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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Automatic Transmission - A750F) >> Automatic Transmission System >> DTC P0976, P0977: Shift Solenoid "B" Control Circuit Low (Shift Solenoid Valve S2); Shift Solenoid "B" Control Circuit High (Shift Solenoid Valve S2) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

The shift solenoid valve S2 turns ON/OFF normally when the shift lever is on D:

SHIFT SOLENOID VALVE S2 POSITION

ECM gear shift command 1st 2nd 3rd 4th 5th
Shift solenoid valve S2 OFF ON ON OFF OFF
  1. INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE S2) 
    1. Disconnect the E1 wire connector.
    2. Measure the resistance of the transmission wire.

      Standard resistance 

      TERMINALS RESISTANCE SPECIFICATION

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

    NG: Go to step   3 

    Fig 1: Identifying Transmission Wire Connector
    G04436493Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO NEXT STEP 

  2. CHECK WIRE HARNESS (TRANSMISSION WIRE - ECM) 
    1. Disconnect the E6 ECM connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TERMINALS RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E6-10 (S2) - Body ground 20°C (68°F) 11 to 15 Ω

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 2: Disconnecting E6 ECM Connector
    G04436494Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE ECM 

  3. INSPECT SHIFT SOLENOID VALVE S2 
    1. Remove the shift solenoid valve S2.
    2. Measure the resistance between the solenoid valve terminal and solenoid valve body.

      Standard resistance: 11 to 15 Ω at 20°C (68°F) 

    3. Connect the battery's positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.

      OK: Solenoid makes an operating noise. 

    NG: REPLACE SHIFT SOLENOID VALVE S2 

    Fig 3: Measuring Resistance Between Solenoid Valve S2 Terminal & Solenoid Valve Body
    G04436495Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPAIR OR REPLACE TRANSMISSION WIRE