Engine-Codes - Generic - B2156

B2156 Code - Rear Doppler Sensor Circuit Failure

- Code Popularity: 5,462 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B2156?

  • Faulty Rear Doppler Sensor
  • Rear Doppler Sensor harness is open or shorted
  • Rear Doppler Sensor circuit poor electrical connection
  • Faulty Body Control Module (BCM)

|How to Fix the B2156 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 B2156?

Labor: 1.0

The cost to diagnose the B2156 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.

Does your Car have Safety Recalls? → Check here

|What are Code B2156 Possible Symptoms?

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

|What Does the B2156 Code Mean?

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

B2156 Code - Rear Doppler Sensor Circuit Failure

|Need more Information on the B2156 Code?

Need more information on how to fix the B2156 code? Get Access to Factory Service Manuals

|Code B2156 Information for Specific Makes

  • B2156 Acura Driver Side MPCS Unit Lost Communication With MICU
  • B2156 Honda Driver Side MPCS Unit Lost Communication With MICU

|Need Help with the B2156 Code?

Get the B2156 code diagnosed by a professional: Find a repair shop in your area