Komatsu ecot3 WA500-6 Shop Manual page 11

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00 Index and foreword
Failure code [CA1228] EGR valve servo error 1 ..................................................................... 58
Failure code [CA1625] EGR valve servo error 2 ..................................................................... 59
Failure code [CA1626] Bypass valve solenoid current high error............................................ 60
Failure code [CA1627] Bypass valve solenoid current low error ............................................. 62
Failure code [CA1628] Bypass Valve Servo Error 1 ................................................................ 64
Failure code [CA1629] Bypass Valve Servo Error 2 ................................................................ 65
Failure code [CA1631] Bypass valve lift sensor high error ...................................................... 66
Failure code [CA1632] Bypass valve lift sensor low error ....................................................... 68
Failure code [CA1633] KOMNET datalink timeout error.......................................................... 70
Failure code [CA1642] Abnormally low signal in EGR inlet pressure sensor .......................... 72
Failure code [CA1653] Abnormally high signal in EGR inlet pressure sensor......................... 74
Troubleshooting by failure code (Display of code), Part 4
Failure code [CA2185] Throttle sensor supply voltage high error ...........................................
Failure code [CA2186] Throttle sensor power supply low error...............................................
Failure code [CA2249] Supply pump pressure very low error 2 ..............................................
Failure code [CA2271] EGR valve lift sensor high error .......................................................... 10
Failure code [CA2272] EGR valve lift sensor low error ........................................................... 12
Failure code [CA2351] EGR valve solenoid operation short circuit......................................... 14
Failure code [CA2352] EGR valve solenoid operation disconnect .......................................... 16
Failure code [CA2555] Intake air heater relay open circuit error ............................................. 18
Failure code [CA2556] Intake air heater relay short circuit error ............................................. 20
Failure code [D160KZ] Backup lamp relay: Disconnection or short circuit .............................. 22
Failure code [D191KA] Joystick steering neutral safety relay: Disconnection......................... 24
Failure code [D191KB] Joystick steering neutral safety relay: Short circuit ............................ 26
Failure code [D192KA] ECSS solenoid: Disconnection........................................................... 28
Failure code [D192KB] ECSS solenoid: Short circuit .............................................................. 29
Failure code [D192KY] ECSS solenoid: Short circuit with power supply line .......................... 30
Failure code [D193KA] Joystick steering solenoid cut relay: Disconnection ........................... 32
Failure code [D193KB] Joystick steering solenoid cut relay: Short circuit............................... 34
Failure code [D193KY] Joystick steering solenoid cut relay: Short circuit with power supply line
............................................................................................................................................
Failure code [D5ZHKA] Terminal C signal: Disconnection ...................................................... 38
Failure code [D5ZHKB] Terminal C signal: Short circuit .......................................................... 42
Failure code [D5ZHKZ] Terminal C signal: Disconnection or short circuit ............................... 44
Failure code [D5ZHL6] Terminal C signal: Signal does not match engine running or stopped state
............................................................................................................................................
Failure code [DA80L4] Auto grease controller: ON/OFF signals disagree .............................. 49
Failure code [DAF3KK] Machine monitor: Low source voltage (input) .................................... 52
Failure code [DAF5KP] Machine monitor: Low output voltage ................................................ 54
Failure code [DAFRKR] CAN communication with machine monitor: Communication error (Abnor-
mality in target component system).................................................................................. 56
Failure code [DAQ0KK] Transmission controller: Low source voltage .................................... 57
Failure code [DAQ0KT] Transmission controller: Abnormality in controller............................. 60
Failure code [DAQ2KK] Transmission controller load power supply line:
Low source voltage (input).................................................................................................
Failure code [DAQ9KQ] Transmission controller model selection:
Disagreement of model selection signals......................................................................... 64
Troubleshooting by failure code (Display of code), Part 5
Failure code [DAQRKR] CAN communication with transmission controller:
Communication error (Abnormality in target component system) ....................................
Failure code [DAQRMA] Transmission controller option setting: Malfunction .........................
Failure code [DB2RKR] CAN communication from engine controller: Communication error (Abnor-
mality in target component system)..................................................................................
Failure code [DB90KK] Work equipment controller: Low source voltage (input) ..................... 16
Failure code [DB90KT] Work equipment controller: Abnormality in controller......................... 19
Failure code [DB92KK] Work equipment controller load power supply line: Low source voltage
(input) ............................................................................................................................... 20
WA500-6
SEN00701-19
SEN00733-04
4
6
8
36
46
61
SEN00734-03
4
9
11
9

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