Hummer H1

  P0500 is a OBDII trouble code that affects the Hummer H1‘s Vehicle Speed Sensor (VSS). The VSS sends a signal to the engine’s computer letting it know how fast that the vehicle is going. The H1 uses this signal for many vehicle functions. It helps control transmission shifts, ABS, cruise control, the speedometer, and … Read more

P0507 is a fairly typical OBDII trouble code that can occur in the Hummer H1. It is typically triggered when the engine idle speed is 200 rpm or more over the predetermined limit set by the Hummer It is a generic code, which means that it has the same meaning for the Hummer H1 as any other vehicle. … Read more