P1459

P1459:
The scan tool indicates Diagnostic Trouble Code (DTC) P1459: Evaporative emission (EVAP) purge flow switch malfunction.

DESCRIPTION
By monitoring the output of the EVAP purge flow switch at idle, the ECM/PCM detects malfunctions in the EVAP purge flow switch circuit.

Possible Causes
- EVAP Purge Flow Switch
- EVAP Purge Flow Switch Circuit
- Vacuum lines
- ECM/PCM