With Manufacturer's Scan Tool

Check the DTC






HINT: If a malfunction occurs in the speed sensor or in the stop light switch, etc. during cruise control driving, the ECU actuates AUTO CANCEL of the cruise control and turns ON and OFF the CRUISE MAIN indicator light to inform the driver of a malfunction. At the same time, the malfunction is stored in memory as a diagnostic trouble code.




USING LEXUS HAND-HELD TESTER

a. Hook up the LEXUS hand-held tester to the DLC3.
b. Monitor the ECU data by following the prompts on the tester screen.

HINT: LEXUS hand-held tester has a "Snapshot" function which records the monitored data.
Please refer to the LEXUS hand-held tester operator's manual for further details.