AUTOMATIC TRANSMISSION SYSTEM(for 2TR-FE) Pattern Select Switch Power Mode Circuit

DESCRIPTION

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

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

WIRING DIAGRAM

B0025ZRE05

PROCEDURE


  1. INSPECT COMBINATION SWITCH ASSEMBLY (PATTERN SELECT SWITCH)


    1. B00257DC01
      *1 Combination Switch Assembly (Pattern Select Switch)

      Remove the combination switch assembly (pattern select switch).

      Click here

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      3 (PWR) - 2 (E) Combination switch (PWR) pushed Below 1 Ω
      3 (PWR) - 2 (E) Combination switch (PWR) not pushed 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE COMBINATION SWITCH ASSEMBLY (PATTERN SELECT SWITCH) Click here

    OK

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


    1. B00261YC03
      *a

      Front view of wire harness connector

      (to Combination Switch Assembly (Pattern Select Switch))

      Disconnect the combination switch assembly (pattern select switch) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I5-2 (E) - 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 - ECM)


    1. B0024GCC03
      *a

      Rear 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
      G46-14 (PWMS) - Body ground Combination switch (PWR) pushed Below 1 Ω
      G46-14 (PWMS) - Body ground Combination switch (PWR) 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