Komtrax System Does Not Operate Normally - Komatsu Galeo PC800-8 Shop Manual

SEN00793-02
E-28 KOMTRAX system does not operate normally
Failure

• KOMTRAX system does not operate normally.

phenomenon
• If KOMTRAX system administrator makes request for checking system on machine side for trouble,
Related
carry out following troubleshooting.
information
• Even if KOMTRAX system has trouble, it does not particularly appear on machine.
1 Defective power supply
Defective starting switch
2 ACC signal and alternator
R signal
Possible causes
and standard
Defective starting switch C
3
value in normal
signal
state
4 State of CAN connection
Number of mails not trans-
5
mitted yet
State of positioning with
6
GPS
58
Cause Standard value in normal state/Remarks on troubleshooting
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
(39), (40) –
Between (37) – (38)
aStart engine and carry out troubleshooting.
aPrepare with starting switch OFF, then start engine and carry out trou-
bleshooting.
Between (36) –
Between (28) –
aPrepare with starting switch OFF, then turn starting switch ON and
carry out troubleshooting.
Between (27) –
aTurn starting switch ON and carry out troubleshooting.
aPrepare with starting switch OFF and carry out troubleshooting.
CK01 (female)
Between (7) – (8)
aTurn starting switch ON and carry out troubleshooting.
aTurn starting switch ON and carry out troubleshooting
In an outdoor location within radio waves' penetration range, it some-
times takes more than a minute from turning on of the starting switch to
completion of the positioning.
CK01 Signal
Constant
power supply
LED (1)
LED-C1
CK01 Signal
Starting switch ACC
(37), (38)
Alternator R
(37), (38)
CK01 Signal
Starting switch ACC
(37), (38)
Starting switch C
LED (4)
LED-C4
Signal
LED (7)
7-segment
LED (8)
Dot
40 Troubleshooting
Voltage
20 – 30 V
Normal state
ON
Voltage
20 – 30 V
20 – 30 V
Voltage
Max. 1 V
20 – 30 V
Normal state
ON
Resistance
40 – 80 z
CAN
Normal state
0 – 9
Normal state
ON
PC800, 850-8