Yanmar 6LY3 series - Section 13 Troubleshooting

6LY3 Service Manual
13-1
© 2007 Yanmar Marine International
6LY3 Service Manual
Section 13
TROUBLESHOOTING
Page
Safety Precautions ........................................................................ 13-3
Introduction.................................................................................... 13-3
Preparation Before Troubleshooting ............................................. 13-4
Teleflex Display Indications..................................................... 13-4
Troubleshooting by Symptom........................................................ 13-5
Troubleshooting Fuses, Relays and Harnesses.......................... 13-21
Fuse, Relay and Harness ...................................................... 13-21
Fuse Burns Out ..................................................................... 13-21
Test Check ............................................................................ 13-21
Checking a Fuse.................................................................... 13-21
Troubleshooting Blown Fuses ............................................... 13-22
Electronic Control System ........................................................... 13-26
Engine Control System Diagram ........................................... 13-26
Troubleshooting by DTC Fault Codes ......................................... 13-28
TELEFLEX i5601E Display Alarm Screen Information.......... 13-28
Terms .................................................................................... 13-28
List of DTC (Diagnostic Trouble Codes)................................ 13-30
Troubleshooting the Temperature Sensor............................. 13-40
Troubleshooting the Pressure Sensor................................... 13-77
Wiring Diagrams .................................................................... 13-81