EVAP System Leak Detection Pump Control Circuit High
Table of contents
P2402 TOYOTA Possible Causes
- Faulty Vacuum Pump Module
- Vacuum Pump Module harness is open or shorted
- Vacuum Pump Module circuit poor electrical connection.
- Faulty Engine Control Module (ECM)
How do I fix code P2402 TOYOTA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
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Cost of diagnosing the P2402 TOYOTA code
The cost of diagnosing the P2402 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2402 TOYOTA Description
5 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. To determine the leak criterion (Reference pressure), a vacuum pump creates negative pressure in the canister pump module through 0.02 inch orifice and pressure is measured. If the conditions are not met, the Engine Control Module the code will be set.