Engine-Codes - Toyota - P2402 2004 TOYOTA PRIUS

P2402 2004 TOYOTA PRIUS Code - EVAP System Leak Detection Pump Control Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

|P2402 2004 TOYOTA PRIUS code possible causes

  • Faulty Vacuum Pump Module
  • Vacuum Pump Module harness is open or shorted
  • Vacuum Pump Module circuit poor electrical connection
  • EVAP system hose (clogged, cracked or broken)
  • Faulty Engine Control Module (ECM)

|How is the P2402 2004 TOYOTA PRIUS code repair?

Start by checking 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.

|What is the cost to diagnose the P2402 2004 TOYOTA PRIUS code

Labor: 1.0

The cost to diagnose the P2402 2004 TOYOTA PRIUS code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P2402 2004 TOYOTA PRIUS code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What is P2402 2004 TOYOTA PRIUS code meaning?

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.

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