Engine-Codes - Generic - B1249

B1249 Code - Double Locking ECU Communication Stop

- Code Popularity: 21,802 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B1249?

  • 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 to Fix the B1249 Code?

Start by checking 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.

|What is the Cost to Diagnose the Code B1249?

Labor: 1.0

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

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|What are Code B1249 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.

Double Locking ECU Communication Stop

|Need more Information on the B1249 Code?

Need more information on how to fix the B1249 code? Get Access to Factory Service Manuals

|Code B1249 Information for Specific Makes

|Need Help with the B1249 Code?

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