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Engine JAC HFC4DA1-2C. Manual - part 51

Maintenance manual for sunray hfc4da1-2c china-IV diesel engines

203

Fault Tree:

Get the Technical Support.

Repair the harness.

Repair or replace.

Check the component connector.

Connector fault

Check ECU connectors.

Electrical fault

Check the sensor.

Sensor faults

Replace the sensor.

Repair or replace.

Check continuity and insulating

property

Replace components.

Does the problem still exist?

Preface

This SUNRAY Service Manual is hereby compiled by the Customer Service

Department of JAC to help the technical service personnel correctly understand and

get familiar with SUNRAY products of JAC INTERNATIONAL better and to provide

them with the ability of quick repair and proper maintenance. This manual comprises

five volumes: Engine Control, Engine Mechanical, Chassis, Body Electrical, and

Body Accessories.

The Body Electrical Volume details the technical standards of electrical component

removal/installation, test, debugging and diagnosis for SUNRAY long-wheelbase

vehicles, including whole vehicle circuit diagrams, definitions of connectors and

locations of ground points for SUNRAY vehicles for quicker service and maintenance

of customer.

When replacement is necessary, only genuine spare parts recommended by JAC can

be adopted.

No part of this manual can be reproduced or used in any form or by any mean without

JAC INTERNATIONAL

March 2011

Body

Body Electrical

Electrical

Electrical Volume

Volume

Volume Content

Content

Contentssss

- 1 -

Body

Body Electrical

Electrical

Electrical Volume

Volume

Volume Content

Content

Contentssss

Battery

Battery and

and

and Charging

Charging

Charging System

System

Battery........................................................................................................................................................................ SC 2

Mounting Position................................................................................................................................................. SC 2

Precautions.............................................................................................................................................................SC 3

Generator....................................................................................................................................................................SC 4

Overview............................................................................................................................................................... SC 4

Battery........................................................................................................................................................................ SC 5

Maintenance...........................................................................................................................................................SC 5

Fault diagnosis....................................................................................................................................................... SC 7

Generator.................................................................................................................................................................. SC 11

Fault determination.............................................................................................................................................. SC 11

Operating principle.............................................................................................................................................. SC 12

Battery...................................................................................................................................................................... SC 14

Removal of Battery..............................................................................................................................................SC 14

Installation of Battery.......................................................................................................................................... SC 16

Generator..................................................................................................................................................................SC 18

Removal of Generator..........................................................................................................................................SC 18

Installation of Generator...................................................................................................................................... SC 21

Instrument

Instrument and

and

and Warning

Warning

Warning System

System

Instrument..................................................................................................................................................................IP 24

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

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

Instrument..................................................................................................................................................................IP 26

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

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

Instrument..................................................................................................................................................................IP 33

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

Instrument..................................................................................................................................................................IP 35

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

ETACS

ETACS Body

Body

Body Computer

Computer

ETACS..................................................................................................................................................................... ET 38

Mounting position...............................................................................................................................................ET 38

Information functions..........................................................................................................................................ET 39

ETACS..................................................................................................................................................................... ET 40

System structure..................................................................................................................................................ET 40

Introduction functions......................................................................................................................................... ET 41

Control strategy...................................................................................................................................................ET 47

Diagnosis and Service.........................................................................................................................................ET 49

ETACS Pin Definition........................................................................................................................................ ET 50

ETACS..................................................................................................................................................................... ET 52

Removal of ETACS............................................................................................................................................ ET 52

Body

Body Electrical

Electrical

Electrical Volume

Volume

Volume Content

Content

Contentssss

- 2 -

Installation of ETACS.........................................................................................................................................ET 53

ETACS..................................................................................................................................................................... ET 54

Basic parameters................................................................................................................................................. ET 54

Lighting

Lighting System

System

Lighting.................................................................................................................................................................... LT 56

Overview............................................................................................................................................................. LT 56

Lighting configuration table................................................................................................................................LT 58

Introduction to functions..................................................................................................................................... LT 59

Fault diagnosis.................................................................................................................................................... LT 62

Removal of headlamp..........................................................................................................................................LT 76

Removal of clearance lamps................................................................................................................................LT 77

Removal of front fog lamps................................................................................................................................ LT 78

Removal of ceiling lamps....................................................................................................................................LT 79

Removal of rear tail lamps.................................................................................................................................. LT 80

Removal of high-mounted brake lamp................................................................................................................ LT 81

Removal of rear fog lamp....................................................................................................................................LT 82

Lighting System........................................................................................................................................................LT 83

Basic parameters................................................................................................................................................. LT 83

Wiper

Wiper and

and

and Washer

Washer

Washer System

System

Wiper..................................................................................................................................................................... WW 86

Mounting position............................................................................................................................................ WW 87

Information functions....................................................................................................................................... WW 89

Wiper..................................................................................................................................................................... WW 91

Definitions of pins............................................................................................................................................WW 91

Troubleshooting................................................................................................................................................WW 92

Wiper..................................................................................................................................................................... WW 95

Removal of the wiper....................................................................................................................................... WW 95

Removal of the windshield washing fluid reservoir.........................................................................................WW 97

Removal of the Wiper washing nozzle.............................................................................................................WW 98

Wiper..................................................................................................................................................................... WW 99

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

Reversing

Reversing Radar

Radar

Reversing Radar..................................................................................................................................................... PT 102

Mounting position sensor.................................................................................................................................. PT 102

Operating principle........................................................................................................................................... PT 103

Reversing Radar..................................................................................................................................................... PT 104

Definitions of reversing radar computer pins....................................................................................................PT 104

Troubleshooting................................................................................................................................................ PT 106

Reversing Radar..................................................................................................................................................... PT 108

Removal of the reversing radar computer......................................................................................................... PT 108

Removal of the reversing radar sensor.............................................................................................................. PT 110

Reversing Radar......................................................................................................................................................PT 111

Basic parameters................................................................................................................................................PT 111

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