Cover image for Automotive computer controlled systems : diagnostic tools and techniques
Title:
Automotive computer controlled systems : diagnostic tools and techniques
Author:
Bonnick, Allan W. M.
Personal Author:
Publication Information:
Boston : Butterworth-Heinemann, [2001]

©2001
Physical Description:
x, 252 pages : illustrations ; 25 cm
General Note:
Includes index.
Language:
English
ISBN:
9780750650892
Format :
Book

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TL272.53 .B66 2001 Adult Non-Fiction Non-Fiction Area
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Summary

Summary

This text is designed to explain the fundamental principles of engineering that lie behind the operation of vehicle electronic systems and aims to bring the reader up to the standard required for NVQ level 3.


Table of Contents

Prefacep. ix
Acknowledgementsp. xi
Chapter 1 Common Technologyp. 1
1.1 Common technologyp. 1
1.2 Engine-related systemsp. 2
1.3 Ignition systemsp. 2
1.4 Computer controlled petrol fuelling systemsp. 10
1.5 Engine management systems (EMS)p. 17
1.6 Anti-lock braking (ABS)p. 19
1.7 Traction controlp. 22
1.8 Stability controlp. 25
1.9 Air conditioningp. 27
1.10 Computer controlled damping ratep. 30
1.11 Computer controlled diesel engine management systemsp. 30
1.12 Summaryp. 38
1.13 Review questionsp. 38
Chapter 2 The Computer ECMp. 40
2.1 The fundamental parts of a computerp. 40
2.2 A practical automotive computer systemp. 41
2.3 Principles of operationp. 44
2.4 Computer datap. 45
2.5 Computer interfacesp. 46
2.6 Control of output devicesp. 47
2.7 Computer memoriesp. 48
2.8 Fault codesp. 51
2.9 Adaptive operating strategy of the ECMp. 51
2.10 Networking of computersp. 52
2.11 Vehicle network systemsp. 55
2.12 Prototype network systemsp. 59
2.13 Summaryp. 62
2.14 Review questionsp. 63
Chapter 3 Self-diagnosis and fault codesp. 65
3.1 Access to DTCsp. 65
3.2 Developments in self-diagnosisp. 78
3.3 Diagnostic equipment and limitations of DTCsp. 81
3.4 Review questionsp. 83
Chapter 4 Diagnostic tools and equipmentp. 85
4.1 Diagnostic tools that connect to the ECMp. 85
4.2 Breakout boxesp. 94
4.3 The digital multimeterp. 95
4.4 Portable flat screen oscilloscopesp. 96
4.5 Diagnostic tool and oscilloscope combinedp. 97
4.6 Pressure gaugesp. 99
4.7 Calibrating test instrumentsp. 103
4.8 Location charts and wiring diagramsp. 103
4.9 Sources of diagnostic datap. 103
4.10 Exhaust gas emissions and emission system testingp. 105
4.11 Review questionsp. 110
Chapter 5 Sensorsp. 112
5.1 Electromagnetic sensorsp. 112
5.2 Optical sensorsp. 118
5.3 Combustion knock sensorsp. 119
5.4 Variable resistance type sensorsp. 121
5.5 Temperature sensorsp. 125
5.6 Ride height control sensorp. 125
5.7 Manifold absolute pressure (MAP)p. 126
5.8 Exhaust gas oxygen sensorsp. 130
5.9 Air flow measurementp. 138
5.10 The practical importance of sensor knowledgep. 144
5.11 Review questionsp. 144
Chapter 6 Actuatorsp. 146
6.1 Actuator operationp. 146
6.2 Petrol engine fuel injectorsp. 147
6.3 Testing of petrol injectorsp. 149
6.4 Exhaust gas recirculationp. 154
6.5 Petrol engine idle speed controlp. 155
6.6 Ignition systemp. 161
6.7 ABS actuatorsp. 161
6.8 A clamping diodep. 162
6.9 Electronic unit injectorsp. 163
6.10 Review questionsp. 165
Chapter 7 Diagnostic techniquesp. 168
7.1 Circuit testingp. 168
7.2 Vehicle specific detailsp. 172
7.3 The 'six-steps' approachp. 173
7.4 Skills required for effective diagnosisp. 174
7.5 An approach to fault findingp. 175
7.6 Emissions related testingp. 179
7.7 Ignition system testsp. 198
7.8 Diesel injectionp. 200
7.9 Sensor tests on other systemsp. 202
7.10 Intermittent faultsp. 207
7.11 Summaryp. 209
7.12 Review questionsp. 210
Chapter 8 Additional technologyp. 212
8.1 Partial and absolute pressuresp. 212
8.2 The piezoelectric effectp. 213
8.3 Liquid crystal displaysp. 214
8.4 Countering cross-talkp. 216
8.5 Logic devicesp. 216
8.6 OBD IIp. 223
8.7 Computer performance (MIPS)p. 227
8.8 Supplementary restraint systems (SRS)p. 227
8.9 The coded ignition keyp. 231
8.10 Fault tracingp. 232
8.11 Precautions when working with computer controlled systemsp. 233
8.12 Variable capacitance sensorp. 233
8.13 Optoelectronicsp. 233
8.14 Review questionsp. 235
Appendix
A.1 Companies who supply equipment and diagnostic datap. 237
A.2 Answers to review questionsp. 237
A.3 OBD II standard fault codesp. 238
Indexp. 249