Control Module

Fig 1: Identifying Keyless Vehicle Module (KVM) (Only Vehicles With The Keyless Locking System)

Courtesy of VOLVO CARS CORPORATION

The keyless vehicle module (KVM) is under the front left-hand seat. The control module controls and monitors the keyless entry system. The keyless vehicle module (KVM) uses the external and internal antennas to communicate with the remote control and to control the quick locks in the doors.

The keyless vehicle module (KVM) activates the internal or external antennas depending on the input signals and commands it receives. The control module also checks the identity of the key.

The keyless vehicle module (KVM) is part of the immobilizer system. It works with the central electronic module (CEM) to check key identities.

The keyless vehicle module (KVM) must be programmed with various codes before it can function in the system. For further information, see: DOWNLOADING SOFTWARE AND REPLACING THE CONTROL MODULE 

The two control modules communicate over the LS-CAN.

The keyless vehicle module (KVM) contains 4 relays. The control module uses these relays to select the antennas to be activated. See the table below.

Keyless vehicle module (KVM) is 30-supplied via the Central electronic module (CEM) and grounded in the body. The Keyless vehicle module (KVM) is always supplied with power as long as the vehicle is powered.