Without Scan Tool

a. Check the indicator.
When the ignition switch is turned ON, check that the VSC warning light, VSC OFF indicator light and SLIP indicator light goes ON for 3 seconds.

HINT:
- If the ECU stores DTC, VSC warning light and VSC OFF indicator light is ON.
- If the indicator check result is not normal, proceed to troubleshooting for the VSC warning light circuit, VSC OFF indicator light circuit, and SLIP indicator light circuit.

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







Check the DTC
1. Using SST, connect terminals Tc and E1 of DLC1.

SST 09843-18020

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

HINT:
- If no code appears, inspect the diagnostic circuit or VSC warning light circuit.
- As an example , the blinking patterns for normal code and code 31 and 32 are shown on the left.

4. Codes are explained in the code table.
5. After completing the check, disconnect terminals Tc and E1 of DLC1 and turn OFF the display.

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