Without Scan Tool

a. Check the warning lights and buzzer.




1. Release parking brake pedal.
2. When the ignition switch is turned ON, check that the ABS warning light, BRAKE warning light, VSC warning light, VSC OFF indicator light and SLIP indicator light goes on for approx. 3 seconds.
3. When depressing the brake pedal repeatedly it may turn on the BRAKE warning light and buzzer.

HINT:
- When the parking brake is applied or the level of the brake fluid is low, the BRAKE warning light is lit.
- If the ECU stores DTC, ABS warning light, VSC warning light and VSC OFF indicator light is ON.
- If the indicator check result is not normal, proceed to troubleshooting for the light circuit.

Trouble Area
ABS warning light circuit
BRAKE warning light circuit
VSC warning light circuit
VSC OFF indicator light circuit
SLIP indicator light circuit
Skid control buzzer

b. In case of not using LEXUS hand-held tester:
Check the DTC




1. Using SST, connect terminals Tc and CG of DLC3.
SST 09843-18040

2. Turn the ignition switch ON.
3. Read the DTC from the ABS warning light or VSC warning light on the combination meter.

HINT:
- If no code appears, inspect the diagnostic circuit, ABS warning light circuit or VSC warning light circuit.

Trouble Area
Tc terminal circuit
VSC warning light circuit
ABS warning light circuit




- As an example, the blinking patterns for the normal code and codes 11 and 21 are shown.

4. Codes are explained in the code table on page
5. After completing the check, disconnect terminal Tc and CG of DLC3, and turn off the display.

If 2 or more malfunctions are detected at the same time, the lowest numbered DTC will be displayed 1st.