Preparation for Test: 1. Review 11, 20, 22

Actual values (functional condition) Various door lock switches including engine hood, trunk lid and glove box. Ignition system Service brake ATA anti-tow protection button ATA status indication Menu driven via HHT Four displays are possible: , , , . Contrary to DTC memory, actual values are updated continuously, even during diagnosis. This allows intermittent faults to be recognized by moving/shaking components, connectors or wiring harnesses. Activation The following components can be activated: Alarm horn (H3) or Alarm siren with auxiliary battery (H3/1) Headlamps or hazard flasher ATA status indication Menu driven via HHT Preparation for Test: 1. Fuses ok, 2. Battery voltage 11 - 14 V. 3. Ignition: ON 4. Connect the Hand-Held Tester (HHT) to X11/4, according to diagram, see section 0.