With Scan Tool
INPUT SIGNAL CHECK (TEST MODE CHECK)HINT: This function check if signals from the steering sensor, stop light switch, etc. are being input normally to the ECU.
Using the LEXUS hand-held tester, check the input signal.
1. Turn the ignition switch OFF.
2. Set each of the check items in the table below to the condition in Operation (A) on the previous page.
3. Hook up the LEXUS hand-held tester to the DLC3.
4. Turn the ignition switch ON.
5. Select the SIGNAL CHECK mode on the LEXUS hand-held tester.
6. Each of the check items is set to the condition in Operation (B).
HINT: Individual checking of each signal in step (5) can be performed.
7. Read the DTC by following prompts on the tester screen.
HINT: Please refer to the LEX US hand-held tester operator's manual for further details.