Yanmar 3TNV82A to 4TNV106T Industrial Engine Troubleshooting Manual

Description

• Model List:
  • 3TNV82A, 3TNV82A-B, 3TNV84, 3TNV84T, 3TNV84T-B, 3TNV88, 3TNV88-B, 3TNV88-U, 4TNV84, 4TNV84T, 4TNV84T-Z, 4TNV88, 4TNV88-B, 4TNV88-U, 4TNV94L, 4TNV98, 4TNV98-Z, 4TNV98-E, 4TNV98T, 4TNV98T-Z, 4TNV106, 4TNV106T

• 1. Failure Diagnosis
• 1.1. DTCs (Diagnostic Trouble Codes) General Description
• 1.1.1. DTC Code List
• 1.1.2. Description Items
• 1.1.3. Analog Input Related Failures
• 1.1.3.1. Rack position sensor
• 1.1.3.2. Accelerator sensor
• 1.1.3.3. Spare accelerator sensor (option)
• 1.1.3.4. Atmospheric pressure sensor (option)
• 1.1.3.5. ECU Temperature Sensor
• 1.1.3.6. Cooling water temperature sensor
• 1.1.3.7. SENSOR 5V
• 1.1.3.8. Power supply Voltage
• 1.1.4. Pulse Sensor Related Failures
• 1.1.4.1. Speed Sensor
• 1.1.4.2. Spare speed sensor (option)
• 1.1.4.3. Engine rotational speed
• 1.1.5. Contact Output Related Failures
• 1.1.5.1. Rack actuator Relay
• 1.1.5.2. Start Assist Relay
• 1.1.5.3. CSD solenoid valve
• 1.1.5.4. EGR valve
• 1.1.6. Contact Input Related Failures
• 1.1.6.1. Oil Pressure Related Failures
• 1.1.6.2. Battery Charge Related Failures
• 1.1.6.3. Water Temperature Switch
• 1.1.6.4. Air cleaner switch
• 1.1.6.5. Oil-Water Separator Switch
• 1.1.7. Actuators etc.
• 1.1.7.1. Rack actuator
• 1.1.7.2. E-ECU Internal Errors
• 1.1.7.3. CAN Communication
• 1.1.7.4. Immobilizer
• 1.2. Method and Procedure of Failure Diagnosis
• 1.2.1. Description Items
• 1.2.1.1. E-ECU Pin Layout Diagram
• 1.2.1.2. How to use the 2G eco-checker harness
• 1.2.2. Analog Input Related Failures
• 1.2.2.1. Rack position sensor
• 1.2.2.2. Accelerator sensor
• 1.2.2.3. Foot pedal
• 1.2.2.4. Spare Analog (Spare accelerator sensor, Atmospheric pressure sensor)
• 1.2.2.5. Pulse accelerator
• 1.2.2.6. ECU Temperature Sensor
• 1.2.2.7. Cooling water temperature sensor
• 1.2.2.8.
• 1.2.2.9. SENSOR 5V
• 1.2.3. Pulse Sensor Related Failures
• 1.2.3.1. Speed Sensor
• 1.2.3.2. Spare speed sensor
• 1.2.4. Contact Output Related Failures
• 1.2.4.1. RACK ACTUATOR RELAY
• 1.2.4.2. START ASSIST RELAY
• 1.2.4.3. CSD Solenoid Valve Coil
• 1.2.4.4. EGR valve
• 1.2.5. Contact Input Related Failures
• 1.2.6. Actuator Related Failures
• 1.2.6.1. Rack actuator
• 1.2.7. ECU Internal and Communication Errors
• 1.2.7.1. ECU Internal Errors
• 1.2.7.2. Main relay
• 1.2.7.3. CAN Communication
• 1.2.7.4. Immobilizer
• 1.2.8. FAILURE INDICATOR LAMP FLASHING PATTERN
• 1.3. Using the Failure Indicator for Failure Diagnosis
• 1.3.1. Flashing Patterns of the Failure Indicator
• 1.4. Factor Analysis
• 1.4.1. Type Eco-Governor Speed-Fluctuation Factor Analysis
• 1.5. Special Service Tools
• 1.6. Troubleshooting By Measuring Compression Pressure
• 1.6.1. Compression Pressure Measurement Method
• 1.6.1.1. Measured Value and Troubleshooting
• 1.7. Quick Reference Table For Troubleshooting
• 1.7.1. Failure Diagnostic List
• 1.8. Electrical Wiring