Double Locking ECU Communication Stop
Table of contents
B1249 LEXUS Possible Causes
- Faulty Double Lock Door Control Relay
- Double Lock Door Control Relay harness is open or shorted
- Double Lock Door Control Relay circuit poor electrical connection
- Faulty Main Body ECU
How do I fix code B1249 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 B1249 LEXUS code
The cost of diagnosing the B1249 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)
B1249 LEXUS Description
The Diagnostic Trouble Code (DTC) B1249 is stored when communication between the Double Lock Door Control Relay and Main Body ECU stops for more than 10 seconds.