P2149 - OBD II Trouble Code

January 31, 2017

Our automotive experts have put together the following information about the P2149 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2149 code.

What Does P2149 Code Mean?

OBD-II Code P2149 is defined as a Fuel Injector Group "B" Supply Voltage Circuit/Open

The engine computer (PCM) controls the signal to the fuel injectors in groups of two. If the PCM detects one or both of the fuel injectors in that group are not functioning properly, the PCM will set code P2149. The two injectors in that group will be disabled to prevent damage to additional components.

P2149 Symptoms

  • Engine may run rough

Common Problems That Trigger the P2149 Code

  • Fuel injector failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue

About the Author

Brad Kava is an automotive expert at RepairPal, the leading online source of auto repair resources and estimates. With many ASE Master certified mechanics on staff who have decades of experience, RepairPal knows all the fine points of car repair.

No comments yet…

Sign in to comment

Related Questions

See what others have asked about this, or visit the Questions page to ask your own question.
2000 Volkswagen Golf
How to fix error code p2149 for this car? model:1500; maker:volkswagen
2006 Dodge Ram 3500
Changed the fuel filter noticed crud at base of housing so i drained diesel and used a scotch pad to remove the...