Travel Alarm Does Not Sound Or Does Not Stop Sounding - Komatsu PC200-8M0 Shop Manual

400 Troubleshooting of electrical system (E-mode)
E-23 Travel alarm does not sound or does not stop sounding
E-23 Travel alarm does not sound or does not stop sounding
Failure 1) Alarm does not sound during travel.
q
Related infor- Output to travel alarm can be checked with monitoring function.
mation (Code: 03701 Controller output 2)
Cause
Defective travel alarm
1
(internal defect)
Open circuit in wiring har-
ness
2
(wire breakage or defective
contact of connector)
Ground fault in wiring har-
3 ness
(contact with ground circuit)
Failure 2) Alarm does not stop sounding while machine is stopped.
Related infor-
mation
Cause
Hot short circuit in wiring
1 harness
(contact with 24 V circuit)
Circuit diagram related to travel alarm
PC200, 200LC, 220, 220LC-8M0
Procedure, measuring location, criteria and remarks
1. Turn starting switch to OFF position.
2. Disconnect connector M14 and connect T-adapters to male side.
Between M14 (male) (1) and (2)
1. Turn starting switch to OFF position.
2. Disconnect connectors M14 and C02 and connect T-adapters to each female
side.
Between C02 (female) (107) and M14 (female) (1)
Between C02 (female) (115) and M14 (female) (2)
1. Turn starting switch to OFF position.
2. Disconnect connectors C02 and M14, and connect T-adapters to either female
side.
Between C02 (female) (107) and ground, or between
M14 (female) (1) and ground
Procedure, measuring location, criteria and remarks
1. Turn starting switch to OFF position.
2. Disconnect connector M14 and connect T-adapters to female side.
3. Turn starting switch to ON position.
Between M14 (female) (1) and ground
SEN06138-00
Continuity
Max. 1 z
Resistance
Max. 1 z
Resistance
Resistance Min. 1 Mz
Voltage Max. 3 V
45
40-400