СИСТЕМА БЕССТУПЕНЧАТОЙ ТРАНСМИССИИ (для моделей с 8NR-FTS) 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

*a	SPORT Switch (Combination Switch Assembly)

PROCEDURE

1. 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 / Data List.

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

      
      Powertrain > Engine > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      Power Mode SW	SPORT switch (combination switch assembly) status	OFF or ON	ON: Switch being pushed OFF: Switch not being pushed	-

      
      Powertrain > Engine > Data List

      Tester Display
      Power Mode SW

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

   
   

   B

   INSPECT COMBINATION SWITCH ASSEMBLY Click here

   A

2. REPLACE ECM

   
   

   1. Replace the ECM.

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

   PERFORM INITIALIZATION Click here

3. 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

4. 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

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

   
   

   1. Disconnect the A173 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition A173-36 (PWMS) - Body ground Switch being pushed Below 50 Ω A173-36 (PWMS) - Body ground Switch not being pushed 10 kΩ or higher

   3. Connect the A173 ECM connector.

      Result
      Proceed to OK NG

   
   

   NG

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

   OK

6. REPLACE ECM

   
   

   1. Replace the ECM.

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

   PERFORM INITIALIZATION Click here