BENDIX Intellipark Service Data page 48

SPN FMI
516124 2 J1939 Engine
Node - Timeout or
Communication Loss
516125 2 Tractor Pressure Sensor
Shorted to Trailer
Pressure Sensor
516126 2 Internal ECU Issue
SPN516126 FMI2
516127 2 Internal ECU Issue
SPN516127 FMI2
Table 6 – Diagnostic Trouble Codes (DTCs)
48
Description
Loss of CAN messages
Sensor wires short to each
other
DECU incorrect DATA
Unexpected action seen
Cause
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Corrective Action
Verify there are no open wires or
shorts on the 2 CAN inputs, Pins
13/15 on J1 and Pins 6/8 on J2
connector.
Verify the 2 CAN inputs have
terminating resistors at the DECU
side and at the backbone.
Verify the engine is broadcasting
for source address 00 on
CAN bus and that intellipark is
connected when the vehicle is
keyed on.
This DTC should resolve once it
receives CAN data from SA 0B.
Check Pin 4 on J1 and J2
connectors to see if they are
shorted to one another. There
should be no connection between
the 2 wires.
Check resistance with an ohm
meter between the Pins to verify
no connection is detected.
Trace the wires from Pin 4 on the
J1/J2 connectors to the tractor
and trailer pressure sensors on
PVM Pin 1 to verify there are no
shorts in the wiring harness.
Cycle the battery and/or place
the key in the off position for 30
seconds.
This DTC should resolve once
the cause is addressed.
If the DECU just received a
software update, reattempt
or revert to previous software
version if possible.
Cycle the battery and/or place
the key in the off position for 30
seconds.
This DTC should resolve once
the cause is addressed. If the
DTC persists, replace the ECU.
Disconnect and reconnect power
to the DECU; this should heal the
DTC if it is active.
Unpark the tractor and drive the
vehicle; if the DTC becomes/
remains active, replace the ECU.
Cycle the battery and/or place
the key in the off position for 30
seconds.
This DTC should resolve once
the cause is addressed. If the
DTC persists, replace the ECU.