GMC Sierra: P2135 DTC: Meaning, Causes, and Diagnosis
P2135 is a generic powertrain code that can affect any make or model of vehicle that has a “drive by wire” throttle system (almost every vehicle made today). P2135 TPS Switch “A/B” Voltage Correlation If your GMC Sierra has P2135 it is considered “drive by wire”. Which means that it uses sensors and actuators to control … Read more