Failure Display Number Of Self-Diagnostic Function; Self - Diagnosis Of Controller, Items And Methods - Kubota KX91-3a Workshop Manual

WSM Minor Change

3-3 Failure Display Number of Self-diagnostic Function

Check item
2 Check sum CPU ROM
Glow relay output
Input & output RS-485 (negative) (positive) flash
TXD, RXD input
3
Glow relay output
Input & output RS-485 (negative) (positive) flash
TXD, RXD input
Auto release relay output, lever
Input & output
lock switch input
4
Auto release relay output, lever
Input & output
lock switch input
Working lamp relay output, start
Input & output
switch input
5
Working lamp relay output, start
Input & output
switch input
Compressor clutch relay output,
Input & output
engine rpm input
6
Compressor clutch relay output,
Input & output
engine rpm input
Input & output AUX LED output, charge input
7
Input & output AUX LED output, charge input
Input & output AI LED output, oil input
8
Input & output AI LED output, oil input
Travel sol output, aircon switch
Input & output
input
9
Travel sol output, aircon switch
Input & output
input
Table 2. Self - diagnosis of controller, items and methods
Check parts
II Service Engineering Section
Check methods
Implement self-checksum.
Turn OFF the glow relay and make sure that pin 29
(RXD2 power 7.1) is set to low level.
Turn OFF the glow relay and make sure that flash
RXD TXD input is set to high level.
Turn ON the glow relay and make sure that pin 29
(RXD2 port 7.1) is set to low level.
Turn ON the glow relay and make sure that the
flash RXD TXD input is set to low level.
Turn OFF the auto release relay and make sure
that the lever lock switch is set to high level.
Turn ON the auto release relay and make sure that
the lever lock switch is set to low level.
Turn OFF the working lamp relay and make sure
that the start switch is set to high level.
Turn ON the working lamp relay and make sure
that the start switch is set to low level.
Turn OFF the compressor clutch relay and make
sure that the engine rpm is set to low level.
Set the compressor clutch relay to high level and
make sure that the engine rpm is set to high level.
Turn OFF the AUX LED and make sure that the
aircon switch is set to high level.
Turn ON the AUX LED and make sure that the air-
con switch is set to low level.
Turn OFF the AI LED and make sure that the oil is
set to low level.
Turn ON the AI LED and make sure that the oil is
set to low high level.
Turn OFF the travel sol and make sure that the
charge is set to low level.
Turn ON the travel sol and make sure that the
charge is set to high level.
II-174
Fail
indication
No.
0
1
2
3
4
5
6
7