Komatsu 80001 Shop Manual page 7

SEN03765-03
Installation and adjustment of mirrors and camera ..................................................................... 55
Inspection of air conditioner Recirc/Fresh air filter ...................................................................... 59
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. .......................................................
Connection table for connector pin numbers............................................................................... 11
T- branch box and T- branch adapter table ................................................................................. 47
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 [AA10NX] Air cleaner clogging ...............................................................................
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........................................................................... 10
Failure code [B@BCZK] Eng water level low .............................................................................. 12
Failure code [B@HANS] Hydr oil overheat ................................................................................. 14
Failure code [CA111] ECM critical internal failure ....................................................................... 16
Failure code [CA115] Eng Ne and Bkup speed sensor error ...................................................... 19
Failure code [CA122] Charge air press sensor high error........................................................... 20
Failure code [CA123] Charge 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. sensor high error ............................................................... 28
Failure code [CA145] Coolant temp. sensor low error ................................................................ 30
Failure code [CA153] Charge air temp. sensor high error........................................................... 32
Failure code [CA154] Charge air temp. sensor low error ............................................................ 34
Failure code [CA155] Chg air temp high speed derate ............................................................... 34
Failure code [CA187] Sensor sup. 2 volt. low error..................................................................... 35
Failure code [CA221] Ambient air press. sensor high error ........................................................ 36
Failure code [CA222] Ambient air press. sensor low error.......................................................... 38
Failure code [CA227] Sensor sup. 2 volt. high error ................................................................... 39
Failure code [CA234] Eng. overspeed ........................................................................................ 40
Failure code [CA238] Ne speed sensor sup. volt. error .............................................................. 42
Failure code [CA271] IMV/PCV1 short error ............................................................................... 44
Failure code [CA272] IMV/PCV1 open error ............................................................................... 45
Failure code [CA322] Injector #1 (L #1) system open/short error ............................................... 46
Failure code [CA324] Injector #3 (L #3) system open/short error ............................................... 48
Failure code [CA331] Injector #2 (L #2) system open/short error ............................................... 50
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00 Index and foreword
SEN04115-01
2
SEN04116-00
2
3
8
9
SEN04117-01
2
6
SEN04118-01
2
3
4
5
6
8
SEN04119-00
3
3
4
5
6
8
9
PC130-8