The body control module cannot move the passenger door central locking motor to the commanded position
What it means
B1109. The body control module cannot move the passenger door central locking motor to the commanded position. That door may not lock or unlock with the power locks.
Findings, check these first
- Faulty passenger door central locking motor
- Open or shorted motor wiring
- Poor motor connector
- Binding or damaged door latch assembly
- Faulty body control module
Standard procedure
- Confirm the code and command the passenger door lock
- Inspect the motor and its connector
- Check the motor circuit for an open or short
- Check the latch for binding or damage
- Replace the failed motor or module 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.
- B1109 FORD Passenger Door Central Locking Motor Commanded Position Not Reachable: 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.
- B1109 Ford - Passenger Door Central Locking Motor Commanded Position Not Reachable | 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 B1109. Include your vehicle, the issue and a source if you have one.