Troubleshooting By Failure Code (Display Of Code), Part - Komatsu WA250-6 Shop Manual

WHEEL LOADER
WA250-6
WA250PZ-6
Machine model
WA250-6
WA250PZ-6
40 Troubleshooting
330 Troubleshooting by failure code
(Display of code), Part 3
Failure code [CA428] Abnormally high level in water sensor.......................................................................... 4
Failure code [CA429] Abnormally low level in water sensor ........................................................................... 6
Failure code [CA431] Idle validation switch error............................................................................................ 8
Failure code [CA432] Idle validation action error .......................................................................................... 12
Failure code [CA435] Engine oil pressure switch error ................................................................................. 16
Failure code [CA441] Battery voltage low error ............................................................................................ 17
Failure code [CA442] Battery voltage high error ........................................................................................... 20
Failure code [CA449] Common rail pressure high error 2 ............................................................................ 22
Failure code [CA451] Common rail pressure sensor high error.................................................................... 24
Failure code [CA452] Common rail pressure sensor low error ..................................................................... 26
Failure code [CA488] Derating of torque by abnormally high charge temperature ....................................... 28
Failure code [CA553] Common rail pressure high error 1 ............................................................................ 29
Failure code [CA559] Supply pump pressure very low error ........................................................................ 30
Failure code [CA689] Engine Ne speed sensor error ................................................................................... 32
Failure code [CA731] Engine Bkup speed sensor phase error ..................................................................... 34
Failure code [CA757] All continuous data lost error...................................................................................... 35
Failure code [CA778] Engine Bkup speed sensor error................................................................................ 38
Failure code [CA1633] KOMNET datalink timeout error ............................................................................... 40
Failure code [CA2185] Throttle sensor supply voltage high error ................................................................. 44
Failure code [CA2186] Throttle sensor power supply low error .................................................................... 46
Failure code [CA2249] Supply pump pressure very low error 2 ................................................................... 48
WA250, 250PZ-6
Serial number
75001 and up
75001 and up
SEN03843-00
40
1
40-330