P0222/4: Failure With Spare Accelerator Sensor (Low Voltage) - Yanmar 3TNV82A Troubleshooting Manual

FAILURE DIAGNOSIS
Spare accelerator sensor (option)

(1) P0222/4: Failure with Spare Accelerator Sensor (Low Voltage)

DTC P0222/4
DTC Detecting Conditions
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator
1. Key switch ON.
2. Sensor voltage 0.2 [V] or lower.
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 Yes: This error will be automatically reset
Conditions
Remarks
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
The spare accelerator sensor's signal wires may be disconnected or short-circuited with GND.
•
The SENSOR 5V wire may be disconnected or short-circuited with GND.
•
The SENSOR GND wire may be short-circuited with POWER SUPPLY (*NOTE).
•
*NOTE) If the SENSOR GND wire is short-circuited with POWER SUPPLY, the E-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 spare accelerator sensor may be faulty.
Sensor output defect by a disconnection of the spare accelerator sensor inner wiring or a sliding
•
resistance increase
• The E-ECU internal circuitry may be faulty.
1-22
DTCs (Diagnostic Trouble Codes) General Description
Error detection of main accelerator sensor
Unavailable
when a normal voltage (0.2 to
4.6[V]) is input.
Failure with Spare Accelerator Sensor (Low Voltage)
Harness
Spare accelerator sensor
[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: This error will be automatically reset
when a normal voltage (0.2 to
4.6[V]) is input.
TNV DI Service Manual
Check points
Available
-1
])" or "pre-error target