Conditions for Setting the DTC
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
P0121
The ECM detects the throttle position sensor is stuck within range for greater than 1 s.
P0122
The ECM detects the throttle position sensor 1 voltage is less than 0.325 V for greater than 1 s.
P0123
The ECM detects the throttle position sensor 1 voltage is greater than 4.75 V for greater than 1 s.
P0222
The ECM detects that the throttle position sensor 2 voltage is less than 0.25 V for greater than 1 s.
P0223
The ECM detects the throttle position sensor 2 voltage is greater than 4.59 V for greater than 1 s.
P2135
The ECM detects the difference between the throttle position sensor 1 and throttle position sensor 2 exceeds a predetermined value for greater than 1 s.