P2420 2007 TOYOTA HIGHLANDER - Evaporative Emission System Switching Valve Control Circuit High
- Faulty Vacuum Pump Module
- Vacuum Pump Module harness is open or shorted
- Vacuum Pump Module circuit poor electrical connection.
- Faulty Engine Control Module (ECM)
When is the code detected?To determine leak criterion (Reference pressure), vacuum pump creates negative pressure in canister pump module through 0.02 inch orifice and pressure is measured. If the conditions are not met, Engine Control Module (ECM) the code will be set.
- Engine Light ON (or Service Engine Soon Warning Light)
P2420 2007 Toyota Highlander Description5 hours after the ignition switch is turned OFF, the electric vacuum pump creates negative pressure (vacuum) in the EVAP (Evaporative Emission) system. The Engine Control Module (ECM) monitors for leaks and actuator malfunctions based on the EVAP pressure.
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P2420 2007 TOYOTA HIGHLANDER CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P2420 2007 Toyota Highlander code? Have you replaced any parts?
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