Transponder Key ECU Communication Stop
Table of contents
B2544 LEXUS Possible Causes
- Faulty Transponder Key ECU
- Transponder Key ECU harness is open or shorted
- Transponder Key ECU circuit poor electrical connection
How do I fix code B2544 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 B2544 LEXUS code
The cost of diagnosing the B2544 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)
B2544 LEXUS Description
Receiving the multiplex signals (ignition switch position). Since the sliding roof ECU inputs the ignition signal directly, it can recognize the ignition switch position using either the ignition signal or multiplex signals.