B127B - Rearview Camera Input Signal

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

B127B Possible Causes

  • Faulty Rearview Camera
  • Rearview Camera harness is open or shorted
  • Rearview Camera circuit poor electrical connection
  • Faulty Human Machine Interface Control Module

How do I fix code B127B?

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.
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Cost of diagnosing the B127B code

Labor: 1.0

The cost of diagnosing the B127B 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)

B127B Description

When the vehicle is placed in reverse with the engine running, a voltage signal is sent to the rearview camera to turn on and send a video signal to the Human Machine Interface Control Module. If the Human Machine Interface Control Module does not see a signal from the camera it will set B127B 2B and display Service Rear Vision System.
OBDII Code B127b - Rearview Camera Input Signal - AutoCodes.com

More Information

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