SPN
FMI
516107
3
High Side Relay -
Shorted to Battery
516107
4
High Side Relay -
Voltage Below Normal
516108
2
Occupancy Sensor 1
Shorted to Occupancy
Sensor 2
Table 6 – Diagnostic Trouble Codes (DTCs)
38
Description
ECU or wiring damage
ECU or wiring damage
J1 Pin 6 and 16 shorted to
one another
Cause
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•
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•
•
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Corrective Action
Check Pin 10 on J1 and Pin 9 on
J2 connector for short to a high
source; if an issue is found, re-
pin at that location.
Check Pin 2 on the tractor and
trailer solenoid connector for
short to a high source; if an issue
is found, re-pin at that location.
Check the connections between
Pin 10 on J1 and Pin 9 DECU J2
connector to Pin 2 on the tractor
and trailer solenoid connector;
re-pin if a short to a high source
is found.
Cycle the battery and/or place
the key in the off position for 30
seconds.
This DTC should resolve once
the cause is addressed.
Check Pin 10 on J1 and Pin 9 on
DECU J2 connector for short to
ground; if an issue is found, re-
pin at that location.
Check Pin 2 on the tractor and
trailer solenoid connector for
short to ground source; if an
issue is found, re-pin at that
location.
Check the connections between
Pin 9 DECU J2 connector to
Pin 2 on the tractor and trailer
solenoid connector; re-pin if a
short to ground is found.
Cycle the battery and/or place
the key in the off position for 30
seconds.
This DTC should resolve once
the cause is addressed.
Check wires at J1 Pin 6 and 16
for damage or a short.
If no issues are seen with the
wiring, take an ohmmeter and
read resistance between J1 Pin
6 and 16; if the reading indicates
there is a path for current to
travel, trace through the wiring
until an issue is seen.
This DTC should resolve once
the cause is addressed.
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