LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2006 >> Corolla CE, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System (SFI) (2ZZ-GE) - Diagnostics) >> DTC P2430, P2431, P2432, P2433: Secondary Air Injection System Air Flow/Pressure Sensor Circuit/Range/Performance/Low/High Bank 1 >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.

HINT:

The pressure condition of the secondary air passage can be checked using a hand-held tester.

  1. Connect a hand-held tester to the DLC3.
  2. Turn the ignition switch to ON and turn the tester ON.
  3. Start the engine.
  4. On the tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / SECOND AIR VSV / ALL or USER DATA.
    NOTE: When selecting USER DATA, select SECONDARY AIR and SECOND AIR VSV on the tester screen by pressing the YES button on the tester.

    HINT:

    When the Vacuum Switching Valve (VSV) of the secondary air system is operated, the air pump operates simultaneously.

  5. Check that the SECONDARY AIR and SECOND AIR VSV, displayed on the tester, indicate the conditions shown in the table below.
    NOTE: This test only allows technicians to operate the VSV for 5 seconds. If the test is repeated, intervals of at least 30 seconds are required between tests.
    SECONDARY AIR and SECOND AIR VSV INSPECTION

    Tester Operations SECONDARY AIR ((1)) SECOND AIR VSV ((2))
    VSV: ON ON ON
    VSV: OFF OFF OFF
    (1) Denotes the signal transmitted by the ECM to operate the air pump.
    (2) Denotes the signal transmitted by the ECM to operate the VSV.

    HINT:

  1. CHECK HARNESS AND CONNECTOR (PRESSURE SENSOR - ECM) 
    1. Disconnect the A23 pressure sensor connector.
    2. Disconnect the E3 and E5 ECM connectors.
    3. Check the resistance.

      Standard (Check for open): 

      PRESSURE SENSOR - ECM RESISTANCE (CHECK FOR OPEN)

      Tester Connections Specified Conditions
      Pressure sensor (A23-1) - E2 (E3-28) Below 1 Ω
      Pressure sensor (A23-2) - AIP (E5-34) Below 1 Ω
      Pressure sensor (A23-3) - VC (E3-18) Below 1 Ω
      Fig 1: Identifying Terminals Of Pressure Sensor Connector
      G02599415Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard (Check for short): 

      PRESSURE SENSOR - ECM RESISTANCE (CHECK FOR SHORT)

      Tester Connections Specified Conditions
      Pressure sensor (A23-2) or AIP (E5-34) - Body ground 10 kΩ or higher
      Pressure sensor (A23-3) or VC (E3-18) - Body ground 10 kΩ or higher
    4. Reconnect the pressure sensor connector.
    5. Reconnect the ECM connector.
      Fig 2: Disconnecting E3 And E5 ECM Connectors
      G02599416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    2. OK: GO TO NEXT STEP 
  2. INSPECT ECM (AIP VOLTAGE) 
    1. Connect a pressure gauge to the air pressure sensor as shown in the illustration.
    2. Turn the ignition switch to ON (do not start engine).
    3. Check for voltage change between terminals AIP and E2 of the ECM connector when the pressure is applied to the pressure sensor using the pressure gauge.
      Fig 3: Connecting Pressure Gauge To Air Pressure Sensor
      G02599417Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 4: Inspecting ECM (AIP Voltage)
      G02599418Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE PRESSURE SENSOR (TURBO PRESSURE SENSOR) (See  PRESSURE SENSOR (TURBO PRESSURE SENSOR) (2ZZ-GE)  ) 
    2. OK: GO TO NEXT STEP 

      REPLACE ECM (See  ECM (1ZZ-FE/2ZZ-GE) REPLACEMENT  ) 

scientia non olet · About LEMON Manuals