AUTOMATIC TRANSMISSION SYSTEM Pattern Select Switch Sport Mode Circuit

DESCRIPTION

The ECM memory contains the programs for the normal and sport shift patterns.

By following the programs corresponding to the signals from the S/S+ switch (combination switch assembly) and other various sensors, the ECM switches the solenoid valves on and off, and controls the transmission gear ratio.

WIRING DIAGRAM

B000YOWE05
*a SPCN
*b Combination Switch Assembly

PROCEDURE


  1. INSPECT COMBINATION SWITCH ASSEMBLY


    1. Inspect the combination switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE COMBINATION SWITCH ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND)


    1. B000XMBC24
      *a

      Front view of wire harness connector

      (to Combination Switch Assembly)

      Disconnect the combination switch assembly connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      P85-1 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM)


    1. B000YRTC57
      *a

      Front view of wire harness connector

      (to ECM)

      Disconnect the ECM connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      A58-10 (PWMS) - Body ground Combination switch assembly knob turned and held at S/S+ position Below 10 Ω
      A58-24 (SPCN) - Body ground Normal/Custom mode switch pushed and held Below 10 Ω
      A58-10 (PWMS) - Body ground Combination switch assembly knob not turned to S/S+ position 10 kΩ or higher
      A58-24 (SPCN) - Body ground Normal/Custom mode switch not pushed 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR