With Generic Scan Tool

INDICATOR CHECK





(a) Turn the ignition switch on while pressing the A/C control AUTO switch and n/F SW simultaneously.





(b) Check that all the indicators light up and go off at 1 second intervals 4 times in succession.

HINT:
- After the indicator check is ended, the diagnostic trouble code check begins automatically.
- Press the OFF switch when desiring to cancel the check mode.

DTC CHECK USING LEXUS HANDHELD TESTER





(a) Hook up the LEXUS hand-held tester to the DLC3.
(b) Read the diagnostic trouble codes by following the prompts on the tester screen.
Please refer to the LEXUS hand-held tester operator's manual for further details.