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Volume 4.1

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LOCATION:    13.6 Anti-Theft Alarm (ATA)   >   13 Diagnosis - Actual Values/Activations


Diagnosis - Actual Values/Activations

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.