SEN03842-00
Failure code [CA227] Sensor power supply 2 high error
Action code
Failure code
E03
Contents of
• High voltage is detected in sensor power supply 2 circuit.
trouble
• Fixes boost pressure and continues operation.
Action of
• Fixes charge temperature and continues operation.
controller
• Limits output and continues operation.
• Turns the centralized warning lamp and alarm buzzer ON.
Problem that
appears on
• Engine output drops.
machine
Related
• Method of reproducing failure code: Turn the starting switch ON.
information
Possible causes
Defective wiring harness
and standard
1
connector
value in normal
state
2 Defective engine controller
Related circuit diagram
30
40-320
Trouble
CA227
Causes
320 Troubleshooting by failure code (Display of code), Part 2
Failure code [CA227] Sensor power supply 2 high error
Sensor power supply 2 high error
(Engine controller system)
Standard value in normal state/Remarks on troubleshooting
Connecting parts among each sensor, engine wiring harness, and
engine controller are suspected. Inspect them directly.
• Loose connector, broken lock, broken seal
• Corrosive, bent, broken, forced-in, or extended pin
• Humidity in connector, entry of dirt or dust, poor insulation
If cause 1 is not detected, engine controller may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)
1
WA250, 250PZ-6