P220B

ISO/SAE Reserved

DTC P220B, sometimes indicated as P220B00 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing iso/sae reserved.

P220B: ISO/SAE Reserved
P220B: Nitrogen oxides (NOx) sensor 2, bank 1 – supply voltage circuit malfunction
P220B 00: Nitrogen oxides (NOx) sensor 2, bank 1 - supply voltage circuit malfunction

DTC Trouble Code Search

Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

PIP5615A - ENGINE AND ENGINE COOLING
CHEVROLET: This preliminary information communicates that a engine control module (ecm) service update calibration forP034A, P0421, P050F, P059F, P111E, P11DC, P122D, P1488, P220B, P22FE, P2457, P2463, P2BAA.

Consumer Complaints for this DTC

2014 CHEVROLET SILVERADO 2500 with 99985.0 miles

I have several dtc codes U029D U029E P0420 P220B on three occasions. These code are triggering a limited speed and possible power reduction. The dealer ship states that gmc protocol is to replace one sensor at a time and let the customer go so they can breakdown again. The part that is failing i am told is the diesel particulate filter, but gmc can not supply the dealerships with the high demand. This seems like a faulty design that may work during the warranty period, but shorty fails after. I did report exhaust smell in the truck while driving . I was given a report and a large repair bill only to breakdown in 126 miles.
ENGINE, ELECTRICAL SYSTEM