Reading and Clearing Diagnostic Trouble Codes

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: DTC CHECK / CLEAR

1. DTC CHECK/CLEAR (When Using the Techstream)

(a) Check for DTCs.

(1) Connect the Techstream to the DLC3.

(2) Turn the power 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 Electronically Controlled Brake System.

(b) Clear the DTCs.

(1) Connect the Techstream to the DLC3.

(2) Turn the power 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, select the trouble code data display with the clear button.

2. DTC CHECK/CLEAR (When not Using the Techstream)

(a) Check for DTCs.

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





SST : 09843-18040

Text in Illustration





(2) Turn the power switch on (IG).

(3) Observe the blinking pattern of the ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights in order to identify the DTC.

HINT
If no code appears, inspect the TC and CG terminal circuit, and ABS warning, brake warning / yellow (minor malfunction) and slip indicator light circuits.





(4) Count the number of blinks of the ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights.

HINT
* How to read DTCs:
Diagnostic trouble codes are represented by the number of blinks of a warning light. For example, code 21 would be shown by 2 blinks, a pause of 1.5 seconds, and then 1 blink.
* If one code is detected:
The light repeats the same code after a pause of 4 seconds.
* If multiple codes are detected:
The light outputs one code after another with a 2.5-second pause between each code. When all codes have been output, there is a 4-second pause and then the light begins to output the codes again.

(5) Check the details of the DTCs Electronically Controlled Brake System.

(6) 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.

(b) Clear the DTCs.

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





SST : 09843-18040

Text in Illustration





(2) Turn the power switch on (IG).

(3) Clear the DTCs stored in the ECU by depressing the brake pedal 8 times or more within 5 seconds.





(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 battery terminal or the ECU-IG NO. 2 fuse.

3. END OF DTC CHECK/CLEAR

(a) Turn the power switch on (IG).

(b) Check that the ABS warning, brake warning / yellow (minor malfunction) and slip indicator lights go off when the power switch is turned on (READY).