P246B – GMC

Code : P246B
Make : GMC
Description : P246B GMC Vehicle Conditions Incorrect for Diesel Particulate Filter Regeneration
Possible causes :
– Fuel system concerns
– Turbocharger system concern
– Exhaust leaks
– Oxidation catalytic converter (OC)
– Aftermarket exhaust accessories or performance modifications
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.

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