Conditions for Setting the DTC
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
P1516
The actual throttle position does not match the predicted throttle position for greater than 0.2 s.
P2101
The actual throttle position does not match the predicted throttle position for greater than 0.2 s.
P2119
The ECM detects that the throttle blade did not return to the default position when the TAC motor is not powered-up, during power down for greater than 0.5 s.
P2176
The ECM detects that both throttle position (TP) sensors were greater than a predetermined voltage during the minimum throttle learn procedure for greater than 2 s.