SEN04119-01 40 Troubleshooting
22 PC130-8
Failure code [CA123] Charge air press sensor low error 1
User code Failure code
Trouble
Charge air press sensor low error
(Engine controller system)
E11 CA123
Contents of
trouble
• Low voltage was detected in charge (boost) pressure sensor circuit.
Action of
controller
• Fixes charge pressure (400 kPa {4.08 kg/cm
2
}) and continues operation.
Problem that
appears on
machine
• Acceleration performance of engine drops.
Related
information
• Signal voltage of charge (boost) pressure sensor can be checked with monitoring function.
(Code: 36501 Boost pressure sensor voltage).
• Method of reproducing failure code: Turn starting switch ON.
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
Carry out troubleshooting for failure code [CA122].
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