Initial Inspection and Diagnostic Overview

On Board Diagnostic (OBD), Function

The electronic anti-theft immobilizer has extensive On Board Diagnostic (OBD) capabilities. If malfunctions occur in any of the system components, corresponding Diagnostic Trouble Codes (DTC) are stored in the DTC memory of the anti-theft immobilizer.

Before performing any troubleshooting or inspection, always begin by checking for DTCs using the On Board Diagnostic (OBD) program. DTCs stored in memory are retrieved/checked with VAS 5051 or VAS 5052 in mode "Guided Fault Finding".