P1607Check-engine lamp request from the engine computer missing or invalid
- Ford code · Instrument cluster
- Lights a warning lamp
- How the car detects it
- The instrument cluster lights the check-engine lamp (MIL) when the engine computer asks it to over the network. P1607 means that request message is missing, not updated or invalid. Ford's chart clears the code and retests; if it returns without a lost-communication code (U0100) for the engine computer, the engine computer is replaced. Until it is fixed, the cluster may be unable to warn you about engine faults.
- What you may notice
- Check-engine light on, or not working
- Often set together with U0100
- Likely causes
- PossibleNetwork wiring or connectors between engine computer and cluster
- RareEngine computer (PCM)
- Sources
Backed by at least two independent sources.
From Obdaryn's Ford pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.