Rear Left Sensor Malfunction
Table of contents
B2237 TOYOTA Possible Causes
- Faulty Rear Left Sensor
- Rear Left Sensor harness is open or shorted
- Rear Left Sensor circuit poor electrical connection
- Faulty Clearance Warning ECU
How do I fix code B2237 TOYOTA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B2237 TOYOTA code
The cost of diagnosing the B2237 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B2237 TOYOTA Description
The No. 3 Ultrasonic Sensor (Rear Left Sensor) is installed on the front bumper. The Clearance Warning ECU detects obstacles based on signals received from the Rear Left Sensor. If the Rear Left Sensor circuit has an open, short or other malfunction, it will not function normally. The Diagnostic Trouble Code (DTC) sets if a malfunction of No. 3 Ultrasonic Sensor (Rear Left Sensor).