Komatsu D155AX-6 — TABLE OF CONTENTS

00 Index and foreword SEN00598-02 Failure code [D190KA] ACC signal relay: Disconnection ........................................................ 50 Failure code [D190KB] ACC signal relay: Short circuit............................................................ 52 Failure code [D5ZKKX] Throttle Dial: Out of normal range ..................................................... 54 Failure code [DAFRKR] CAN Disconnection (Monitor) ........................................................... 56 Failure code [DB2RKR] CAN Disconnection (Engine controller)............................................. 58 Failure code [DB90KK] WE controller:

Source voltage reduction............................................ 60 Failure code [DB90KR] PT controller: Can communication lost .............................................. 62 Troubleshooting by failure and error codes, Part 4 SEN00719-01 Troubleshooting by failure and error codes, Part 4 ..................................................................... 3 Failure code [DB90KT] WE controller: Abnormality in controller............................................. 3 Failure code [DB95KK] WE controller: Source voltage reduction............................................ 4 Failure code [DB97KK] WE controller: Source voltage reduction............................................

6 Failure code [DB99KQ] WE controller: Type select signal ...................................................... 8 Failure code [DB9RKR] WE controller: Can communication lost ............................................ 10 Failure code [DBE0KK] PT controller: Source voltage reduction............................................. 12 Failure code [DBE0KT] PT controller: Abnormality in controller.............................................. 14 Failure code [DBE6KK] PT controller: Source voltage reduction............................................. 16 Failure code [DBE7KK] PT controller: Source voltage reduction.............................................

18 Failure code [DBE9KQ] PT controller: Type select signal ....................................................... 20 Failure code [DD12KA] Shift up Sw: Disconnection ................................................................ 22 Failure code [DD12KB] Shift up Sw: Short circuit.................................................................... 24 Failure code [DD13KA] Shift down Sw: Disconnection ........................................................... 26 Failure code [DD13KB] Shift down Sw: Short circuit ............................................................... 28 Failure code [DD14KA] Parking lever Sw: Disconnection .......................................................

30 Failure code [DD14KB] Parking lever Sw: Short circuit........................................................... 32 Failure code [DDDDKA] Back up brake Sw: Disconnection.................................................... 34 Failure code [DDDDKB] Back up brake Sw: Short circuit........................................................ 36 Failure code [DDDDKX] Back up brake Sw: Signal mismatch ................................................ 38 Failure code [DDN7KA] WEQ Knob Sw (down): Disconnection.............................................. 40 Failure code [DDN7KB] WEQ Knob Sw (down): Short circuit .................................................

42 Failure code [DDN9KA] WEQ Knob Sw (up): Disconnection .................................................. 44 Failure code [DDN9KB] WEQ Knob Sw (up): Short circuit...................................................... 46 Failure code [DDNLKA] Weq lock Sw: Disconnection............................................................. 48 Failure code [DDNLKB] Weq lock Sw: Short circuit................................................................. 50 Failure code [DDTSL1] S/C: Fill high....................................................................................... 52 Failure code [DDTSLH] S/C:

Fill low ....................................................................................... 54 Troubleshooting by failure and error codes, Part 5 SEN00720-01 Troubleshooting by failure and error codes, Part 5 ..................................................................... 3 Failure code [DFA4KX] BL lever 1: Out of normal range......................................................... 3 Failure code [DFA4KZ] BL lever: Disconnection or short circuit.............................................. 3 Failure code [DFA4L8] BL lever: Signal mismatch .................................................................. 4 Failure code [DFA5KA] BL lever 1:

Disconnection .................................................................. 6 Failure code [DFA5KB] BL lever 1: Short circuit ..................................................................... 8 Failure code [DFA6KA] BL lever 2: Disconnection .................................................................. 10 Failure code [DFA6KB] BL lever 2: Short circuit...................................................................... 12 Failure code [DFA7KX] BT lever 1: Out of normal range......................................................... 14 Failure code [DFA7KZ] BT lever: Disconnection or short circuit.............................................. 14 Failure code [DFA7L8] BT lever:

Signal mismatch.................................................................. 15 Failure code [DFA8KA] BT lever 1: Disconnection.................................................................. 16 Failure code [DFA8KB] BT lever 1: Short circuit...................................................................... 18 Failure code [DFA9KA] BT lever 2: Disconnection.................................................................. 20 Failure code [DFA9KB] BT lever 2: Short circuit...................................................................... 22 Failure code [DFAAKX] RL lever 1: Out of normal range ........................................................

24 Failure code [DFAAKZ] RL lever: Disconnection or short circuit ............................................. 24 Failure code [DFAAL8] RL lever: Signal mismatch.................................................................. 25 Failure code [DFABKA] RL lever 1: Disconnection.................................................................. 26 Failure code [DFABKB] RL lever 1: Short circuit ..................................................................... 28 D155AX-6 9