AUTOMATIC TRANSAXLE SYSTEM Shift Paddle Switch Circuit

DESCRIPTION

Moving the shift lever to S enables the shift range to be selected. The shift range can be selected by operating the "+" or "-" shift paddle switch.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. READ VALUE USING GTS (SPORT SHIFT SWITCH STATUS)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the engine switch on (IG).

   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
      Sport Shift Up SW	Sport shift up switch status	ON or OFF	ON: Shift lever held in "+" or "+" shift paddle switch operated OFF: Shift lever not held in "+" and "+" shift paddle switch released	-
      Sport Shift Down SW	Sport shift down switch status	ON or OFF	ON: Shift lever held in "-" or "-" shift paddle switch operated OFF: Shift lever not held in "-" and "-" shift paddle switch released	-

      
      Powertrain > Engine > Data List

      Tester Display
      Sport Shift Up SW
      Sport Shift Down SW

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

   
   

   A

   CHECK FOR INTERMITTENT PROBLEMS Click here

   B

2. CHECK HARNESS AND CONNECTOR (SHIFT PADDLE SWITCH CIRCUIT)

   
   

   1. Disconnect the A23 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition A23-38 (SFTU) - Body ground "+" (Up shift) shift paddle switch operated and held Below 13 Ω "+" (Up shift) shift paddle switch not operated 10 kΩ or higher A23-37 (SFTD) - Body ground "-" (Down shift) shift paddle switch operated and held Below 13 Ω "-" (Down shift) shift paddle switch not operated 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

   NG

3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)

   
   

   1. Disconnect the K22 spiral cable sub-assembly connector.

   2. Disconnect the A23 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition A23-38 (SFTU) - K22-8 (SUP) Always Below 1 Ω A23-37 (SFTD) - K22-1 (SDN) Always Below 1 Ω A23-38 (SFTU) or K22-8 (SUP) - Body ground Always 10 kΩ or higher A23-37 (SFTD) or K22-1 (SDN) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)

   OK

4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)

   
   

   1. Disconnect the K22 spiral cable sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition K22-2 (ECC) - Body ground Always Below 1 Ω

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND)

   OK

5. INSPECT SPIRAL CABLE SUB-ASSEMBLY

   
   

   1. Inspect the spiral cable sub-assembly.

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

   OK

6. INSPECT SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

   
   
   1. 

      *a	Component without harness connected (Shift Paddle Switch LH (Transmission Shift Switch Assembly))

      Remove the shift paddle switch LH (transmission shift switch assembly).

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition A-1 (SDN) - A-2 (ECC) "-" (Down shift) shift paddle switch operated and held Below 13 Ω "-" (Down shift) shift paddle switch not operated 10 kΩ or higher A-1 (SDN) - A-3 (ECC1) "-" (Down shift) shift paddle switch operated and held Below 13 Ω "-" (Down shift) shift paddle switch not operated 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWITCH ASSEMBLY) Click here

   OK

7. INSPECT SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY)

   
   
   1. 

      *a	Component without harness connected (Shift Paddle Switch RH (Transmission Shift Switch Assembly))

      Remove the shift paddle switch RH (transmission shift switch assembly).

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition B-1 (SUP) - B-2 (ECC) "+" (Up shift) shift paddle switch operated and held Below 13 Ω "+" (Up shift) shift paddle switch not operated 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE SHIFT PADDLE SWITCH RH (TRANSMISSION SHIFT SWITCH ASSEMBLY) Click here

   OK

8. INSPECT NO. 1 SWITCH WIRE

   
   
   1. 

      *a	Front view of wire harness connector (to Spiral Cable Sub-assembly)

      Install the transmission shift switch assembly.

      Click here

   2. Disconnect the z4 No. 1 switch wire connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition z4-2 (SUP) - z4-3 (ECC) "+" (Up shift) shift paddle switch operated and held Below 13 Ω "+" (Up shift) shift paddle switch not operated 10 kΩ or higher z4-4 (SDN) - z4-3 (ECC) "-" (Down shift) shift paddle switch operated and held Below 13 Ω "-" (Down shift) shift paddle switch not operated 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

   NG

   REPLACE NO. 1 SWITCH WIRE Click here