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Home >> Chevrolet >> 1999 >> S10/T10 P/U 2WD L4-2.2L VIN 4 >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Body Control Module >> Description and Operation >> Circuit Description >> Door Lock/Unlock Switch Function
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Door Lock/Unlock Switch Function

The driver door LOCK/UNLOCK switch and the passenger door LOCK/UNLOCK switch are inputs to the BCM. The BCM will command the driver door unlock relay to unlock the drivers door according to the state of the relevant switch.