DTC P22A7 Chevrolet
NOx Sensor 2 Heater Feedback Performance
NOx Sensor 2 Heater Feedback Performance
Description
DTC P2209 or P22A7 DTC P064C, P163C, P220A, or P220B are not set. The battery voltage is greater than 11 V. The engine speed is between 600-5,000 RPM. The Exhaust Gas Temperature Sensor 1 is greater than 95°C (203°F). The DTCs run continuously once the above conditions are met.
Cause and Solution
DTC P2209 or P22A7The ECM receives NOx sensor module serial data message indicating that the sensor is not ready or the sensor message is invalid for greater than 0.5 s.
Video Guide
Diagnostic Info
- DTC Code: P22A7
- Brand: Chevrolet