Without Scan Tool

a. Inspect the battery positive voltage.

Battery positive voltage: 10 - 14 V

b. Check the warning lights and indicator lights.

1. Release the parking brake pedal.
2. When the ignition switch is ON, check that the ABS warning light, Brake warning light, VSC OFF indicator light and SLIP indicator light go on for 3 Sec.

HINT:
- If the ECU stores DTC, "CHECK VSC" is displayed on the multi-information display and ABS warning light and VSC OFF indicator light are ON.
- If the check result is not normal, proceed to troubleshooting for the light circuit.

Trouble Area
ABS warning light circuit
Brake warning light circuit
VSC OFF indicator light circuit
SLIP indicator light circuit

c. In case of not using the LEXUS hand-held tester:
Check the DTC of ABS system.




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 on the combination meter.






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

Trouble Area
Tc terminal circuit
ABS warning light circuit

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

4. Codes are examples in the code table.
5. After completing the check, disconnect terminal Tc and CO 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.

d. In case of not using the LEXUS hand-held tester:
Check the DTC of VSC system.




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 multi-information display on the combination meter.

HINT:
- At this time, "VSC OK", is displayed when VSC system is in normal condition. If any DTC is detected, "VSC 31", for example, will be displayed.
- If there are 2 or more DTC, DTC will be displayed in ascending order of the number.
- If no code appears, inspect the VSC warning indicator circuit and Tc terminal circuit.

Trouble Area
Tc terminal circuit
VSC warning indicator circuit