Failure Code [Ca352] Sens Supply 1 Volt Low Error - Komatsu PC210-8 Shop Manual

UEN00241-01

Failure code [CA352] Sens Supply 1 Volt Low Error

User code Failure code
E15
Contents of
• Low voltage was detected in sensor power supply 1 circuit.
trouble
Action of
• Fixes ambient pressure value and continues operation.
controller
Problem that
• Engine does not start easily.
appears on
• Engine output lowers.
machine
Related infor-
• Method of reproducing failure code: Turn starting switch ON.
mation
Defective sensor or wiring
1
harness
Possible causes
and standard
value in normal
state
Defective wiring harness
2
connector
3 Defective engine controller
6
Trouble
CA352
Cause
Sensor power supply 1 voltage low error
(Engine controller system)
Standard value in normal state/Remarks on troubleshooting
a Disconnect connector with starting switch OFF, then turn starting
switch ON and carry out troubleshooting.
Disconnect sensor
and wiring harness at
Ambient pressure
right in order and
sensor
carry out operation to
reproduce trouble. If
"E" of failure code
goes off when sensor
or wiring harness is
Engine wiring har-
disconnected, that
ness
sensor or wiring har-
ness is defective.
Connecting parts between ambient pressure sensor – engine wiring
harness – engine controller may be defective. Check them directly.
• Looseness of connector, breakage of lock, or breakage of seal
• Corrosion, bend, breakage, push-in, or expansion of pin
• Moisture or dirt in connector or defective insulation
If causes 1 – 2 are not detected, engine controller may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)
40 Troubleshooting
1
AMBAIR PRESURE
CE01
PC210, 230, 240-8