Circuit/System Description
WARNING: This page is about a different variant/trim than selected.
For an overview of the component/system, refer to: Evaporative Emission Control System Description
| Circuit | Description |
|---|---|
| 5 V Reference | Regulated voltage supplied by the control module. |
| Signal | The control module input circuit has an internal resistance connected to ground. |
| Low Reference | Grounded through the control module. |
| Component | Description |
|---|---|
| B150 Fuel Tank Pressure Sensor | The pressure sensor is a 3 wire piezoelectric pressure transducer. |
| K20 Engine Control Module | The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly. |
This diagnostic tests the Evaporative Emission (EVAP) System for a restricted or blocked EVAP vent path that would cause excess amounts of vacuum to develop in the EVAP system.