Volvo Engine D13F Fault Code: PID 251 FMI 2 Clock
Volvo Engine D13F Fault Code: PID 251 FMI 2 Clock
CONTROL UNIT:
Engine ECU
DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that time data is missing or is not arriving often enough.
SYMPTOM:
Limp home function activated.
POSSIBLE CAUSES:
1. Both data buses, J1939 and J1708/ J1587 not functional at the same time.
2. Open circuit on bus communication (cable harness).
![Magic Tuner [paccar, Maxxforce, Detroit, Caterpillar, Delete]](https://www.ecuforcetruck.com/wp-content/uploads/2021/10/1-300x300.png)
