Injector Group B Supply Voltage
Can I Drive?
No -- Stop Driving
DIY Difficulty
advanced
Estimated Cost
$450-$2,500
What does MAXXFORCE-P2149-13 mean?
The MAXXFORCE-P2149-13 (MaxxForce) diesel fault code means: Injector Group B Supply Voltage. This is a serious severity code.
Common Symptoms
- Multi-cylinder misfire
- Derate
Probable Causes (Ranked by Likelihood)
- Shorted injector in group B Likely
Step-by-Step Diagnostic Procedure
Isolate group B injectors.
Replace harness or injector.
Frequently Asked Questions
What is P2149 on a MaxxForce 13 (12.4L)?
P2149 on a MaxxForce 13 (12.4L) (2008-2014) indicates: Injector Group B Supply Voltage. This is a known fault code on the MaxxForce engine family and typically points to the causes listed above.
Can I drive with P2149 on my MaxxForce?
No. Stop driving and arrange for towing. Continued operation risks catastrophic damage or stranding.
How much does it cost to fix MaxxForce P2149?
Repair cost is typically $450-$2,500 depending on the underlying cause and shop rate. Many MaxxForce faults (especially EGR cooler, head bolt, and VGT repairs) are major expenses that drove fleet owners to repower with Cummins or retire these trucks early.