LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2009 >> Corolla S, 1.8 L, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Automatic Transmission - U341E) >> Automatic Transaxle System >> DTC P0787 Shift / Timing Solenoid Low (Shift Solenoid Valve ST); DTC P0788 Shift / Timing Solenoid High (Shift Solenoid Valve ST) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different variant/trim than selected.
  1. INSPECT TRANSMISSION WIRE (ST) 
    1. Disconnect the transmission wire connector from the transaxle.
    2. Measure the resistance according to the value(s) in the table below.

    Standard resistance 

    TESTER CONNECTION SPECIFIED CONDITION CHART

    Tester Connection Condition Specified Condition
    2 - Body ground 20°C (68°F) 11 to 15 Ω

    NG: Go to step  3

    Fig 1: Identifying B90 Transmission Wire Connector Terminals
    G06012037Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) 
    1. Connect the transmission wire connector to the transaxle.
    2. Disconnect the ECM connectors.
    3. Measure the resistance according to the value(s) in the table below.

    Standard resistance 

    TESTER CONNECTION SPECIFIED CONDITION CHART

    Tester Connection Condition Specified Condition
    B31-80 (ST) - Body ground 20°C (68°F) 11 to 15 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 2: Identifying B31 ECM Connector Terminals
    G06012038Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE ECM (for 2ZR-FE)  (See REMOVAL )

  3. INSPECT SHIFT SOLENOID VALVE ST 
    1. Remove the shift solenoid valve ST.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      Solenoid Connector (ST) - Solenoid Body (ST) 20°C (68°F) 11 to 15 Ω
    3. Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.

      OK: 

      The solenoid makes an operating sound. 

      NG: REPLACE SHIFT SOLENOID VALVE ST  (See DISASSEMBLY )

      Fig 3: Inspecting Shift Solenoid Valve ST
      G05400380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPAIR OR REPLACE TRANSMISSION WIRE  (See REMOVAL )