MULTIQUIP MAYCO LS300G, Руководство по эксплуатации

Страница: 81 / 90

MAYCO LS300G CONCRETE PUMP • OPERATION MANUAL — REV. #2 (09/09/19) — PAGE 81
DIAGNOSTICS
How to Manage and Retrieve Fault Codes
The Engine Control Module (ECM) uses fault codes to
identify and report control system faults. The ECM has two
ways of reporting fault codes to the service technician. Each
method uses a unique fault code format.
Each fault has a unique set of codes and an associated
diagnostic procedure. Each fault and its associated codes
are listed in the Fault Code List following this section.
If an engine fault is displayed while the engine is running,
the operator is advised to shut down the engine and have
the engine serviced as soon as possible. Continuing to
operate the engine with a fault condition may lead to engine
and/or catalyst damage.
The ECM will automatically clear a fault code from
its memory if the engine completes 2 consecutive
start-run-stop cycles without the fault recurring.
Table 9. Fault Code Reporting
# Device Code Format
1 J1939 CAN (Digital Control Panel Display) SPN & FMI Codes
2 PC Service Tool DTC Codes
J1939 CAN Link
The ECM also reports faults over the J1939 CAN link. If the
engine is equipped with a CAN monitor or the technician
has access to a handheld CAN reader, the technician can
retrieve the fault codes from the CAN link.
The J1939 CAN standard uniquely defines each fault using
a Suspect Parameter Number (SPN) and Failure Mode
Indicator (FMI).
PC Service Tool
The “SparroWatch” PC service tool (P/N 202169) reports
a unique Diagnostic Trouble Code (DTC) and a text fault
message for each fault.
The PC service tool also displays the values read from
each sensor both in terms of the signal voltage/frequency
and the engineering units (kPA, degrees C, etc.) which is
very helpful for diagnosing signal faults.
The PC service tool also allows the service technician to
clear the fault codes.
TROUBLESHOOTING (DIAGNOSTICS)