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P2209 Diagnostic Trouble Code Discussion for June 2016

ABS CAN Message Missing / Incorrect


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Trouble Ticket Help Requests for DTC P2209
Help Request Posted
2011 GMC Sierra 2500 HD SLE 6.6L MIL Lamp on VIN: 1GT220C86B
P2209: Nox sensor Bank 1 Heater Sense Ckt Rng/Perform. Truck has codes P2202 and P2209. Should I just replace the #1 NOx a upstream sensor or are there other diagnostic checks to try? (My brother's truck)
June 13, 2016