P1212/3: Failure With Rack Actuator (High Current) - Yanmar 3TNV82A Troubleshooting Manual

FAILURE DIAGNOSIS

(2) P1212/3: Failure with Rack Actuator (High Current)

DTC P1213/3
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 above the upper 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 short-circuited with POWER SUPPLY (*NOTE).
•
• The rack actuator may be faulty.
Inner wiring of the rack actuator short-circuited with POWER SUPPLY (*NOTE)
•
*NOTE) If the rack actuator wiring is short-circuited with POWER SUPPLY, the ECU's power supply line fuse
10A might be blown.With this fuse blown, the E-ECU may fail to detect/indicate the error, and to store
the error history.
• The E-ECU internal circuitry may be faulty.
1-116
DTCs (Diagnostic Trouble Codes) General Description
engine stop position.
Failure with Rack Actuator (High Current)
TNV DI Service Manual
Check points
Connector
Harness
Rack actuator
E-ECU