AUTOMATIC TRANSAXLE SYSTEM Pattern Select Switch Sport Mode Circuit

DESCRIPTION

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

By following the programs corresponding to the signals from the pattern select switch assembly, park/neutral position switch and other various sensors, the TCM switches the shift solenoid valves on and off, and controls the transaxle gear ratio.

WIRING DIAGRAM

A004NQTE08
*a Pattern Select Switch Assembly
*b CAN Communication Line

PROCEDURE


  1. INSPECT PATTERN SELECT SWITCH ASSEMBLY


    1. A004S8NE28
      Text in Illustration
      *1

      Component without harness connected

      (Pattern Select Switch Assembly)

      Remove the pattern select switch assembly Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      4 (MSW1) - 1 (MSW2) Pattern select switch on Below 1 Ω
      4 (MSW1) - 1 (MSW2) Pattern select switch off 10 kΩ or higher

    NG

    REPLACE PATTERN SELECT SWITCH ASSEMBLY Click here

    OK

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


    1. A004ROYE04
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Pattern Select Switch Assembly)

      Disconnect the pattern select switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D63-1 (MSW2) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A004NFCE02
      Text in Illustration
      *1

      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
      A40-36 (PWMS) - Body ground Pattern select switch on Below 1 Ω
      A40-36 (PWMS) - Body ground Pattern select switch off 10 kΩ or higher

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR