Engine Immobiliser System (For Hatchback) How To Proceed With Troubleshooting

Vehicle Interior. Yaris. Ncp93, 131
Theft Deterrent Keyless Entry. Yaris. Ncp93, 131

  1. VEHICLE BROUGHT TO WORKSHOP

  2. INSPECT BATTERY VOLTAGE

  3. CRANK ENGINE FOR MORE THAN 10 SECONDS

  4. CHECK FOR DTC*

  5. PROBLEM SYMPTOMS TABLE

  6. OVERALL ANALYSIS AND TROUBLESHOOTING*

  7. ADJUST, REPAIR OR REPLACE

  8. CHECK FOR DTC*

Engine Immobiliser System (For Hatchback) -- How To Proceed With Troubleshooting


HINT:
  1. Use these procedures to troubleshoot the engine immobiliser system.
  2. *: Use the Techstream.
  3. If the ignition switch cannot be turned to ON, communication with the Techstream can be performed by connecting the Techstream to the vehicle and turning a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and vehicle begins.


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.INSPECT BATTERY VOLTAGE
      Standard voltage:
      11 to 14 V
      If the voltage is below 11 V, recharge or replace the battery before proceeding.
      HINT:
      A simple method to determine whether the battery is depleted is to operate the horn.

    NEXT


    3.CRANK ENGINE FOR MORE THAN 10 SECONDS

      NEXT


      4.CHECK FOR DTC*

      1. Check for DTCs and note any codes that are output (YARIS_NCP93 RM000001TCQ01OX.html).

      2. Based on the DTCs output above, proceed to each diagnostic procedure.

        Result
        Result
        		Proceed to
        DTC is not output
        		A
        SFI system DTC is output
        		B
        Engine immobiliser system DTC is output
        		C



      		B.
      GO TO SFI SYSTEM (YARIS_NCP93 RM000000PD90QDX.html)

      		C.
      GO TO DIAGNOSTIC TROUBLE CODE CHART (YARIS_NCP93 RM000001TCA01TX.html)
      A


      5.PROBLEM SYMPTOMS TABLE

      1. Refer to Problem Symptoms Table (YARIS_NCP93 RM000001WOZ01NX.html).

        Result
        Result
        		Proceed to
        Fault is not listed in problem symptoms table
        		A
        Fault is listed in problem symptoms table
        		B



      		B.
      Go to step 7
      A


      6.OVERALL ANALYSIS AND TROUBLESHOOTING*

      1. Data List / Active Test (YARIS_NCP93 RM000001TCS01KX.html).

      2. Terminals of ECU (YARIS_NCP93 RM000002X2W01CX.html).


      NEXT


      7.ADJUST, REPAIR OR REPLACE

        NEXT


        8.CHECK FOR DTC*

        1. Clear the DTCs (YARIS_NCP93 RM000001TCQ01OX.html).

        2. Check for DTCs (YARIS_NCP93 RM000001TCQ01OX.html).

          HINT:
          Before checking for DTCs, perform the "DTC Output Confirmation Operation" of each diagnostic procedure (YARIS_NCP93 RM000001TCA01TX.html).
          Result
          Result
          		Proceed to
          DTC is not output
          		A
          Engine immobiliser system DTC is output
          		B


        		B.
        GO TO DIAGNOSTIC TROUBLE CODE CHART (YARIS_NCP93 RM000001TCA01TX.html)
        A

        END