The body control module sees the rear washer switch not working as expected
What it means
B1052. The body control module sees the rear washer switch not working as expected. The rear washer may not spray or may run at the wrong time.
Findings, check these first
- Faulty rear washer switch
- Open or shorted washer switch wiring
- Poor electrical connection at the switch
- Faulty washer pump circuit
- Faulty body control module
Standard procedure
- Confirm the code and test the rear washer switch
- Inspect the switch and its connector
- Check the washer switch wiring for an open or short
- Test the washer pump circuit
- Replace the failed switch after circuit 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.
- B1052 FORD: 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.
- B1052 FORD Rear Washer Switch Performance or Incorrect Operation | AutoCodes.com
archived reference page (autocodes.com via Wayback Machine)
Supports: corroboration of Ford meaning and causes
Same Ford text as the engine-codes page (both sites share one publisher).
Last updated 2026-09-26.
Report a correction for B1052. Include your vehicle, the issue and a source if you have one.