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Home >> Toyota >> 2023 >> GR86 Base, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (6 Of 6) & Circuit Tests >> SFI System >> DTC P2402: EVAP System Leak Detection Pump Control Circuit High [11/2021 - ] >> Procedure
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DTC P2402: EVAP System Leak Detection Pump Control Circuit High [11/2021 - ]: Procedure

  1. CHECK HARNESS BETWEEN ECM AND CANISTER PUMP MODULE CONNECTOR (SHORT TO POWER SUPPLY) 
    1. Turn the ignition switch to OFF.
    2. Disconnect the connector from the canister pump module.
    3. Turn the ignition switch to ON.
    4. Measure the voltage between the canister pump module connector and chassis ground.

      Connector & terminal

      M23-4 - Chassis ground

      Is the voltage 10 V or higher?

      Result Proceed to
      Yes (Repair the short circuit to power in harness between ECM connector and canister pump module connector.) A
      No B

    Result: 

    REPAIR HARNESS OR CONNECTOR 

    Result: 

    REPLACE CANISTER PUMP MODULE 

    Refer to PROCEDURE - Step 5