STOP AND START SYSTEM Neutral Position Switch Circuit

DESCRIPTION

The engine stop and start ECU uses the park/neutral position switch assembly installed to the automatic transaxle assembly*1 or continuously variable transaxle assembly*2 to detect when the shift lever is in P or N.


WIRING DIAGRAM

B0057JBE02

PROCEDURE


  1. READ VALUE USING GTS (NEUTRAL SWITCH)


    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 / Stop and Start / Data List / Neutral Switch.

    5. In accordance with the display on the GTS, read the Data List.


      Powertrain > Stop and Start > Data List
      Tester Display
      Neutral Switch
      OK
      Tester Display Condition Normal Condition
      Neutral Switch Shift lever in P or N ON
      Shift lever not in P or N OFF
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    1. Inspect the park/neutral position switch assembly.


      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY for U661E: Click here for U661F: Click here for K114: Click here for K114F: Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)


    1. Disconnect the A38 engine stop and start ECU connector.

    2. Disconnect the C14 park/neutral position switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A38-21 (STA) - C14-9 (L) Always Below 1 Ω
      A38-17 (CLL) - C14-4 (B) Always Below 1 Ω
      A38-21 (STA) - Body ground Always 80 to 180 Ω
      A38-17 (CLL) - Body ground Always 10 kΩ or higher
      C14-9 (L) - Body ground Always 80 to 180 Ω
      C14-4 (B) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ENGINE STOP AND START ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR