Actuators Etc.; Rack Actuator; P1212/4: Failure With Rack Actuator (Low Current) - Yanmar 3TNV82A Troubleshooting Manual

FAILURE DIAGNOSIS

Actuators etc.

Rack actuator

(1) P1212/4: Failure with Rack Actuator (Low Current)

DTC P1212/4
DTC Detecting Conditions
1 - Precondition; 2 - Detecting condition(s); 3 - Flashing pattern of failure indicator
1. Key switch ON.
2. Rack actuator current detected equal to or below the lower limit.
3. Eight flashes.
Movement at Error occurrence
Error Mode [Stop Immediately]:
The engine stops running.
Run restricted? Yes: The rack actuator relay is turned OFF, and the rack position is forcibly set to the
Recovery No.
Conditions
Remarks
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
The rack actuator wiring may be disconnected or short-circuited with GND.
•
• The rack actuator may be faulty.
Disconnection of Rack Actuator inner wiring
•
Inner wiring of the rack actuator may be short-circuited with GND.
•
• The E-ECU internal circuitry may be faulty.
1-114
DTCs (Diagnostic Trouble Codes) General Description
engine stop position.
Failure with Rack Actuator (Low Current)
TNV DI Service Manual
Check points
Connector
Harness
Rack actuator
E-ECU