System test
NOTE:
After every successful login procedure, the anti-theft immobilizer is switched free for 10 minutes, i.e. a system or function test does not make sense during this time.
- Switch ignition off for at least 5 minutes.
- Cover induction coil with a metal plate with cut-out, e.g. by placing a fitting shim washer onto the ignition lock and inserting the ignition key into the ignition lock through the hole.
or
- Disconnect electrical wire of induction coil at connector between ignition/starter switch and control module for anti-theft immobilizer.
- Start engine.
Engine must not run and immobilizer control lamp in instrument cluster must blink.
- Initiate On Board Diagnostic (OBD) program of anti-theft immobilizer using VAS 5051/5052 tester in mode "Vehicle Self-Diagnosis".
- Check DTC memory
One of the following DTCs is indicated:
01176 - Key signal too small
or
01128 - Induction coil of anti-theft immobilizer -D2-
- Erase DTC memory
- End output.