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Home >> Mercedes Benz >> 1992 >> 300SD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Ignition Switch/Steering Lock >> Anti-Theft & Central Locking System - 140 Chassis >> Basic Knowledge >> Relocking radio/infrared control module, function - GF80.30-P-4019A
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Relocking radio/infrared control module, function - GF80.30-P-4019A

MODEL 129, 140 as of 1.6.97 

To avoid unintentional unlocking the vehicle is relocked by the radio frequency/infrared DAS control module (N54/4). The vehicle is relocked after unlocking with the remote control when:

There is no feedback by the turn signal system. The ATA is activated by the relocking function.