P1225/1: Spare Accelerator Sensor Error (Foot Pedal-Close Position) - Yanmar 3TNV82A Troubleshooting Manual

FAILURE DIAGNOSIS

(4) P1225/1: Spare Accelerator Sensor Error (foot pedal-close position)

DTC P1225/1
DTC Detecting Conditions
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator
1. Key switch ON.
2. With sensor voltage at or below 0.65[V], foot pedal Normally
Open switch detected being ON or foot pedal Normally Closed
Switch detected being OFF.
3. One flash followed by eight flashes
Movement at Error occurrence
Error Mode [Run As Is]:
The engine continues to run using the
main accelerator sensor.
Run restricted? No.
Recovery No.
Conditions
Remarks
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
The wiring for the foot pedal Normally Closed switch may be disconnected.
•
The wiring for the foot pedal Normally Open switch may be short-circuited with GND.
•
• The foot pedal may be faulty.
The inner wiring may be disconnected or short-circuited with GND.
•
• The E-ECU internal circuitry may be faulty.
1-28
DTCs (Diagnostic Trouble Codes) General Description
Spare Accelerator Sensor Error (foot pedal-close
position)
Error detection of main accelerator sensor
Unavailable
Check points
Harness
Foot pedal
Available
[Run Under Restrictions]:
The engine runs at a constant rotational
speed.
Yes: The target speed is set to the "on-
error target speed (standard value:
1500[min -1 ])" or "pre-error target
speed".
No.
TNV DI Service Manual