DTC Check / Clear [10/2023 - ]

HINT: 

• DTCs which are stored in the ECM can be displayed on the GTS. The GTS can display the confirmed, pending and permanent DTCs.
• If a malfunction is detected during the current driving cycle, confirmed and permanent DTCs are stored.
• Some DTCs are not stored if the ECM does not detect the same malfunction again during a second consecutive driving cycle. However, such malfunctions, detected on only one occasion, are stored as pending DTCs.
• Confirmed and pending DTCs can be cleared by using the GTS or by disconnecting the cable from the negative (-) battery terminal. However, permanent DTCs cannot be cleared using either of these two methods.
• After clearing current DTCs using the GTS (or by disconnecting the cable from the negative (-) battery terminal), permanent DTCs can be cleared when the universal trip is performed and then the system is determined to be normal for the relevant DTCs. The driving pattern to obtain a normal judgment is described under the "Confirmation Driving Pattern" for the respective DTC.

  To clear permanent DTCs, all of the following conditions must be met:

  • There is a history that universal trip driving was performed.
  • The vehicle has been judged as normal for 1 trip. (not for misfire and fuel system DTCs)
  • No malfunctions are detected.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT: 

• Obtaining a normal judgment and performing a universal trip driving pattern can be done in the same driving cycle or in different driving cycles.
• It is unnecessary to obtain a normal judgment if the output DTCs are misfire or fuel system DTCs.

1. CHECK DTC 
   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 / Trouble Codes.

      Powertrain > Engine > Trouble Codes 

   5. Check the DTC(s) and Freeze Frame Data, and then write them down.

      HINT: 

      GTS Display	Description
      Test Failed	Shows the malfunction judgment results during the current trip.
      Pending	Shows the malfunction judgment results up to now. (Indicates the possibility of a malfunction when no DTC is confirmed.)
      Confirmed	Shows the DTCs confirmed up to now. (The number of current trips differs for each DTC.)

   6. Check the details of the DTC(s).

      Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2023 - ]

2. CLEAR DTC (Pending and Confirmed DTC) 
   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 / Trouble Codes.
   5. Clear the DTCs.

      Powertrain > Engine > Clear DTCs 

3. CLEAR DTC (Pending and Confirmed DTC without using GTS) 
   1. Perform either of the following operations:
      NOTE:

      • After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

        Refer to BEFORE DISCONNECTING BATTERY [12/2021 - ]

      • When disconnecting and reconnecting the battery.

        Refer to WORK PROCEDURE [12/2021 - ]

        HINT: 

        When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

        Refer to AUTOMATIC LEARNING CHART [12/2021 - ]

      1. Disconnect the cable from the negative (-) battery terminal for more than 1 minute.
      2. Remove the EFI MAIN NO. 1 fuse and ETCS fuse from the No. 2 engine room relay block and junction block assembly located inside the engine compartment for more than 1 minute.
4. CLEAR PERMANENT DTC 

   OUTLINE 

   1. After clearing current DTCs using the GTS (or by disconnecting the cable from the negative (-) battery terminal), permanent DTCs can be cleared when the universal trip is performed and then the system is determined to be normal for the relevant DTCs. The driving pattern to obtain a normal judgment is described under the "Confirmation Driving Pattern" for the respective DTC.
   2. To clear permanent DTCs, all of the following conditions must be met:
      • There is a history that universal trip driving was performed.
      • The vehicle has been judged as normal for 1 trip. (not for misfire and fuel system DTCs)
      • No malfunctions are detected.
   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 / Trouble Codes.

      Powertrain > Engine > Trouble Codes 

      HINT: 

      If "PERMANENT" in the top right of the screen displays "YES", permanent DTCs are stored.

   5. Select the "Generic" tab.
   6. Check if permanent DTCs are stored.

      HINT: 

      If permanent DTCs are not output, it is not necessary to continue this procedure.

   7. Clear the DTCs.

      Powertrain > Engine > Clear DTCs 

      NOTE:

      Do not clear the DTCs or disconnect the cable from the battery terminal after performing this step.

   8. Perform the universal trip.

      HINT: 

      The driving pattern to obtain a normal judgment and the universal trip driving can be performed consecutively in the same driving cycle.

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      1. Start the engine and wait for 30 seconds or more.
      2. Drive the vehicle at 40 km/h (25 mph) or more for a total of 5 minutes or more.
         WARNING:

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

         HINT: 

         It is possible to complete the drive pattern even if the vehicle decelerates to less than 40 km/h (25 mph) during the driving cycle provided that the vehicle is driven at 40 km/h (25 mph) or more for a total of 5 minutes.

      3. Allow 10 minutes or more to elapse from the time the engine started.
   9. Turn the ignition switch off and wait for 2 minutes or more.
   10. Turn the ignition switch to ON.
   11. Enter the following menus: Powertrain / Engine / Trouble Codes.

       Powertrain > Engine > Trouble Codes 

   12. Check that the permanent DTCs have been cleared.

       HINT: 

       If permanent DTCs are not output, it is not necessary to continue this procedure.

   13. Perform the normal judgment procedure in the respective confirmation driving pattern of each output DTC.

       HINT: 

       • Confirmation driving patterns do not need to be performed for misfire and fuel system DTCs.
       • Do not turn the ignition switch off by mistake during this step.
   14. Start the engine and wait for 5 seconds or more.
   15. Turn the ignition switch off and wait for 2 minutes or more.
   16. Turn the ignition switch to ON.
   17. Enter the following menus: Powertrain / Engine / Trouble Codes.

       Powertrain > Engine > Trouble Codes 

   18. Check that the permanent DTCs have been cleared.