Komatsu ecot3 PC300LC-8 Shop Manual page 8

SEN01985-15
Releasing remaining pressure in hydraulic circuit ....................................................................... 56
Testing oil leakage amount.......................................................................................................... 56
Bleeding air from various parts.................................................................................................... 59
Diode inspection procedures....................................................................................................... 61
Installation and adjustment of mirrors ......................................................................................... 62
Testing and adjusting, Part 2
Special functions of machine monitor..........................................................................................
Testing and adjusting, Part 3
Handling voltage circuit of engine controller................................................................................
Preparation work for troubleshooting of electrical system ...........................................................
Procedure for testing diodes .......................................................................................................
Pm clinic service..........................................................................................................................
40 Troubleshooting
Failure code table and fuse locations
Failure codes table ......................................................................................................................
Fuse locations .............................................................................................................................
General Information on troubleshooting
Points to remember when troubleshooting ..................................................................................
Sequence of events in troubleshooting .......................................................................................
Checks before troubleshooting....................................................................................................
Classification and troubleshooting steps .....................................................................................
Information in troubleshooting table ............................................................................................
Possible problems and troubleshooting No.................................................................................
Connection table for connector pin numbers............................................................................... 11
T- branch box and T- branch adapter table ................................................................................. 47
Troubleshooting by failure code (Display of code), Part 1
Failure code [989L00] Engine Controller Lock Caution 1............................................................
Failure code [989M00] Engine Controller Lock Caution 2...........................................................
Failure code [989N00] Engine Controller Lock Caution 3 ...........................................................
Failure code [AA10NX] Air cleaner Clogging ..............................................................................
Failure code [AB00KE] Charge Voltage Low...............................................................................
Failure code [B@BAZG] Eng Oil Press. Low .............................................................................. 10
Failure code [B@BAZK] Eng Oil Level Low ................................................................................ 12
Failure code [B@BCNS] Eng. Water Overheat ........................................................................... 14
Failure code [B@BCZK] Eng Water Level Low ........................................................................... 16
Failure code [B@HANS] Hydr Oil Overheat................................................................................ 18
Failure code [CA111] EMC Critical Internal Failure ..................................................................... 19
Failure code [CA115] Eng Ne and Bkup Speed Sens Error ........................................................ 19
Failure code [CA122] Chg Air Press Sensor High Error.............................................................. 20
Failure code [CA123] Chg Air Press Sensor Low Error .............................................................. 22
Failure code [CA131] Throttle Sensor High Error........................................................................ 24
Failure code [CA132] Throttle Sensor Low Error ........................................................................ 26
Failure code [CA144] Coolant Temp Sens High Error................................................................. 28
Failure code [CA145] Coolant Temp Sens Low Error.................................................................. 30
Failure code [CA153] Chg Air Temp Sensor High Error .............................................................. 32
Failure code [CA154] Chg Air Temp Sensor Low Error............................................................... 34
Failure code [CA155] Chg Air Temp High Speed Derate ............................................................ 36
Failure code [CA187] Sens Supply 2 Volt Low Error................................................................... 38
Failure code [CA221] Ambient Press Sens High Error................................................................ 40
Failure code [CA222] Ambient Press Sens Low Error ................................................................ 42
Failure code [CA227] Sens Supply 2 Volt High Error .................................................................. 44
Failure code [CA234] Eng Overspeed......................................................................................... 45
Failure code [CA238] Ne Speed Sens Supply Volt Error............................................................. 46
Failure code [CA271] IMV/PCV1 Short Error .............................................................................. 47
Failure code [CA272] IMV/PCV1 Open Error .............................................................................. 48
Failure code [CA281] Pump Press Balance Error ....................................................................... 50
6
00 Index and foreword
SEN02626-04
2
SEN02663-02
2
3
7
8
SEN02627-04
2
5
SEN02628-04
2
3
4
5
6
8
SEN02629-03
3
3
4
6
8
PC300, 350-8