POWER STEERING SYSTEM(w/ Variable Flow Control Solenoid Valve) Drive Mode Select Switch Circuit

DESCRIPTION

The characteristics of the electronic throttle, PPS and automatic transmission change by operating the drive mode select switch (integration control & panel assembly).

WIRING DIAGRAM

A01X9UDE02

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check for DTCs.

      Result
      Result Proceed to
      CAN communication system DTCs are not output A
      CAN communication system DTCs are output (for LHD) B
      CAN communication system DTCs are output (for RHD) C

    B

    GO TO CAN COMMUNICATION SYSTEM (HOW TOPROCEED WITH TROUBLESHOOTING) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM (HOW TOPROCEED WITH TROUBLESHOOTING) Click here

    A

  2. CHECK HARNESS AND CONNECTOR


    1. Turn the engine switch off.

    2. Disconnect the V8 drive mode select switch (integration control & panel assembly) connector.

    3. A01X325E01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Drive mode select switch (integration control & panel assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      V8-5 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT DRIVE MODE SELECT SWITCH (INTEGRATION CONTROL & PANEL ASSEMBLY)


    1. Inspect drive mode select switch (integration control & panel assembly).


      OK
      Drive mode select switch (integration control & panel assembly) is normal.
      Result
      Result Proceed to
      OK A
      NG for AB60F B
      for AE80F C

    B

    REPLACE DRIVE MODE SELECT SWITCH (INTEGRATION CONTROL & PANEL ASSEMBLY) Click here

    C

    REPLACE DRIVE MODE SELECT SWITCH (INTEGRATION CONTROL & PANEL ASSEMBLY) Click here

    A

  4. CHECK HARNESS AND CONNECTOR


    1. Reconnect the V8 drive mode select switch (integration control & panel assembly) connector.

    2. Disconnect the A38*1 or A52*2 ECM connector.


      • *1: except 1VD-FTV (w/o DPF) (for RHD)

      • *2: for 1VD-FTV (w/o DPF) (for RHD)

    3. A01X9Y4E02
      Text in Illustration
      *A for 3UR-FE
      *B for 1UR-FE
      *C for 1VD-FTV
      *D except 1VD-FTV (w/o DPF) (for RHD)
      *E for 1VD-FTV (w/o DPF) (for RHD)
      *a

      Front view of wire harness connector

      (to ECM)

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

      Standard Resistance
      for 3UR-FE
      Tester Connection Condition Specified Condition
      A38-34 (PWMS) - Body ground SPORT mode switch being turned and held Below 50 Ω
      A38-34 (PWMS) - Body ground SPORT mode switch not turned 10 kΩ or higher
      A38-49 (SPCN) - Body ground NORMAL mode switch being pushed and held Below 50 Ω
      A38-49 (SPCN) - Body ground NORMAL mode switch not pushed 10 kΩ or higher
      for 1UR-FE
      Tester Connection Condition Specified Condition
      A38-39 (PWMS) - Body ground SPORT mode switch being turned and held Below 50 Ω
      A38-39 (PWMS) - Body ground SPORT mode switch not turned 10 kΩ or higher
      A38-22 (SPCN) - Body ground NORMAL mode switch being pushed and held Below 50 Ω
      A38-22 (SPCN) - Body ground NORMAL mode switch not pushed 10 kΩ or higher
      for 1VD-FTV (w/ DPF)
      Tester Connection Condition Specified Condition
      A38-39 (PWMS) - Body ground SPORT mode switch being turned and held Below 50 Ω
      A38-39 (PWMS) - Body ground SPORT mode switch not turned 10 kΩ or higher
      A38-43 (SPCN) - Body ground NORMAL mode switch being pushed and held Below 50 Ω
      A38-43 (SPCN) - Body ground NORMAL mode switch not pushed 10 kΩ or higher
      for 1VD-FTV (w/o DPF) (for LHD)
      Tester Connection Condition Specified Condition
      A38-39 (PWMS) - Body ground SPORT mode switch being turned and held Below 50 Ω
      A38-39 (PWMS) - Body ground SPORT mode switch not turned 10 kΩ or higher
      A38-43 (SPCN) - Body ground NORMAL mode switch being pushed and held Below 50 Ω
      A38-43 (SPCN) - Body ground NORMAL mode switch not pushed 10 kΩ or higher
      for 1VD-FTV (w/o DPF) (for RHD)
      Tester Connection Condition Specified Condition
      A52-39 (PWMS) - Body ground SPORT mode switch being turned and held Below 50 Ω
      A52-39 (PWMS) - Body ground SPORT mode switch not turned 10 kΩ or higher
      A52-43 (SPCN) - Body ground NORMAL mode switch being pushed and held Below 50 Ω
      A52-43 (SPCN) - Body ground NORMAL mode switch not pushed 10 kΩ or higher
      Result
      Result Proceed to
      OK for 1UR-FE A
      for 3UR-FE B
      for 1VD-FTV C
      NG D

    A

    REPLACE ECM Click here

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    D

    REPAIR OR REPLACE HARNESS OR CONNECTOR