Troubleshooting With A Diagnostic Code; Flash Codes; Diagnostic Codes - Perkins M190C Troubleshooting Manual

KENR9126
Troubleshooting with a
Diagnostic Code

Flash Codes

Flash codes are a simple way to alert the operator
that a problem exists with the control system of the
engine. Flash codes are a simple way to alert the
operator that a problem exists with the operation of
the engine. Each flash code is a three-digit number.
The diagnostic lamp flashes in order to identify the
flash code.
EXAMPLE
Note: Flash Code 271 would flash on the diagnostic
lamp in the following manner:
•
Two short flashes
• Hesitation
• Seven short flashes
•
Hesitation
• One short flash
For the descriptions of the flash codes, refer to
Troubleshooting, "Diagnostic Code Cross Reference".

Diagnostic Codes

Diagnostic Codes
Diagnostic codes alert the operator that a problem in
the electronic system has been detected. Diagnostic
codes are also used by the service technician to
identify the nature of the problem. The electronic
service tool is a software program that is designed to
run on a personal computer. The software can be
used by the service technician in order to view the
diagnostic code information for an ECM. Diagnostic
codes may consist of the component identifier (CID),
and the failure mode identifier (FMI).
Component Identifier (CID) – The CID indicates the
component that generated the code. For example,
the CID number 1 identifies the fuel injector for the
number one cylinder.
Failure Mode Identifier (FMI) – The FMI indicates
the type of failure.
Suspect Parameter Number (SPN) – The SPN is a
code which is assigned to each component in order
to identify data via the data link to the ECM. This is
used on the diagnostics for the CAN data link.
Refer to Troubleshooting, "Diagnostic Code Cross
i04015352
Reference" for the complete list of the diagnostic
codes and a description of each code. There is a
troubleshooting procedure for every diagnostic code.
Refer to Troubleshooting, "Troubleshooting With A
Diagnostic Code".
When a diagnostic code is activated, the Electronic
Control Module (ECM) transmits information about
the code over the J1939 data link. The J1939
devices display the code. However, the code
will be displayed with a SPN-FMI code. Refer to
Troubleshooting, "Diagnostic Code Cross Reference"
for a cross-reference between SPN-FMI codes and
diagnostic codes.
Do not confuse diagnostic codes with event codes.
Event codes alert the operator that an abnormal
operating condition such as low oil pressure or high
coolant temperature has been detected. Refer to
Troubleshooting, "Troubleshooting with an Event
Code" for additional information on event codes.
Illustration 14 is an example of the operating range
of a sensor.
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Troubleshooting Section