СИСТЕМА ЗАПУСКА И ОСТАНОВА (для моделей с 2WW), Diagnostic DTC:P1862

DESCRIPTION

There are 2 clutch pedal switches for the clutch pedal. The clutch switch assembly (for upper) is used for stopping and restarting of the engine by stop and start control. During the stop and start control, the clutch start switch assembly (for lower) is used only when the clutch switch assembly (for upper) is stuck on or the fail-safe function is activated.

CONFIRMATION DRIVING PATTERN

1. CONFIRMATION AFTER TROUBLESHOOTING

   Tech Tips

   
   

   • If the cable is disconnected from the negative (-) battery terminal, stop and start control is prohibited until refresh charge is completed. In this case, drive the vehicle approximately 5 to 60 minutes until refresh charge is completed and stop and start control operation is permitted.

   • Allow the engine to idle for 3 minutes after the engine warms up and check that the engine speed is within 50 rpm of the target idle speed.

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON and turn the GTS on.

   3. Clear the DTCs.

      Click here

      
      Powertrain > Stop and Start > Clear DTCs

   4. Start the engine.

   5. 

      *a	Clutch Switch Signal
      *b	ON
      *c	OFF
      *d	1 second or more

      Fully depress the clutch pedal for 1 second or more. Release the clutch pedal and wait for at least 1 second.

   6. Repeat the previous step 3 times.

   7. Check that no DTCs are output.

      Click here

      
      Powertrain > Stop and Start > Trouble Codes

2. STOP AND START SYSTEM OPERATION CHECK

   Tech Tips

   If the cable is disconnected from the negative (-) battery terminal, stop and start control is prohibited until refresh charge is completed. In this case, drive the vehicle approximately 5 to 60 minutes until refresh charge is completed and stop and start control operation is permitted.

   
   

   1. Start the engine and warm it up.

   2. Turn the air conditioning system off.

   3. Drive the vehicle at 7 km/h (4.3 mph) or more.

      CAUTION:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

   4. Stop the vehicle, move the shift lever to neutral and release the clutch pedal.

   5. Allow the engine to stop by stop and start control

   6. Depress the clutch pedal and start the engine.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

PROCEDURE

1. READ VALUE USING GTS (CLUTCH UPPER SW AND CLUTCH LOWER 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 / Stop and Start / Data List / Clutch Upper SW and Clutch Lower SW.

      
      Powertrain > Stop and Start > Data List

      Tester Display
      Clutch Upper SW
      Clutch Lower SW

   5. Depress the clutch pedal and read the values displayed on the GTS.

      OK
      Tester Display Condition Normal Condition Clutch Upper SW Fully Depressed OFF Clutch Lower SW Fully Depressed ON Clutch Upper SW Fully Released ON Clutch Lower SW Fully Released OFF

      Result
      Proceed to NG OK

   
   

   OK

   USE SIMULATION METHOD TO CHECK Click here

   NG

2. INSPECT CLUTCH START SWITCH ASSEMBLY (FOR LOWER)

   
   

   1. Inspect the clutch start switch assembly (for lower).

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE CLUTCH START SWITCH ASSEMBLY (FOR LOWER) Click here

   OK

3. INSPECT CLUTCH SWITCH ASSEMBLY (FOR UPPER)

   
   

   1. Inspect the clutch switch assembly (for upper).

      Click here

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE CLUTCH SWITCH ASSEMBLY (FOR UPPER) Click here

   OK

4. CHECK HARNESS AND CONNECTOR (ENGINE START AND STOP ECU - CLUTCH START SWITCH ASSEMBLY (FOR LOWER))

   
   

   1. Disconnect the A66 engine stop and start ECU connector.

   2. Disconnect the A4*1 or F2*2 clutch start switch assembly (for lower) connector.

      
      

      • *1: for LHD

      • *2: for RHD

   3. w/ Entry and Start System:

      Disconnect the G82 certification ECU (smart key ECU assembly) connector.

   4. w/o Entry and Start System:

      Disconnect the G4 ignition or starter switch assembly connector.

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

      Standard Resistance
      for LHD: Tester Connection Condition Specified Condition A66-17 (CLL) - A4-2 Always Below 1 Ω A66-17 (CLL) - Body ground Always 10 kΩ or higher A4-2 - Body ground Always 10 kΩ or higher
      for RHD: Tester Connection Condition Specified Condition A66-17 (CLL) - F2-2 Always Below 1 Ω A66-17 (CLL) - Body ground Always 10 kΩ or higher F2-2 - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

5. CHECK HARNESS AND CONNECTOR (ENGINE START AND STOP ECU - CLUTCH SWITCH ASSEMBLY (FOR UPPER))

   
   

   1. Disconnect the A66 engine stop and start ECU connector.

   2. Disconnect the A1*1 or F1*2 clutch switch assembly (for upper) connector.

      
      

      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD: Tester Connection Condition Specified Condition A66-11 (CLU) - A1-2 Always Below 1 Ω A66-11 (CLU) - Body ground Always 10 kΩ or higher A1-2 - Body ground Always 10 kΩ or higher
      for RHD: Tester Connection Condition Specified Condition A66-11 (CLU) - F1-2 Always Below 1 Ω A66-11 (CLU) - Body ground Always 10 kΩ or higher F1-2 - 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