Adaptive Front-lighting System ECU Malfunction
Table of contents
B2420 TOYOTA Possible Causes
- Faulty Adaptive Front-lighting System (AFS) ECU
- Adaptive Front-lighting System (AFS) ECU harness is open or shorted
- Adaptive Front-lighting System (AFS) ECU circuit poor electrical connection
How do I fix code B2420 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 B2420 TOYOTA code
The cost of diagnosing the B2420 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)
B2420 TOYOTA Description
When the Adaptive Front-lighting System (AFS) ECU detects a malfunction in itself, this Diagnostic Trouble Code (DTC) is stored.