Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
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The faults will need cleared out either with a scan tool plugged into your vehicle using the clear codes function or by driving the vehicle up to 2 weeks or longer until the computer runs its own testing in your vehicle to see the faults have been corrected.These are the only ways to clear the code and turn off the light.
P0496 can indicate the purge needing replaced and can be common for this code here.
P2187 is a fuel trim fault code here.This can also be caused by the purge stuck on.
I would start with replacing the purge solenoid and see if this resolves both faults here.
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