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 (SPORT switch), 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.

PROCEDURE

1. Click here

   READ VALUE USING GTS (POWER MODE SW)

   
   

   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.

      Table 2. Engine and ECT

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      Pattern Switch (PWR/M)	Pattern select switch (SPORT) status	OFF or ON	OFF: Pattern select switch (SPORT) not pushed ON: Pattern select switch (SPORT) pushed	-

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

   
   
   • AClick here
   • BClick here
2. Click here

   REPLACE ECM

   
   

   1. Replace the ECM.

      Click here

      Result
      Proceed to NEXT

   
   
   • NEXT

     PERFORM INITIALIZATIONClick here

3. Click here

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

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPLACE PATTERN SELECT SWITCH ASSEMBLYClick here

4. Click here

   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 F28-1 - Body ground Always Below 1 Ω

   2. Install the pattern select switch assembly.

      Click here

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

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

5. Click here

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

   
   

   1. Disconnect the A58 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition A58-57 (PWMS) - Body ground Pattern select switch on Below 1 Ω Pattern select switch off 10 kΩ or higher

   3. Connect the A58 ECM connector.

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

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

6. Click here

   REPLACE ECM

   
   

   1. Replace the ECM.

      Click here

      Result
      Proceed to NEXT

   
   
   • NEXT

     PERFORM INITIALIZATIONClick here