Yanmar 6LY3 series Service Manual page 357

Troubleshooting by DTC Fault Codes
12/05
P1210/4 (Rack Actuator)
DTC
Electrical Circuit Chart
See P1210/4 (Rack Actuator) on page 13-67 and Rack Position Sensor on page 13-83.
DTC Fault Code
DTC / FMI 1. Condition, 2. Fault, 3. Time to Detect, 4. Display
1. Key switch ON
2. Abnormally high engine speed (rpm)
P1210/4 3. Uncontrollable rack actuator
4. 0.1 seconds
5. CHECK ENGINE on the TELEFLEX display
Engine stops because the rack position is set to the stop position.
Fail Mode
Turn off the rack actuator relay.
Limited Operation Engine stop
Fail Release No
Require key off to reset the fail mode
Remarks Turn the key OFF and ON again to reset the failure code.
FFD (Freeze Frame Data) is recorded and can be logged by the YDT.
Fault
DTC / FMI
P1210/4 Rack actuator related wire harness open or short.
Troubleshooting Procedure
1. Check the wire harness and the connector of the rack actuator and actuator relay.
2. Check the rack actuator lag performance. If at fault, replace fuel injection pump.
6LY3 Service Manual
P1210/4 Rack Actuator
Probable Cause
© 2007 Yanmar Marine International
TROUBLESHOOTING
Check Point
Wire harness
Rack actuator
13-67