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Komatsu HD785-7 Shop Manual page 12

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SEN01276-12
Failure code [CA553] Common rail pressure too high (1) (Left bank):
Excessively high pressure detected ........................................................................................ 41
Failure code [CB553] Common rail pressure too high (1) (Right bank):
Excessively high pressure detected ........................................................................................ 42
Failure code [CA554] In-range error in common rail pressure sensor (Left bank):
In-range error........................................................................................................................... 43
Failure code [CB554] In-range error in common rail pressure sensor (Right bank):
In-range error........................................................................................................................... 43
Failure code [CA559] Loss of pressure feed from supply pump (1) (Left bank):
Loss of pressure feed detected ............................................................................................... 44
Failure code [CB559] Loss of pressure feed from supply pump (1) (Right bank):
Loss of pressure feed detected ............................................................................................... 48
Failure code [CA689] Abnormal engine Ne speed sensor (Left bank): Abnormal signal ............ 52
Failure code [CB689] Abnormal engine Ne speed sensor (Right bank): Abnormal signal.......... 54
Failure code [CA691] Intake air temperature sensor abnormally high level (At left bank only):
High voltage detection ............................................................................................................. 56
Failure code [CA692] Intake air temperature sensor abnormally low level (At left bank only):
Low voltage detection .............................................................................................................. 58
Failure code [CA731] Abnormal engine Bkup speed sensor phase (Left bank):
Abnormal phase....................................................................................................................... 59
Failure code [CB731] Abnormal engine Bkup speed sensor phase (Right bank):
Abnormal phase....................................................................................................................... 59
Troubleshooting by failure code, Part 5
Failure code [CA757] Loss of all engine controller data (Left bank): Loss of all data..................
Failure code [CB757] Loss of all engine controller data (Right bank): Loss of all data ...............
Failure code [CA778] Abnormal engine Bkup speed sensor (Left bank):
Abnormal Bkup signal..............................................................................................................
Failure code [CB778] Engine Bkup speed sensor abnormality (Right bank):
Bkup signal error......................................................................................................................
Failure code [CA781] Inter-multicontroller communication error (Left bank):
Communication error ...............................................................................................................
Failure code [CB781] Inter-multicontroller communication error (Right bank):
Communication error ............................................................................................................... 10
Failure code [CA1257] Multicontroller distinction wiring harness key error (Left bank):
Distinction error........................................................................................................................ 11
Failure code [CB1257] Multicontroller distinction wiring harness key error (Right bank):
Distinction error........................................................................................................................ 12
Failure code [CB1548] Injector #7 (R/B #1) system disconnection/short circuit (Right bank):
Disconnection/Short circuit ...................................................................................................... 14
Failure code [CB1549] Injector #8 (R/B #2) system disconnection/short circuit (Right bank):
Disconnection/Short circuit ...................................................................................................... 16
Failure code [CB1551] Injector #10 (R/B #4) system disconnection/short circuit (Right bank):
Disconnection/Short circuit ...................................................................................................... 18
Failure code [CB1552] Injector #11 (R/B #5) system disconnection/short circuit (Right bank):
Disconnection/Short circuit ...................................................................................................... 20
Failure code [CB1553] Injector #12 (R/B #6) system disconnection/short circuit (Right bank):
Disconnection/Short circuit ...................................................................................................... 22
Failure code [CB1622] Injector #9 (R/B #3) system disconnection/short circuit (Right bank):
Disconnection/Short circuit ...................................................................................................... 24
Failure code [CA1633] KOMNET abnormality (Left bank): Communication error ....................... 26
Failure code [CA2185] Throttle sensor supply voltage high error ............................................... 28
Failure code [CA2186] Throttle sensor power supply low error .................................................. 30
Failure code [CA2249] Loss of pressure feed from supply pump (2) (Left bank):
Loss of pressure feed detected ............................................................................................... 31
Failure code [CB2249] Loss of pressure feed from supply pump (2) (Right bank):
Loss of pressure feed detected ............................................................................................... 31
Failure code [CA2555] Intake heater relay voltage low error (Left bank) .................................... 32
Failure code [CA2556] Intake heater relay voltage high error (Left bank)................................... 34
10
00 Index and foreword
SEN01942-02
3
3
4
6
8
HD785-7

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