Komatsu Galeo PC138US-8 Shop Manual page 8

SEN01977-02
Checking cab tipping stopper ...................................................................................................... 52
Adjusting mirrors ......................................................................................................................... 52
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 code table........................................................................................................................
Fuse locations .............................................................................................................................
General information on troubleshooting
Points to remember when troubleshooting..................................................................................
Sequence of events in troubleshooting .......................................................................................
Checks before troubleshooting....................................................................................................
Classification and procedures for troubleshooting ......................................................................
Information in troubleshooting table ............................................................................................
Phenomena looking like troubles and troubleshooting Nos. .......................................................
Wiring table for connector pin numbers....................................................................................... 11
T-adapter box and T-adapter table .............................................................................................. 44
Troubleshooting by failure 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 [AB00KE] Charge voltage low ................................................................................
Failure code [B@BAZG] Eng oil press. low.................................................................................
Failure code [B@BAZK] Eng oil level low ...................................................................................
Failure code [B@BCNS] Eng coolant overheat...........................................................................
Failure code [B@HANS] Hydr oil overheat .................................................................................
Failure code [CA111] ECM critical internal failure ....................................................................... 10
Failure code [CA115] Eng. Ne and Bkup speed sensor error ..................................................... 13
Failure code [CA122] Charge air press sensor high error........................................................... 14
Failure code [CA123] Charge air press sensor low error ............................................................ 16
Failure code [CA131] Throttle sensor high error ......................................................................... 18
Failure code [CA132] Throttle sensor low error........................................................................... 20
Failure code [CA144] Coolant temp. sensor high error ............................................................... 21
Failure code [CA145] Coolant temp. sensor low error ................................................................ 22
Failure code [CA153] Charge air temp. sensor high error........................................................... 23
Failure code [CA154] Charge air temp. sensor low error ............................................................ 24
Failure code [CA187] Sensor sup. 2 volt. low error..................................................................... 24
Failure code [CA221] Ambient air press. sensor high error ........................................................ 26
Failure code [CA222] Ambient air press. sensor low error.......................................................... 28
Failure code [CA227] Sensor sup. 2 volt. high error ................................................................... 30
Failure code [CA234] Eng. overspeed ........................................................................................ 32
Failure code [CA238] Ne speed sensor sup. volt. error .............................................................. 34
Failure code [CA271] IMV/PCV1 short error ............................................................................... 36
Failure code [CA272] IMV/PCV1 open error ............................................................................... 37
Failure code [CA322] Injector #1 (L #1) system open/short error ............................................... 38
Failure code [CA324] Injector #3 (L/B #3) system open/short error ............................................ 40
Failure code [CA331] Injector #2 (L/B #2) system open/short error ............................................ 42
Failure code [CA332] Injector #4 (L/B #4) system open/short error ............................................ 44
Troubleshooting by failure code, Part 2
Failure code [CA351] Inj. drive circuit error .................................................................................
6
00 Index and foreword
SEN02459-00
2
SEN02460-01
2
3
8
9
SEN02461-01
2
6
SEN02462-00
2
3
4
5
6
8
SEN02463-01
3
3
4
6
8
8
9
9
SEN02464-01
3
PC138US, USLC-8