Tiffin Motorhomes PowerGlide 2019, Руководство пользователя

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C U M M I N S E N G I N E S
4-16
Diagnostic Fault Codes
The engine control (ECM) monitors the engine sensors and parameters while the engine is in operation.
The ECM can detect certain conditions that are outside of the normal operating parameters. The ECM
will log diagnostic fault information, and illuminate the check engine light, stop engine light, or the
malfunction indicator light to inform the operator of a problem. It will also log diagnostic fault
information in the form of numeric codes to assist a technician in troubleshooting the concern.
Diagnostic fault codes fall into two categories; active faults, and historic faults. Active faults indicate the
condition causing the fault is still present. Historic faults indicate the condition causing the fault is no
longer present, but remain in the ECM memory to assist the technician when diagnosing the concern.
Active fault codes can be retrieved by the operator using the dash instrumentation. This can be helpful in
determining if the condition is serious, and needs immediate attention, or if it is safe to continue
operating the engine until it is convenient for the operator to have the service work performed.
Retrieve active fault codes using the following steps:
Refer to page 29 in the Instrumentation section of this manual, follow the illustration and
navigate to the OBD section and retrieve the information listed below.
The desired screen should will look like:
Two pieces of information will be displayed
a.
SPN followed by a 3 or 4 digit number
b.
FMI followed by a 1 or 2 digit number
Provide these two pieces of information to a Tiffin phone tech, or the nearest Cummins authorized repair
location for guidance on how you should proceed.
Towing
The Allegro Bus is capable of towing typical motor vehicles or trailers up to 15,000 lbs. The motor home is
equipped with a 15,000-pound towing hitch, and associated wiring connector. The total weight of the motor
home and any vehicle towed must not exceed the Gross Combined Weight Rating (GCWR). When the motor
home is weighed, remember to account for passengers and their locations in the motor home. Any vehicles or
trailers to be towed by the motor home should have adequate active braking.