CONTINUOUSLY VARIABLE TRANSAXLE 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 pattern select 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

*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 / Primary.

   5. In accordance with 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)	Pattern select switch (SPORT) status	OFF or ON	OFF: Sport mode off ON: Sport mode on	-

      Result
      Result Proceed to Data display is within Normal Condition range A Data display is not within Normal Condition range B

   
   

   B

   INSPECT PATTERN SELECT SWITCH ASSEMBLY Click here

   A

2. REPLACE ECM

   
   

   1. Replace the ECM.

      for 1ZR-FE: Click here

      for 2ZR-FE: Click here

      Result
      Proceed to NEXT

   
   

   NEXT

   PERFORM INITIALIZATION Click here

3. 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 (MSW1) - 3 (MSW2) Pattern select switch on Below 1 Ω 6 (MSW1) - 3 (MSW2) Pattern select switch off 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE PATTERN SELECT SWITCH ASSEMBLY Click here

   OK

4. 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 (MSW2) - 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

5. 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 on Below 1 Ω A50-57 (PWMS) - Body ground Pattern select switch off 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

6. REPLACE ECM

   
   

   1. Replace the ECM.

      for 1ZR-FE: Click here

      for 2ZR-FE: Click here

      Result
      Proceed to NEXT

   
   

   NEXT

   PERFORM INITIALIZATION Click here