wiper switch and verify whether
they are normal.

Go to Step 5

Go to Step 4

3

Replace the damaged fuse.

Go to Step 2

4

Inspect the instrument panel wire harness between the fuse and the wiper switch
and repair if necessary.

Go to Step 5

5

Verify the existence of good contact between the wiper switch and wire harness
connector.

Disconnect the wire harness and wiper motor, inspect the instrument panel wire
harness among the wiper switch, the fuse and the wiper motor according to
relevant circuit diagrams. Repair the harness if necessary.

Go to Step 6

6

Inspect the wiper motor and repair if necessary. Confirm that there are no faults

in the wiper motor and verify the existence of good contact of the wiper motor
connector.

Go to Step 7

—

7

Inspect the ground wire of the wiper motor in the instrument panel wire harness
and repair if necessary.

Go to Step 8

8

Verify whether the system is intact.

2.

Fault mode: No operation at HI gear

Step

Operation

Yes

No

1

Disconnect the wire harness from the wiper motor. Measure the voltage at wire
harness side with a digital multimeter and verify whether the voltage is normal.

Go to Step 2

Go to Step 3

2

Inspect the internal structure of the wiper motor, replace or repair if necessary.

3

Remove the wiper switch and inspect it to confirm that there are no faults in it.
Inspect the instrument panel wire harness between the wiper switch and the wiper
motor. Repair the instrument panel wire harness if necessary.

3.

Fault mode: No operation at LOW gear

Step

Operation

Yes

No

1

Disconnect the wire harness connector from the wiper motor. Measure the
voltage at wire harness side with a digital multimeter and verify whether the
voltage is normal.

Go to Step 2

Go to Step 3

2

Inspect the internal structure of the wiper motor, replace or repair if necessary.

3

Remove the wiper switch and inspect it to confirm that there are no faults in it.
Replace or repair it if necessary.

Go to Step 4

4

Inspect the instrument panel wire harness between the wiper switch and the wiper
motor. Repair the instrument panel wire harness if necessary.

WW

WW

WW

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 93 -

Diagnostic

Diagnostic

Diagnostic

Diagnostic Test

Test

Test

Test

Troubleshooting

Troubleshooting

Troubleshooting

Troubleshooting

4.

Fault mode: No operation at INT gear only

Step

Operation

Yes

No

1

Remove the wiper relay and shift the ignition switch to ON and shift the wiper
switch to internal gear. Measure the voltage of relay pin with a digital multimeter
and verify whether the voltage is normal.

Go to Step 4

Go to Step 2

2

Remove the wiper switch and inspect it to confirm that there are no faults in it.
Replace or repair it if necessary.

Go to Step 3

3

Inspect the instrument panel wire harness between the wiper switch and the wiper
relay, repair the harness if necessary.

Go to Step 7

4

Inspect the ground wire at the relay for its good grounding.

Go to Step 6

Go to Step 5

5

Repair the ground wire and confirm whether it is in good grounding.

6

Replace the wire relay and confirm whether the system is intact.

7

Inspect the instrument panel wire harness between the wiper switch and the relay
and confirm that there are no faults in it.

Go to Step 8

Go to Step 10

8

Remove the new wiper relay and measure the voltage of the relay with a digital
multimeter to verify whether the voltage is normal.

Go to Step 10

9

Inspect the instrument panel wire harness and repair it if necessary. Confirm that
there are no faults in it.

Go to Step 10

10

Inspect the instrument panel wire harness between the relay and the wiper motor
and repair the instrument panel if necessary. Confirm that there are no faults in it
and verify whether the system is intact.

5.

Fault mode: No operation of the washer

Step

Operation

Yes

No

1

Remove the wiper/washer switch and shift the ignition switch to ON. Measure
the pin voltage of the switch at its original position with a digital multimeter to
verify whether the voltage is normal.

Go to Step 3

Go to Step 2

2

Inspect the instrument panel wire harness between the fuse and the wiper/washer
switch. Repair the instrument panel if necessary and confirm that there are no
faults in it

Go to Step 3

3

Inspect the internal structure of the wiper switch, replace or repair if necessary.
Confirm that there are no faults in the switch and verify whether the system is
intact.

Go to Step 4

4

Install the wiper/washer switch. Disconnect the washer motor connector and shift
the wiper/washer switch to WASHING. Measure the pin voltage of the washer
motor at its connector (the side of wire harness) with a digital multimeter to
verify whether the voltage is normal.

Go to Step 6

Go to Step 5

5

Inspect and repair the wire harness between the wiper/washer and the washer
motor according to relevant circuit diagrams.

Go to Step 6

6

Inspect the instrument panel wire harness between the wiper motor and the
wiper/washer switch according to relevant circuit diagrams and verify whether it
is intact.

Go to Step 7

7

Replace the washer motor and verify whether the system is intact.

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 94 -

Diagnostic

Diagnostic

Diagnostic

Diagnostic Test

Test

Test

Test

Troubleshooting

Troubleshooting

Troubleshooting

Troubleshooting

6.

Fault mode: Deviation of the wiper blade form its original position

Step

Operation

Yes

No

1

Remove the wiper switch and inspect the internal structure of it. Repair or
replace it if necessary and confirm that there are no faults in it.

Go to Step 2

2

Disconnect the wiper motor connector. Measure the pin voltage at the wire
harness side with a digital multimeter to verify whether the voltage is normal.

Go to Step 4

Go to Step 3

3

Inspect the instrument panel wire harness between the fuse and the wiper motor
according to relevant circuit diagrams and confirm that there are no faults in it.

Go to Step 4

4

Remove the wiper motor and inspect its structure. Repair or replace it if
necessary and verify whether the system is intact.

7.

Fault mode: Nonstop operation of the wiper

Step

Operation

Yes

No

1

Inspect the fuse and verify whether it is intact.

Go to Step 2

Go to Step 3

2

Replace the damaged fuse.

Go to Step 3

3

Remove the wiper switch and measure the voltage of the switch with a digital
multimeter to verify whether the voltage is normal.

Go to Step 5

Go to Step 4

4

Inspect the instrument panel wire harness between the fuse and the wiper switch
and repair it if necessary.

Go to Step 5

Go to Step 6

5

Inspect the internal structure of the wiper switch and replace or repair it if
necessary. Confirm that there are no faults in it and verify whether the system is
intact.

Go to Step 10

6

Disconnect the connector from the wiper motor, shift the ignition switch to ON
and shift the wiper switch to HI gear. Measure the pin voltage at the connector
(wire harness side) with a digital multimeter to verify whether the voltage is
normal.

Go to Step 7

Go to Step 10

7

Inspect the instrument panel wire harness between the wiper switch and the

relay. Confirm that there are no faults in it.

Go to Step 8

Go to Step 9

8

Verify the existence of good grounding of the ground wire with a digital
multimeter.

9

Remove the wiper motor and replace or repair it if necessary. Verify whether the
system is intact.

Go to Step 10

10

Inspect the instrument panel wire harness between the wiper switch and the wiper
motor according to relevant circuit diagrams. Repair it if necessary. Confirm that
there are no faults in it and verify whether the system is intact.

WW

WW

WW

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 95 -

Removal

Removal

Removal

Removal and

and

and

and Installation

Installation

Installation

Installation

Removal

Removal

Removal

Removal of

of

of

of the

the

the

the wiper

wiper

wiper

wiper

1.

Disconnect the connecting wire of battery.

2.

Remove mounting bolts of the wiper.

3.

Disconnect the connecting pipe of the windshield
washing fluid nozzle.

4.

Remove sealing rubber strips and fixing clamps of
the wiper decorative panel.

WW Wiper

Wiper

Wiper

Wiper and

and

and

and Washer

Washer

Washer

Washer System

System

System

System

- 96 -

Removal

Removal

Removal

Removal and

and

and

and Installation

Installation

Installation

Installation

Removal

Removal

Removal

Removal of

of

of

of the

the

the

the wiper

wiper

wiper

wiper

5.

Take down the wiper blade and wiper decorative
panel.

6.

Remove connecting bolts of the wiper linkage.

7.

Take down the wiper linkage and wiper motor.