ACC Monitor Malfunction
Table of contents
B2274 LEXUS Possible Causes
- Faulty ACC Relay
- Faulty Certification ECU (Smart Key ECU Assembly)
- Certification ECU harness is open or shorted
- Certification ECU circuit poor electrical connection
How do I fix code B2274 LEXUS?
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 B2274 LEXUS code
The cost of diagnosing the B2274 LEXUS 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)
B2274 LEXUS Description
This Diagnostic Trouble Code (DTC) is stored when a malfunction in the ACC output circuit is detected. The ACC output circuit is the circuit that goes from the ACC output terminal of the Certification ECU (Smart Key ECU Assembly) to the ACC Relay.