The body control module sees an unprogrammed passive anti-theft key
What it means
B10DA. The body control module sees an unprogrammed passive anti-theft key. The key will not start the vehicle until it is programmed to the module.
Findings, check these first
- Key not programmed to the vehicle
- A key was erased during service
- Key not recognized during programming
- Faulty passive anti-theft transceiver
- Faulty body control module
Standard procedure
- Confirm the code and check for other anti-theft codes
- Inspect the transceiver ring and its connector
- Try a known good programmed key
- Verify the key blank and programming steps
- Repeat programming or replace the failed part after tests
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.
- B10DA FORD PATS Target Identifier Not Programmed: Code Meaning, Causes, Symptoms, & Tech Notes | Engine-Codes.com
archived reference page (engine-codes.com via Wayback Machine)
Supports: code identity, Ford meaning and possible causes
Fetched directly. Ford title, meaning and causes match the catalog record. Model and year fitment remain curator claims.
- B10da Ford - PATS Target Identifier Not Programmed | AutoCodes.com
archived reference page (autocodes.com via Wayback Machine)
Supports: corroboration of Ford meaning and causes
Fetched directly. Same Ford text as the engine-codes page (both sites share one publisher).
Last updated 2026-09-29.
Report a correction for B10DA. 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.