Conditions for diagnostic trouble code (DTC):
1) J1939 -2 datalink fault
Observable symptoms
1) Loss of power
Probable cause
1) Open circuit, Data link
2) Short circuit to ground
3) Short circuit to higher voltage
4) Short circuit CAN H – CAN L
5) Faulty or missing terminating resistor in the powertrain datalink
6) Faulty termination resistance in the engine control module (ECM)
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