With Manufacturer's Scan Tool
DIAGNOSIS INSPECTIONSRS Warning light check
(a) Turn the ignition switch to ACC or ON and check that the SRS warning light lights up.
(b) Check that the SRS warning light goes out after approx. 6 seconds.
HINT:
- When the ignition switch is at ACC or ON and the SRS warning light remains on or flashes, the airbag sensor assembly has detected a malfunction code.
- If, after approx. 6 seconds have elapsed, the SRS warning light sometimes lights up or the SRS warning light lights up even when the ignition switch is OFF, a short in the SRS warning light circuit can be considered likely. Proceed to "SRS warning light system malfunction" (Always lit up, when ignition switch is LOCK position) on page RS-78.
Using LEXUS hand-held tester:
(a) Hook up the LEXUS hand-held tester to the DLC1 or DLC2.
(b) Read the diagnostic trouble codes by following the prompts on the tester screen.
HINT: Please refer to the LEXUS hand-held tester operator's manual, for further details.