DTC C0388 Hummer
Throttle Pedal Position Sensor Switch B Circuit Range Performance
Throttle Pedal Position Sensor Switch B Circuit Range Performance
Description
The electronic throttle control (ETC) throttle position (TP) sensor 2 circuit was flagged as a concern by the powertrain control module (PCM) indicating an out of range in either the closed or wide open throttle (WOT) modes.
Cause and Solution
Obstruction in the throttle plate movementDamaged throttle bodyTP circuit open to PCMDamaged TP sensorSelf-test operator error (foot resting on the accelerator pedal during test)
Diagnosis:
This concern exhibits a symptom of limited power.
Video Guide
Diagnostic Info
- DTC Code: C0388
- Brand: Hummer