Description of On-Board Diagnostics

DIAGNOSIS SYSTEM




ECM controls the function of immobiliser on this vehicle. Data of the immobiliser or DTC can be read from DLC3 of the vehicle. When a trouble occurs on immobiliser, MIL does not light up but DTC inspection is performed. Therefore when there seems to be a trouble on immobiliser, use LEXUS hand-held tester or SST to check and troubleshoot it.