P2229/3: Failure With Atmospheric Pressure Sensor (High Voltage) - Yanmar 3TNV82A Troubleshooting Manual

FAILURE DIAGNOSIS

(2) P2229/3: Failure with Atmospheric Pressure Sensor (High Voltage)

DTC P2229/3
DTC Detecting Conditions
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator
1. Key switch ON.
2. Sensor voltage 4.8 [V] or higher.
3. One flash followed by nine flashes.
Movement at Error occurrence
Error Mode [Run Under Restrictions]:
The engine continues to run with the atmospheric pressure unchanged from the pre-
error value.
Run restricted? Yes: The altitude compensation function is disabled.
Recovery No.
Conditions
Remarks
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
The SENSOR GND wire may be disconnected.
•
The sensor signal wire may be short-circuited with POWER SUPPLY.
•
• The atmospheric pressure sensor may be faulty.
Sensor output defect by a short circuit with power supply of the atmospheric pressure sensor inner wiring
•
• The E-ECU internal circuitry may be faulty.
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DTCs (Diagnostic Trouble Codes) General Description
Failure with Atmospheric Pressure Sensor (High Voltage)
Check points
Harness
Atmospheric pressure sensor
TNV DI Service Manual