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DTC P2532-772: Ignition Switch Run Position Circuit High: Procedure

  1. CHECK HARNESS AND CONNECTOR (+B SHORT) 
    1. Disconnect connector A20 from the power management control ECU.
      Fig 1: Identifying A20 Connector Terminal
      GTY352970Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Power Management Control ECU)
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      A20-1 (IG2) - Body ground Power switch off Below 1 V
      A20-2 (IG2D) - Body ground Power switch off Below 1 V
      RESULT

      Result Proceed to
      NG A
      OK B
    3. Connect the power management control ECU connector.

    B → See step   3 

    A: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO. 2 INTEGRATION RELAY) 
    1. Disconnect connector A20 from the power management control ECU.
    2. Remove the No. 2 integration relay from the engine room junction block assembly.
      Fig 2: Identifying A20 Connector Terminal
      GTY352970Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Power Management Control ECU)
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      A20-1 (IG2) - Body ground Power switch off Below 1 V
      A20-2 (IG2D) - Body ground Power switch off Below 1 V
    4. Install the No. 2 integration relay.
    5. Connect the power management control ECU connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → REPLACE NO. 2 INTEGRATION RELAY 

  3. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to  COMPONENTS