PATS Ignition Key Transponder Signal Not Received
Findings, check these first
- Non-PATS or damaged key being used
- Failed key transponder pellet
- Aftermarket remote start interfering with the PATS signal
- Damaged transceiver ring around the ignition cylinder
- PATS module fault
Standard procedure
- Try a known-good Ford PATS key before any other diagnosis
- Remove aftermarket remote start or bypass modules from the circuit
- Inspect the transceiver ring and its wiring at the ignition cylinder
- Check for additional PATS codes that narrow the fault
- Program a new key with Ford-capable equipment if the transponder has failed
Code lookup
Type a code above, or start from a symptom or a common code.
Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.
Sources and review
Review: checked against the recorded source material.
- OBDII.pro: B1600 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for B1600: NO PATS KEY READ BY THE PATS CONTROL
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
- B1600 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for B1600: PATS Ignition Key Transponder Signal Is Not Received
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.
Last updated 2026-09-25.
Report a correction for B1600. Include your vehicle, the issue and a source if you have one.
This fault is part of the Ford PATS and no-start codes guide. It covers the family and the order to check it.