Controls and Operating
3-37
ENGINE FAULT CODES
Fault codes generated in the CAN network are sent via CAN message.
This document describes how to interpret these fault codes.
Abbreviations
Failure Mode Identifiers
Explanation of FMI codes.
Abbreviation Explanation
SPN Suspect Parameter Number
FMI Failure Mode Identifiers
Code Explanation
0 Data valid but above normal operational range (that is, engine overheating)
1 Data valid but below normal operational range (that is, engine oil pressure too low)
2 Data erratic, intermittent, or incorrect
3 Voltage above normal or shorted high
4 Voltage below normal or shorted low
5 Current below normal or open circuit
6 Current above normal or grounded circuit
7 Mechanical system not responding properly
8 Abnormal frequency, pulse width, or pending
9 Abnormal update rate
10 Abnormal rate of change
11 Failure mode not identifiable
12 Bad intelligent device or component
13 Out of calibration
14 Special instructions
15 Reserved for future assignment by the SAE subcommittee
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