Contents

Introduction

Abbreviations used in the text

The device of the electronic engine control system (ECM)

• General description
• General arrangement and principle of operation of the ECM
• Electronic control unit (ECU)
• Device and characteristics
• Communication interfaces
• Sensors for monitoring engine operation parameters
• Location of sensors
• Sensor failures
• Wiring diagram
• Engine speed sensors DG6
• The device and principle of operation of the engine speed sensor
• Engine speed sensor
• Sensor characteristic
• Connector configuration
• Camshaft speed sensor
• Connector configuration
• Failure of engine speed sensors
• Charge air pressure and temperature sensor
• Sensor characteristic
• Connector configuration
• Charge air pressure and temperature sensor failure
• Oil pressure and temperature sensor
• Sensor characteristic
• Connector configuration
• Oil pressure and temperature sensor failure
• Fuel pressure and temperature sensor
• Connector configuration
• Fuel pressure and temperature sensor failure
• Coolant temperature sensor
• Sensor characteristic
• Connector configuration
• Coolant temperature sensor failure
• Rail pressure sensor
• Sensor characteristic
• Connector configuration
• Rail pressure sensor failure
• Metering device with solenoid valve
• Characteristics of the dosing device
• Connector configuration
• Dispenser failure
• Exhaust gas recirculation
• Exhaust flap
• Characteristics of the EGR damper position sensor
• Connector configuration
• EGR Throttle Position Sensor Failure
• EGR damper valve
• EGR damper characteristic
• Connector configuration
• EGR damper valve failure
• Accelerator pedal position sensor (electronic pedal)
• Device and principle of operation
• Characteristics of the electronic pedal
• Connector configuration
• Accelerator pedal position sensor failure
• Sensors that ensure vehicle traffic safety
• Brake pedal position sensor
• Brake pedal position sensor failure
• Clutch position sensor (for manual gearbox)
• Clutch position sensor failure
• Engine brake button
• Engine brake button failure
• Water in fuel sensor
• Water-in-fuel sensor failure

On-board diagnostic system (OBD)

• Description of the on-board diagnostics system for engines of the YaMZ-530 family
• List of electronic control system components controlled by OBD
• Engine systems and components
• Fuel system
• Nitrogen oxide control system
• Particulate emission control system
• Description of the principles of operation of the database system
• Nitrogen oxide control
• Particulate control system
• Fuel system monitoring
• Algorithm for determining nitrogen oxide emissions
• Torque limiter
• Description of external speed limits
• OBD system failure warning lamp
• Sensors for the control of harmful substances in the exhaust gases of the OBD system
• Air temperature sensor (OBD system)
• Characteristics of the air temperature sensor
• Connector configuration
• Air temperature sensor failure
• Differential pressure sensor (OBD system)
• Characteristics of the differential pressure sensor
• Connector configuration
• Differential pressure sensor failure

Engine diagnostics

• Self-monitoring of the ECM during vehicle operation
• Fault reporting devices
• Diagnostic lamp
• View diagnostics codes
• OBD system failure warning lamp
• Registration of fault codes
• Detection and elimination of errors and malfunctions
• Engine operation with active diagnostic codes
• Engine operation with intermittent diagnostic codes
• Computer engine diagnostics
• Security requirements
• The order of computer diagnostics
• Fault codes
• Troubleshooting
• Diagnostics of actuators
• Appendix A
• Figure A1 - electrical circuit diagram of the YaMZ-53601 engine with an on-board diagnostic system
• Appendix B
• Table B1 - fault codes for engines without on-board diagnostics
• Table B2 - fault codes for engines with on-board diagnostics