Diagnosis System

DIAGNOSIS SYSTEM

1. DESCRIPTION
a. The ECM controls the vehicle's immobilizer system functions. immobilizer system data and the DTCs can be read through the vehicle's DLC3. In some cases, a malfunction may be occurring in the immobilizer system even though the security indicator light is not illuminated. When the system seems to be malfunctioning, use the intelligent tester to check for a malfunctions and perform repairs.