JAC HFC4DA1-2C engine. Service Manual — part 15

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SC Battery

Battery

Battery

Battery and

and

and

and Charging

Charging

Charging

Charging System

System

System

System

- 17 -

Removal

Removal

Removal

Removal and

and

and

and Installation

Installation

Installation

Installation

Installation

Installation

Installation

Installation of

of

of

of Battery

Battery

Battery

Battery

1.

Open the engine hood.

2.

Place the battery on its support plate steady.

3.

Install the positive connecting wire of battery.

Tighten mounting bolts of battery positive

pole.

4.

Install the negative connecting wire of battery.

Tighten

mounting

bolts

of

battery

negative pole.

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Battery

Battery

Battery and

and

and

and Charging

Charging

Charging

Charging System

System

System

System

- 18 -

Removal

Removal

Removal

Removal and

and

and

and Installation

Installation

Installation

Installation

Removal

Removal

Removal

Removal of

of

of

of Generator

Generator

Generator

Generator

1.

Disconnect the battery connection.

2.

Remove the front bumper.

3.

Remove the condenser, intercooler and water tank.

4.

Remove the cooling fan.

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Battery

Battery

Battery and

and

and

and Charging

Charging

Charging

Charging System

System

System

System

- 19 -

Removal

Removal

Removal

Removal and

and

and

and Installation

Installation

Installation

Installation

Removal

Removal

Removal

Removal of

of

of

of Generator

Generator

Generator

Generator

5.

Unscrew tension bolts of generator.

6.

Remove the generator belt.

7.

Remove the mounting bolts of generator.

8.

Disconnect the generator harness connectors.

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Battery

Battery

Battery and

and

and

and Charging

Charging

Charging

Charging System

System

System

System

- 20 -

Removal

Removal

Removal

Removal and

and

and

and Installation

Installation

Installation

Installation

Removal

Removal

Removal

Removal of

of

of

of Generator

Generator

Generator

Generator

9.

Remove the generator.

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SC Battery

Battery

Battery

Battery and

and

and

and Charging

Charging

Charging

Charging System

System

System

System

- 21 -

Removal

Removal

Removal

Removal and

and

and

and Installation

Installation

Installation

Installation

Installation

Installation

Installation

Installation of

of

of

of Generator

Generator

Generator

Generator

1.

Connect the generator harness connectors.

2.

Install mounting bolts of generator.

3.

Install the generator belt.

4.

Tighten tension bolts of generator.

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SC Battery

Battery

Battery

Battery and

and

and

and Charging

Charging

Charging

Charging System

System

System

System

- 22 -

IP Instrument

Instrument

Instrument

Instrument and

and

and

and Warning

Warning

Warning

Warning System

System

System

System

- 23 -

Instrument

Instrument

Instrument

Instrument and

and

and

and Warning

Warning

Warning

Warning 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

Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 24

Mounting position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Performance characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 25

Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Testing

Testing

Testing

Testing

Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 26

Function description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Definitions of pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Removal/Installation

Removal/Installation

Removal/Installation

Removal/Installation

Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 33

Removal of Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Specification

Specification

Specification

Specification

Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 35

Basic parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...35

IP Instrument

Instrument

Instrument

Instrument and

and

and

and Warning

Warning

Warning

Warning System

System

System

System

- 24 -

Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

Combination

Combination

Combination

Combination instrument

instrument

instrument

instrument

Sunray instruments are all-digital instruments which take stepping motors as the structural forms. Analog or
digital signals of all sensors are converted into digital signals via processing of central processing units (CPU) to
drive the stepping motors. After the processing, the drive signals are sent to respective indicating instruments of
stepping motors and actuate their operations.

Locations

Locations

Locations

Locations of

of

of

of combination

combination

combination

combination instruments:

instruments:

instruments:

instruments:

Sunray combination instrument is in front of the driver.

IP Instrument

Instrument

Instrument

Instrument and

and

and

and Warning

Warning

Warning

Warning System

System

System

System

- 25 -

Instruction

Instruction

Instruction

Instruction and

and

and

and Operation

Operation

Operation

Operation

Performance

Performance

Performance

Performance characteristics

characteristics

characteristics

characteristics of

of

of

of the

the

the

the combination

combination

combination

combination instrument:

instrument:

instrument:

instrument:

All-digital instruments are adopted in Sunray series, which do not only eliminate disadvantages of conventional
analog display instruments, but also possess following advantages:

1.

The indication accuracy may reach 1/12°as the
highest.

2.

It enables the stable indication without the
application of damping oil and pointer balancer.

3.

It enables easy installation and debugging without
any hysteresis errors that the instrument possesses
good reliability, good consistency and strong
vibration resistance.

4.

It enables long service life and wide operating
range of -40°~+85°.

5.

It enables low voltage (5V) and low current drive,
all-digital control and low consumption.

6.

It enables strong anti-interference.

7.

It enables smaller thickness and weight of the
instrument.

8.

LED is applied as indicator lamps and backlights
which enables lower power consumption, longer
service life and lower heat. And LED backlight
technology is adopted for homogeneous and soft
lighting.

9.

LCD is applied for mileage display and mileage
subtotal to avoid stuck phenomenon with the
application of gear display and it is easily installed
and debugged.

10. SMD parts and reflow soldering technology may

prevent the instrument from faults caused by
insufficient solder and void and enable lower
weight of the instrument.

11. Software warning is adopted in fuel warning and

the fuel warning switch in the sensor can be
revocatory.

12. With proper modifications of instrument software

parameters, the instrument can be applicable to
vehicles with different gear ratios, speeds, fuels and
temperature sensors and the applicable range is
very wide.

IP Instrument

Instrument

Instrument

Instrument and

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and

and Warning

Warning

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- 26 -

Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Test

Test

Test

Test

Function

Function

Function

Function description

description

description

description of

of

of

of the

the

the

the combination

combination

combination

combination instrument

instrument

instrument

instrument

1.

Water temperature gauge

It processes water temperature signals received by
the instrument, converts these signals to voltage
signals firstly then to digital signals via AD and
controls the water temperature stepping motor for
the indication of corresponding values.

2.

Tachometer

It carries out the algorithmic-processing for signals
sent by the generator, controls the speed stepping
motor for the indication of corresponding values.
Corresponding speed signal frequency for every
1000R/MIN is 260HZ.

3.

Speedometer

It carries out the algorithmic-processing for signals
sent by the vehicle speed sensor and controls the
vehicle speed stepping motor for the indication of
corresponding values.

4.

Fuel gauge

It processes resistance signals sent by the fuel
sensor, converts these signals to voltage signals
firstly then to digital signals via AD and controls
the fuel stepping motor for the indication of
corresponding values.

IP Instrument

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Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Test

Test

Test

Test

Function

Function

Function

Function description

description

description

description of

of

of

of the

the

the

the combination

combination

combination

combination instrument

instrument

instrument

instrument

5.

Accumulative total and subtotal odometer
The LCD is applied for the indication of total
mileage and subtotal mileage. The display interface
can be switched via the application of the adjusting
lever at the right side. The subtotal odometer can
be reset via pressing the adjusting lever for 2S.

6.

Water temperature warning lamp
In

the

case

of

overhigh

engine

antifreeze

temperature, the warning lamp lightens.

7.

Brake shoe wear indicator lamp
In the case of friction lining wear with a certain
extent, the brake shoe wear indicator lamp will be
lit to remind you of brake lining replacement.

8.

Engine oil pressure warning lamp
In the case of excessively low engine oil pressure,
the warning lamp will keep lit after engine start or
it will be lit during vehicle running, indicating
insufficient engine oil pressure.

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Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Test

Test

Test

Test

Function

Function

Function

Function description

description

description

description of

of

of

of the

the

the

the combination

combination

combination

combination instrument

instrument

instrument

instrument

9.

Charging warning lamp
If the indicator lamp keeps lit or it will be lit during
vehicle running, it indicates that there may be
electrical faults in the charging system.

10. Exhaust fault indicator lamp

In the case of exhaust emission exceeding the
standard value, this lamp will be lit.

11. Fuel filter warning lamp

In the case of water level of oil-water separator
reaching danger level, the oil-water separator water
volume indicator lamp lightens.

12. Diesel oil preheating indicator lamp

The preheating indicator lamp may keep lit for a
while or go out immediately. The lit time varies
according to the engine and coolant temperatures.

IP Instrument

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Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Test

Test

Test

Test

Function

Function

Function

Function description

description

description

description of

of

of

of the

the

the

the combination

combination

combination

combination instrument

instrument

instrument

instrument

13. EPC indicator lamp

If the indicator lamp is in the state of normally on,
it indicates that there are electronic faults.

14. Seat belt warning lamp

It will keep lit until the driver’s seat belt has been
fastened.

15. Left turn signal indicator lamp

When the left turn signal lamp is lit, this indicator
lamp will be lit together with a turn indicator lamp
in the corresponding direction. When the turn
signal lamp is turned off, this indicator lamp will
go out automatically.

16. Right turn signal indicator lamp

When the right turn signal lamp is lit, this indicator
lamp will be lit together with a turn indicator lamp.
When the turn signal lamp is turned off, this
indicator lamp will go out automatically.

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Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Test

Test

Test

Test

Function

Function

Function

Function description

description

description

description of

of

of

of the

the

the

the combination

combination

combination

combination instrument

instrument

instrument

instrument

17. Upper beam indicator lamp

When the upper beam headlamp is connected, this
indicator lamp will be lit.

18. Airbag indicator lamp

If the airbag indicator lamp keeps lit or is lit during
vehicle

running,

it

indicates

that

there

are

abnormalities in airbag system.

19. ABS signal lamp

In the case of opening door with key or vehicle
self-inspection, the ABS lamp may keep lit for a
few seconds then go out. If the lamp does not
lighten or keep lit, it indicated that there are faults
in ABS.

20. Parking brake indicator lamp

When the hand brake is pulled up, the indicator

lamp lightens automatically and the lamp will go
out with the hand brake down.

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- 31 -

Diagnosis

Diagnosis

Diagnosis

Diagnosis and

and

and

and Test

Test

Test

Test

Function

Function

Function

Function description

description

description

description of

of

of

of the

the

the

the combination

combination

combination

combination instrument

instrument

instrument

instrument

21. Front fog lamp indicator lamp

When the front fog lamp is lit, corresponding mark
of the indicator lamp will be lit. When the fog lamp
is turned off, corresponding indicator lamp goes
out.

22. Rear fog lamp indicator lamp

When the rear lamp is lit, corresponding mark of
the indicator lamp will be lit. When the fog lamp is
turned off, corresponding indicator lamp goes out.

23. Door open warning lamp

When doors are not closed, the indicator lamp
keeps lit until all doors are closed and locked
completely.

24. Fuel warning lamp

When the remaining fuel in the fuel tank is lower
than the warning level, the fuel warning lamp
lightens to remain the driver of fuel filling.

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- 32 -

Diagnosis

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Diagnosis

Diagnosis and

and

and

and Test

Test

Test

Test

Definitions

Definitions

Definitions

Definitions of

of

of

of instrument

instrument

instrument

instrument pins

pins

pins

pins

Terminal NO.

Terminal name

Terminal NO.

Terminal name

A1

Back lighting(-)

B1

Right turn(+)

A2

Back lighting (+)

B2

Upper beam(+)

A3

Frequency division output

B3

NC

A4

Main relay

B4

Instrument LIN communication

A5

Oil-water separator(+)

B5

NC

A6

NC

B6

NC

A7

NC

B7

NC

A8

NC

B8

NC

A9

NC

B9

NC

A10

Engine fault(-)

B10

NC

A11

Charging indicator lamp(-)

B11

NC

A12

Engine oil pressure(-)

B12

NC

A13

Brake fault(-)

B13

NC

A14

Engine inspection(EPC)(-)

B14

NC

A15

NC

B15

NC

A16

Engine fault(-)

B16

NC

A17

NC

B17

Parking brake(-)

A18

Water temperature signal

B18

Preheating(-)

A19

Fuel signal

B19

Seat belt(-)

A20

Vehicle speed signal

B20

Door open indicator lamp(-)

A21

Speed signal

B21

NC

A22

Constant power supply

B22

Rear fog lamp(+)

A23

GROUND

B23

Front fog lamp(+)

A24

Ignition

B24

NC

A25

GROUND

B25

NC

A26

NC

B26

NC

A27

ABS

B27

NC

A28

NC

B28

NC

A29

GROUND

B29

NC

A30

NC

B30

NC

A31

NC

B31

NC

A32

Left turn(+)

B32

NC