| CAUTION | If ECM replacement is instructed in following testing, always ensure ECM connectors and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. |
Circuit Description
Vapor pressure sensor and Vacuum Switching Valve (VSV) for vapor pressure sensor are used to detect faults in EVAP system. DTC is set if vapor pressure sensor malfunctions. Possible causes are
- Short or open in vapor pressure sensor circuit.
- Vapor pressure sensor.
- ECM.