PATS Receiver Module Signal Not Received
Findings, check these first
- Failed PATS transceiver module
- Open or shorted transceiver signal circuit
- Corroded transceiver connector
- Blown PATS module fuse
- PATS control module fault
Standard procedure
- Check the PATS-related fuses before touching any module
- Inspect the transceiver connector and wiring for opens or shorts
- Verify transceiver power and ground with the key on
- Test with a known-good transceiver where serviceable separately
- Replace the transceiver module after confirming its circuits
Code lookup
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Sources and review
Review: checked against the recorded source material.
- OBDII.pro: B1681 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for B1681: PATS TRANSCEIVER SIGNAL IS NOT BEING RECEIVED BY THE PATS CONTROL
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
- B1681 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for B1681: PATS Transceiver Module 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 B1681. 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.