VOLVOUU Engine D11L (Tier 4) Fault Code: PID 252 FMI 9 Date
CONTROL UNIT:
Engine ECU
DETECTION CONDITIONS:
The engine control unit (E-ECU) registers that date data is missing or is not arriving often enough.
SYMPTOM:
The date data is missing on bus, from I-ECU.
POSSIBLE CAUSES:
1. Open circuit on bus communication (cable harness).
2. Electric interference on the bus signal.
3. Faulty I-ECU.
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