Without Scan Tool

a. Check the indicator light.




1. Turn ignition switch ON.
2. Check that height control indicator light and height control OFF indicator light go on for 2 seconds.

If the indicator does not light, inspect the height control OFF indicator light circuit and height control indicator light circuit

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




1. Check the battery positive voltage.
2. Check that the generator is generating electricity when engine running.
3. Check that other system is normal.
4. Using SST, connect terminals between Tc and E1 of DLC1.
SST 09843-18020

5. Turn ignition switch ON.




6. Read the DTC output by height control OFF indicator light on the combination meter.

HINT:
- If no code appears, inspect the Tc terminal circuit or height control OFF indicator light circuit.




- As an example, the blinking patterns for normal code, 11 and 31 are as shown on the illustration.

7. Codes are explained in the code table.
8. After completing the check, disconnect terminals Tc and E1, and turn off the display.

HINT: In the event of 2 or more malfunction codes, indication will begin from the smaller numbered code and continue in order to the larger.