DTC Check / Clear

WARNING: This page is about a different car, the 2009 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

DTC CHECK / CLEAR (When Using the Techstream)
1. Check for DTCs.
  1. Connect the Techstream to the DLC3.
  2. Turn the engine switch on (IG).
  3. Turn the Techstream on.
  4. Read the DTCs following the prompts on the Techstream screen. Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
  5. Check the details of the DTCs. Refer to DIAGNOSTIC TROUBLE CODE CHART .
2. Clear the DTCs.
  1. Connect the Techstream to the DLC3.
  2. Turn the engine switch on (IG).
  3. Turn the Techstream on.
  4. Operate the Techstream to clear the codes. Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
  5. According to the display on the Techstream, clear the trouble code data display using the clear button.

DTC CHECK / CLEAR (When not Using the Techstream)

Check for DTCs.

Using SST, connect terminals TC and CG of the DLC3.

Fig 1: Identifying DLC3 Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- SST: 09843-18040
Turn the engine switch on (IG).

Observe the blinking pattern of the ABS warning light and read the multi-information display in order to identify the DTC.

HINT:

If no code appears, inspect the TC and CG terminal circuit, and ABS warning and VSC warning (master caution indicator light and multi-information display) light circuits.

Trouble Area	See Procedure
TC and CG terminal circuit	Refer to TC and CG Terminal Circuit
ABS warning light circuit (Remains on)	Refer to ABS Warning Light Remains ON
ABS warning light circuit (Does not come on)	Refer to ABS Warning Light does not Come ON
VSC warning light (Master caution indicator light and multi-information display) circuit (Remains on)	Refer to VSC Warning Light Remains ON
VSC warning light (Master caution indicator light and multi-information display) circuit (Does not come on)	Refer to VSC Warning Light does not Come ON

As an example, the illustration below shows the blinking patterns of the normal system code and trouble codes 11 and 21 for the ABS warning light, and display of normal system code and trouble code 43 for the VSC on the multi-information display.

Fig 2: Identifying Normal System Code Blinking Pattern & Trouble Code Blinking Pattern
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Check the details of the DTCs. Refer to DIAGNOSTIC TROUBLE CODE CHART .
HINT:

Illustrations may differ from the actual screen displayed depending on the specifications of the vehicle and customized settings.
After completing the check, disconnect terminals TC and CG of the DLC3 to turn off the display.
If 2 or more DTCs are detected at the same time, the DTCs will be displayed in ascending order.

Clear the DTCs.
1. Using SST, connect terminals TC and CG of the DLC3.
  
  Fig 3: Identifying DLC3 Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  - SST: 09843-18040
2. Turn the engine switch on (IG).
3. Clear the DTCs stored in the ECU by depressing the brake pedal 8 times or more within 5 seconds.
  
  Fig 4: Depressing Brake Pedal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Check that the warning light indicates a normal system code.
5. Remove SST from the terminals of the DLC3.
  HINT:
  
  The DTCs cannot be cleared by disconnecting the negative cable from the battery terminal or the ECU-IG RH fuse.

END OF DTC CHECK/CLEAR
1. Turn the engine switch on (IG).
2. Check that the ABS warning and master caution indicator lights go off within approximately 3 seconds after turning the engine switch on (IG).