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Hyundai: Engine D4FA. Manual - part 44

DIESEL CONTROL SYSTEM

FLA -47

Immobilizer SMARTRA
ground

All

Ground (0 ~ 0.5 Volt)

N.A

A/C Pressure Transducer
supply

Ignition ON

All

4.9 ~ 5.1 Volt

N.A

Cruise Control Supply

Ignition ON

All

V batt

ISO-K interface

N.A

Fuel consumption signal

Engine running

All

Pulse

3.8V

0 ~ 0.5 V

LGJF500M

Terminal 15(switched bat.+)

Ignition ON

All

V batt

VGT control

Engine running

All

PWM 300

V batt

0 ~ 0.5 V

LGJF500K

Accelerator position sensor
1 ground

All

Ground (0 ~ 0.5 Volt)

Accelerator position sensor
2 signal

Ignition ON

IDLE/WOT

Analog

0.25~0.51V/1.6~2.5V

N.A

Brake main switch signal

Ignition ON

Brake press /

release

Vbatt / 0~0.5V

N.A

Water sensor signal

Ignition ON

ON / OFF

0~0.5V / Vbatt

N.A

Blower switch input signal

Ignition ON

ON / OFF

0~0.5V / Vbatt

N.A

Accelerator position sensor
1 supply

Ignition ON

All

4.9 ~ 5.1 Volt

Accelerator position sensor
2 supply

Ignition ON

All

4.9 ~ 5.1 Volt

FLA -48

FUEL SYSTEM

Immobilizer imterface

Engine speed output signal

Engine running

All

Pulse

V batt

0 ~ 0.5 V

LGJF500K

Cruise Control Set Lamp

Engine running

ON / OFF

0~0.5V / Vbatt

N.A

Heated oxygen sensor
heater control

Engine running ＆

Hearter ON

All

PWM

100Hz

V batt

0 ~ 0.5 V

LGJF500K

N.A

A/C switch ON signal

Engine running

Switch ON / OFF

Vbatt / 0~0.5V

N.A

A/C compressure switch
signal input

Engine running

Switch ON / OFF

Vbatt / 0~0.5V

Neutral recognition switch
signal input

Ignition ON

Neutral / other

gear

0~0.5V / Vbatt

N.A

Heated oxygen sensor supply

Engine running ＆

Hearter ON

All

~ 3.0 V

Heated oxygen sensor
current pump

Engine running ＆

Hearter ON

All

-3.5V

-3.2V

-2.8V

LGJF500Q

N.A

Malfunction indication
lamp (MIL)

Ignition ON

ON / OFF

0~0.5V / Vbatt

Glow indication lamp

Ignition ON

ON / OFF

0~0.5V / Vbatt

A/C compressor relay control

Ignition ON

ON / OFF

0~0.5V / Vbatt

Fan Low

Engine running

ON / OFF

0~0.5V/ Vbatt

Main relay control

Ignition ON

ON / OFF

0~0.5V / Vbatt

N.A

Vehicle speed sensor signal

Vehicle running

ALL

Pulse

V batt

0 ~ 0.5 V

LGJF500K

DIESEL CONTROL SYSTEM

FLA -49

N.A

Clutch switch signal

Ignition ON

Press / Release

0~0.5V / Vbatt

Redundant brake switch
signal

Ignition ON

Brake press /

release

0~0.5V / Vbatt

MT/AT Auto Recognition

Ignition ON

MT / AT

Vbatt / 0~0.5V

N.A

CAN LOW

CAN HIGH

N.A

Heated oxygen sensor
ground

Engine running ＆

Hearter ON

All

~ 2.5 V

Heated oxygen sensor signal

Engine running ＆

Hearter ON

All

-3.5V

-3.2V

-2.8V

LGJF500Q

N.A

Intake air temperature
sensor signal

Ignition ON

All

Analog

4.8V

0.2V

LGJF500I

Throttle flap control

Ignition ON

Ignition OFF

PWM

300Hz

Cruise Control on Lamp(Low
Side)

Vehicle running

ON / OFF

0~0.5V / Vbatt

Immobilizer indication lamp

Ignition ON

ON / OFF

0~0.5V / Vbatt

Glow relay control

Ignition ON

ON / OFF

0~0.5V / Vbatt

Auxiliary electric heater
control

Engine running

ON / OFF

0~0.5V / Vbatt

FLA -50

FUEL SYSTEM

CIRCUIT DIAGRAM

ED1A4E6C

4(C101-2)-BATTERY(-)

2(C101-2)-BATTERY(-)

28(C101-1)-IG KEY SUPPLY

GND

50(C101-1)-CAMSHAFT POSITION SENSOR
SIGNAL

20(C101-1)-GND

6(C101-2)-BATTERY(-)

Camshaft Position Sensor

72(C101-2)-MAIN RELAY CONTROL

Main Relay

15(C101-1)-GLOW RELAY CONTROL

Glow Plug Relay

Glow Plug

BATTERY

Ignition switch

E C M

1(C101-2)-BATTERY VOLTAGE VIA FUSE(10A)

5(C101-2)-BATTERY VOLTAGE VIA FUSE(20A)

3(C101-2)-BATTERY VOLTAGE VIA FUSE(20A)

70(C101-2)-A/C COMP. RELAY CONTROL

A/C Comp. Relay

After Main Relay

A/C Comp.

Battery

Refer to "Blower & A/C"
Diagram

Blower switch

54(C101-2)-A/C ON S/W INPUT

40(C101-2)- WATER SENSOR SIGNAL

56(C101-2)-A/C COMP. S/W INPUT

42(C101-2)-BLOWER SWITCH SIGNAL

80(C101-2)-REDUCDANT BRAKE S/W SIGNAL

38(C101-2)-BRAKE S/W SIGNAL

Stop lamp

Brake switch

Water sensor

After Main Relay

Battery(+)

EGNG105A

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