Failure Code [Dha4Ka] Air Cleaner Clog Sensor Open Circuit - Komatsu PC200-8M0 Shop Manual

SEN06135-00

Failure code [DHA4KA] Air Cleaner Clog Sensor Open Circuit

Action
Failure code
level
L01 DHA4KA
q
Air cleaner clogging switch signal voltage is not below 1 V while engine is running, so machine mon-
Detail of failure
itor determines that air cleaner is clogged (switch contact is open).
Action of con-
q Displays air cleaner clogging monitor in red on machine monitor.
troller
Problem on
q
If machine is used as it is, engine may be broken.
machine
q
Input signal status (ON/OFF) from air cleaner clogging switch can be checked by using monitoring
Related infor-
function (Code: 04501 Monitor input: 2).
mation
q
Method of reproducing failure code: Turn starting switch to ON position.
Cause
Open circuit in air cleaner clogging
1
sensor
42
40-303
Failure code [DHA4KA] Air Cleaner Clog Sensor Open Circuit
Air cleaner clogging sensor open circuit
Failure
(Machine monitor system)
Procedure, measuring location, criteria and remarks
Perform troubleshooting for failure code [AA10NX].
303 Troubleshooting by failure code, Part 3
PC200, 200LC, 220, 220LC-8M0