P2BAD – GMC

Code : P2BAD
Make : GMC
Description : P2BAD GMC NOx Exceedence – Root Cause Unknown
Possible causes :
– Exhaust Leaks
– Fuel contamination
– Faulty Diesel Particulate Filter (DPF)
– Faulty NOx Sensor
– Diesel Exhaust Fluid
– Faulty Selective Catalyst Reduction (SCR) Catalyst
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

Leave a Comment

Your email address will not be published. Required fields are marked *