CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM(for 1ZR-FAE) 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 SPORT switch (combination switch assembly), the park/neutral position switch and other various sensors, the ECM switches the shift control solenoid valves on and off, and controls the transaxle gear ratio.

WIRING DIAGRAM

for Hatchback, Wagon

*a	SPORT Switch (Combination Switch Assembly)

for Sedan

*a	Pattern Select Switch Assembly

PROCEDURE

1. READ VALUE USING GTS (PATTERN SWITCH (PWR/M))

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Enter the following menus: Powertrain / Engine and ECT / Data List.

   5. According to the display on the GTS, read the Data List.

      
      Powertrain > Engine and ECT > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      Pattern Switch (PWR/M)	SPORT mode switch status	OFF or ON	OFF: SPORT mode off ON: SPORT mode on	-

      
      Powertrain > Engine and ECT > Data List

      Tester Display
      Pattern Switch (PWR/M)

      Result
      Result Proceed to Data List values are normal A Data List values are not normal B

   
   

   B

   CHECK VEHICLE CONDITION Click here

   A

2. REPLACE ECM

   
   

   1. Replace the ECM.

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

   PERFORM INITIALIZATION Click here

3. CHECK VEHICLE CONDITION

   
   

   1. Choose the model to be inspected.

      Result
      Result Proceed to for Hatchback, Wagon A for Sedan B

   
   

   B

   INSPECT PATTERN SELECT SWITCH ASSEMBLY Click here

   A

4. INSPECT COMBINATION SWITCH ASSEMBLY

   
   
   1. 

      *a	Component without harness connected (SPORT Switch (Combination Switch Assembly))

      Remove the SPORT switch (combination switch assembly).

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition 8 - 3 Switch being pushed Below 50 Ω 8 - 3 Switch not being pushed 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE COMBINATION SWITCH ASSEMBLY Click here

   OK

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

   
   

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

      Standard Resistance
      Tester Connection Condition Specified Condition E136-3 - Body ground Always Below 1 Ω

   2. Install the SPORT switch (combination switch assembly).

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION SWITCH ASSEMBLY - BODY GROUND)

   OK

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

   
   

   1. Disconnect the A50 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition A50-57 (PWMS) - Body ground Switch being pushed Below 50 Ω A50-57 (PWMS) - Body ground Switch not being pushed 10 kΩ or higher

   3. Connect the A50 ECM connector.

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION SWITCH ASSEMBLY - ECM)

   OK

7. REPLACE ECM

   
   

   1. Replace the ECM.

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

   PERFORM INITIALIZATION Click here

8. INSPECT PATTERN SELECT SWITCH ASSEMBLY

   
   
   1. 

      *a	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 Condition Specified Condition 6 - 3 Pattern select switch pushed in Below 1 Ω 6 - 3 Pattern select switch not pushed in 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE PATTERN SELECT SWITCH ASSEMBLY Click here

   OK

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

   
   

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

      Standard Resistance
      Tester Connection Condition Specified Condition E83-3 - Body ground Always Below 1 Ω

   2. Install the pattern select switch assembly.

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - BODY GROUND)

   OK

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

    
    

    1. Disconnect the A50 ECM connector.

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

       Standard Resistance
       Tester Connection Condition Specified Condition A50-57 (PWMS) - Body ground Pattern select switch pushed in Below 1 Ω A50-57 (PWMS) - Body ground Pattern select switch not pushed in 10 kΩ or higher

    3. Connect the A50 ECM connector.

       Result
       Proceed to OK NG

    
    

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - ECM)

    OK

11. REPLACE ECM

    
    

    1. Replace the ECM.

       Click here

       Result
       Proceed to NEXT

    
    

    NEXT

    PERFORM INITIALIZATION Click here