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2023 OWNER’S MANUAL
DIAGNOSTICS
All engine, PDM, EPDM and Tab diagnostic information can be
found under DIAGNOSTICS on the main menu. Tap one of the four
diagnostic options to pull up system diagnostics.
Engine Diagnostics
Shows the number of both Active and Stored faults and which fault
number is currently being displayed. To advance to the next fault,
touch NEXT. Touch PREVIOUS to go back to the previous fault.
SPN — Suspect Parameter Number — fault code. If not translated
into text by the display, see the engine manufacturer’s literature
for the definition of the SPN number.
FMI — Failure Mode Indicator — fault code. The FMI is defined by
SAE J1939. If not translated into text, see the SAE standard, or the
engine manufacturer’s literature.
Description Field — Most common SPNs and FMIs have text for
the description stored in the display. If there is no text, refer to the
engine manufacturer or the SAE J1939 standard. NOTE: This field
is only used with certain engine models.
Corrective Action — Tap GET FAULTS. This queries the engine(s)
ECU for feedback on diagnostic codes activated and stored in the
ECU for service needs.
PDM Diagnostics
PDM Diagnostics displays faults for outputs, inputs and CAN
communications for PDM modules. XT Series models have two
PDMs. X Series models have three. To check all PDMs for faults,
tap PDM 1, PDM 2 or PDM 3 on the PDM Diagnostics page. Faults
on each PDM will be displayed on their respective pages. To reset
existing faults, touch RESET FAULTS.
Faults are color coded as follows:
• Red - Short Circuit or
Out of Range
• Orange - Open Circuit
• Yellow - Over-Current
• Green - No Faults /
Active / In Range
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