Failure Code [Ca2185] Throt Sens Sup Volt High Error - Komatsu Galeo PC800-8 Shop Manual

SEN00791-02

Failure code [CA2185] Throt Sens Sup Volt High Error

Action code Failure code
E14 CA2185
Contents of
• High voltage error occurred in throttle sensor power supply (5V) circuit.
trouble
Action of
• Use a signal other than throttle sensor to set the throttle position for operations.
controller
Problem that
appears on • Engine speed can not be controlled.
machine
Related • Signal voltage of the fuel control dial can be checked by monitoring function
information (Code No. 03000: voltage of fuel control dial).
Defective fuel control dial
1
(Internal defect)
Disconnection in wiring har-
ness
(Disconnection in wiring or
2
defective contact in con-
nector)
Possible causes
and standard
value in normal
Ground fault in wiring har-
state
ness
3
(Short circuit with GND cir-
cuit)
Short circuit in wiring har-
ness
4
(with another wiring har-
ness)
5 Defective engine controller
38
Throt Sens Sup Volt High Error
Trouble
(Engine controller system)
Cause
aPrepare with starting switch OFF, then turn starting switch ON and
carry out troubleshooting.
Disconnect sensors at
right in order. If no
error code is displayed,
that sensor is defec-
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between CE02 (female) (22) –
P20 (female) (1)
Wiring harness between CE02 (female) (23) –
P20 (female) (3)
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between CE02 (female) (22) –
P20 (female) (1) and chassis ground
Wiring harness between CE02 (female) (23) –
P20 (female) (3) and chassis ground
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between CE02 (female) (22) –
P20 (female) (1) and between CE02
(female) (23) – P20 (female) (3)
aPrepare with starting switch OFF, then turn starting switch ON and
carry out troubleshooting.
Standard value in normal state/Remarks on troubleshooting
Fuel control dial
tive.
CE02
Between (22) – (23)
40 Troubleshooting
P20 connector
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Voltage
4.75 – 5.25 V
PC800, 850-8