Yanmar TNV series electronic control trouble shooting manual.

This manual covers following engine models.

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

Index:
DTCs (Diagnostic Trouble Codes) General Description...1-3
DTC Code List .. 1-3
Description Items... 1-7
Analog Input Related Failures ...1-8
Pulse Sensor Related Failures ... 1-60
Contact Output Related Failures ...1-66
Contact Input Related Failures ... 1-100
Actuators etc... 1-114
E-ECU Internal and Communication Errors... 1-122
Method and Procedure of Failure Diagnosis ...1-133
Description Items...1-133
Analog Input Related Failures ...1-136
Pulse Sensor Related Failures ...1-164
Contact Output Related Failures ... 1-170
Contact Input Related Failures ... 1-187
Actuator Related Failures ...1-193
ECU Internal and Communication Errors ...1-197
FAILURE INDICATOR LAMP FLASHING PATTERN... 1-207
Using the Failure Indicator for Failure Diagnosis ...1-208
Flashing Patterns of the Failure Indicator... 1-208
Factor Analysis... 1-210
2G-Type Eco-Governor Speed-Fluctuation Factor Analysis . 1-210
2G-Type Eco-Governor Engine
Stalling/Start-Up Inability Factor Analysis... 1-213
2G-Type Eco-Governor Black Smoke Factor Analysis...1-216
Special Service Tools... 1-218
Troubleshooting By Measuring Compression Pressure ... 1-219
Compression Pressure Measurement Method...1-219
Quick Reference Table For Troubleshooting ... 1-222