DTC Check / Clear [12/2021 - ]

HINT:

DTCs which are stored in the skid control ECU 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.
Confirmed and pending DTCs can be cleared by using the GTS. However, permanent DTCs cannot be cleared using the GTS.
After clearing confirmed DTCs using the GTS, permanent DTCs can be cleared when the system is determined to be normal for the relevant DTCs and then the universal trip is performed. 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 are met:
- There is a history that universal trip driving was performed.
- The vehicle has been judged as normal for 2 trips.
- No malfunctions are detected.

DETECTION LOGIC EXAMPLES

Pending DTC	Store condition	Malfunction detected
Pending DTC	Clear condition	Ignition switch turned to ON after normal judgment obtained in 1 driving cycle or DTCs cleared using GTS
Confirmed DTC	Store condition	Malfunction detected
Confirmed DTC	Clear condition	No malfunctions in 40 driving cycles or DTCs cleared using GTS
Permanent DTC	Store condition	Malfunction detected
Permanent DTC	Clear condition	Ignition switch is turned to ON (READY) after normal judgment obtained in 3 consecutive driving cycles or After DTCs cleared using GTS, normal judgment obtained for 2 trips and universal trip performed
MIL	ON	Malfunction detected
MIL	OFF	Ignition switch is turned to ON (READY) after normal judgment obtained in 3 consecutive driving cycles or DTCs cleared using GTS

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.
Ensure to wait at least 4 minutes between each trip.

CHECK DTC

Read the DTCs following the prompts on the GTS screen.
Chassis > Brake Booster > Trouble Codes

Chassis > Brake/EPB > Trouble Codes

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

NOTE:

The electronically controlled brake system outputs DTCs for the following system. When DTCs other than those in Diagnostic Trouble Code Chart for the electronically controlled brake system are output, refer to Diagnostic Trouble Code Chart for the relevant system.

System	Proceed to
Electric Parking Brake System	Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - ]

HINT:

GTS Display	Description
Test Failed	Shows the malfunction judgment results during the current trip.
Pending*	Shows a temporary malfunction. (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.)

*: As 2 trip DTCs do not exist for the electronically controlled brake system, current DTCs are stored simultaneously.

Check the details of the DTC(s).

CLEAR DTC (PENDING AND CONFIRMED DTC)
1. Clear the DTCs.
  Chassis > Brake Booster > Clear DTCs
  
  Chassis > Brake/EPB > Clear DTCs
2. Press the clear button.
CHECK TIME STAMP
HINT:

By checking Time Stamp, the time and order in which DTCs were stored in an ECU can be checked.
1. Perform the following steps when the data setting screen is displayed.
2. Select the systems for which to perform Health Check and check for time stamp data.
  Selectable items:
  - Powertrain
  - Chassis
  - Body
  - Store All Data
3. Select "Yes" when "Would you like to include Time Stamp Data?" is displayed.
  HINT:
  
  If "Yes" is not selected, time stamp data will not be stored.
4. After Health Check has completed, select "Time Stamp Data" to display the Time Stamp screen.
5. Select the desired system from the drop-down list on the bottom of the Time Stamp screen.
6. Check the order and time which DTCs were stored for the selected system.
CLEAR PERMANENT DTC
OUTLINE
1. After clearing confirmed DTCs using the GTS, 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 are met:
  - There is a history that universal trip driving was performed.
  - The vehicle has been judged as normal for 2 trips.
  - No malfunctions are detected.
NOTE:
When performing the following procedure, make sure that the driver door is closed and is not opened at any time during the procedure.
1. Read the DTCs following the prompts on the GTS screen.
  Chassis > Brake/EPB > Trouble Codes
  
  HINT:
  
  If "PERMANENT" in the top right of the screen displays "YES", permanent DTCs are stored.
2. Select the "Generic" tab.
3. Check if permanent DTCs are stored.
  HINT:
  
  If permanent DTCs are not output, it is not necessary to continue this procedure.
4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  Chassis > Brake/EPB > Clear DTCs
  
  NOTE:
  Do not clear the DTCs or disconnect the cable from the auxiliary battery terminal after performing this step.
5. Turn the ignition switch off and wait for 4 minutes or more.
6. 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.
  
  Fig 1: Universal Trip Driving Pattern (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: Universal Trip Driving Pattern (2 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Turn the ignition switch to ON (READY) and wait for 30 seconds or more.
  2. With the engine running, 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 ignition switch turned to ON (READY).
7. Turn the ignition switch off and wait for 4 minutes or more.
8. Turn the ignition switch to ON (READY).
9. Perform the normal judgment procedure in the respective confirmation driving pattern of each output DTC.
  HINT:
  
  Do not turn the ignition switch off by mistake during this step.
10. With the ignition switch is ON (READY) wait for 5 seconds or more.
11. Turn the ignition switch off and wait for 4 minutes or more.
12. Turn the ignition switch to ON (READY).
13. Perform the normal judgment procedure in the respective confirmation driving pattern of each output DTC.
  HINT:
  
  Do not turn the ignition switch off by mistake during this step.
14. With the ignition switch is ON (READY) wait for 5 seconds or more.
15. Turn the ignition switch off and wait for 4 minutes or more.
16. Turn the ignition switch to ON (READY).
17. Read the DTCs following the prompts on the GTS screen.
  Chassis > Brake/EPB > Trouble Codes
18. Check that the permanent DTCs have been cleared.