B2200low severityBody
Front Parking Sensor Circuit
on 2007 Toyota 4Runner 4.0L V6 · RWD
What this code means
Malfunction in the front parking/proximity sensor system. One or more front ultrasonic sensors are not functioning.
Symptoms
- Front parking sensors not beeping
- Constant beeping with no obstacle
- Parking sensor warning on display
- One sensor position not working
Common causes
- Faulty ultrasonic sensor
- Sensor covered by dirt, ice, or paint
- Wiring damage
- Parking assist module failure
- Sensor knocked out of alignment
Diagnostic steps
- Clean all front sensors
- Test each sensor individually with scan tool
- Inspect sensor wiring
- Check parking assist module
- Listen for sensor clicking (normal operation sound)
Repair notes
Replace faulty ultrasonic sensor. Clean sensors. Ensure sensors are properly seated in bumper.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0007
Rear Left Side Airbag Deployment Circuit
B0008
Rear Right Side Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment
B0011
Driver Side Airbag Deployment Circuit Open