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Home >> Volvo >> 2007 >> C70 Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Electronics - Design And Function - 4 Of 4 >> Standard Central Locking System (2008-2013) >> System Description/Design >> Lock Units Side Doors
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Lock Units Side Doors

Fig 1: Identifying Lock Units Side Doors
GLL140148Courtesy of VOLVO CARS CORPORATION

The lock units are installed in the doors and are directly connected to the door control module in the relevant door.

There are different versions of the lock units, depending on the configuration of the lock motors.

There are two versions of the lock units in the front doors with lock motors for:

The central locking lock motor locks the door.

The door control modules can only unlock the doors on receipt of a command from the central electronic module (CEM). In addition to the lock motors, the lock units contain up to three contract breakers depending on the configuration:

The lock motors have built in overheating protection which prevents the motor from activating if there is a risk of the motor getting too hot.