Engine-Codes - Generic - B1249

B1249 Code - Double Locking ECU Communication Stop

- Code Popularity: 24,561 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC B1249?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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
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How to Fix the DTC B1249?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B1249 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the B1249 Code Mean?

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.

B1249 Code - Double Locking ECU Communication Stop

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Code B1249 Information for Specific Makes

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