s1221 F11 (P1219) - ECU-ECU Software Monitoring fault
Control Module: ECU
NOTE: If replacement of the Engine Control Unit (ECU) A-009 occurs, use the Electronic Service Tool (EST) to apply
the replacement issue to the ECU, ECU Replacement, before you return the machine to service.
Context:
The ECU A-009 employs programmed data and software verification processes to assure accurate internal data ma-
nipulation and operation processes. If the ECU A-009 senses an issue with the software function, this fault will occur.
Software re-flash or replacement of the ECU A-009 may be necessary to resolve this fault.
s1221 F11 (P061B) - ECU-Zero Torque Monitoring fault
Control Module: ECU
NOTE: If replacement of the Engine Control Unit (ECU) A-009 occurs, use the Electronic Service Tool (EST) to apply
the replacement issue to the ECU, ECU Replacement, before you return the machine to service.
Context:
The ECU A-009 contains map software (look-up tables) which are used to compare actual engine conditions to ex-
pected or ideal conditions, known as stoichiometric. If the ECU A-009 senses bad torque comparisons, this fault will
occur. Because of this fault, Diesel Particulate Filter (DPF) regeneration stops and/or a reduction in engine torque is
possible. Software re-flash or replacement of the ECU A-009 may be necessary to resolve this fault.