DTC U1144 Chevrolet
Title: Throttle Position Sensor Circuit Malfunction
Title: Throttle Position Sensor Circuit Malfunction
Description
Trouble Code ConditionsKey on or engine running; and the PCM detected the TP sensor was more than 1.0v with the throttle closed, or that the TP sensor was less than 4.90v during a wide open throttle event.
Cause and Solution
TP sensor signal circuit open or shorted to groundTP sensor ground circuit is openTP sensor power circuit is open (check VREF circuit at PCM)TP sensor is damaged or has failedPCM has failed
Video Guide
Diagnostic Info
- DTC Code: U1144
- Brand: Chevrolet