P1227/8: Failure With Spare Accelerator Sensor (Pulse Communication) - Yanmar 3TNV82A Troubleshooting Manual

FAILURE DIAGNOSIS

(6) P1227/8: Failure with Spare Accelerator Sensor (Pulse Communication)

DTC P1227/8
* This DTC is output when a pulse accelerator is used.
DTC Detecting Conditions
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator
1. Key switch ON.
2. No pulse accelerator signal input
3. One flash followed by eight flashes
Movement at Error occurrence
Error Mode [Run As Is]:
After detecting the error, the system lets
the engine continue to run without any
restrictions.
Run restricted? No.
Recovery Yes: The error is automatically reset
Conditions
Remarks
Estimation of Failure cause/Error condition
• Wiring defect of the harness
The pulse accelerator's signal wires may be disconnected or short-circuited with GND.
•
• Source circuitry fault of the pulse accelerator signal
• The E-ECU internal circuitry may be faulty.
1-32
DTCs (Diagnostic Trouble Codes) General Description
CAN communication error detection
Unavailable
when a normal data is received.
Failure with Spare Accelerator Sensor (Pulse
Communication)
Harness
[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
speed".
Yes: The error is automatically reset
when a normal data is received.
TNV DI Service Manual
Check points
Available
-1
])" or "pre-error target