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AutoCodes - Generic - B2157

B2157 Code - Front Doppler Sensor Circuit Failure

- Code Popularity: 3,911 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B2157?

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 Front Doppler Senso
  • Front Doppler Senso harness is open or shorted
  • Front Doppler Senso circuit poor electrical connection
  • Faulty Body Control Module (BCM)
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How to Fix the DTC B2157?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2157 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B2157 Description

The Body Control Module (BCM) monitors the Front Doppler Senso. The BCM sets the OBDII code when the Front Doppler Senso is not to factory specifications.

OBDII Code B2157 - Front Doppler Sensor Circuit Failure - AutoCodes.com
B2157 Code - Front Doppler Sensor Circuit Failure

Need More Information on the Code?

Need more information on how to fix the B2157 code? Get Access to Factory Service Manuals

Information for Specific Makes

  • B2157 Acura Driver Side MPCS Unit Lost Communication With Gauge Control Module
  • B2157 Honda Driver Side MPCS Unit Lost Communication With Gauge Control Module

Need Help with the Code?

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Code B2157 comments

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