P1570 Radar Sensor Malfunction (Pre-Collision/Adaptive Cruise)
What does P1570 mean on a Toyota?
P1570 — Radar Sensor Malfunction (Pre-Collision/Adaptive Cruise). This Toyota-enhanced code applies to Camry, Corolla, RAV4 with Toyota Safety Sense.
Common causes of P1570
- Blocked radar sensor (snow, mud, bumper cover)
- Failed millimeter-wave radar unit
- Misaligned sensor after bumper work
- Corroded radar connector
- Low system voltage
How to fix P1570
- Clean the radar sensor face and grille emblem first
- Check for bumper damage or aftermarket covers
- Verify sensor alignment with Toyota equipment
- Inspect the connector
- Replace the radar unit after alignment exclusion