Remote Receiver Module (RRX)

Fig 1: Identifying Remote Receiver Module

Courtesy of VOLVO CARS CORPORATION

The remote receiver module (RRX) is on the top of the steering column in front of the driver information module (DIM).

The remote receiver module (RRX) is connected to the central electronic module (CEM) via serial communication (LIN). The remote receiver module (RRX) receives the signals transmitted from the remote key and forwards them to the central electronic module (CEM). When a remote key is in the starter module, the central electronic module (CEM) ignores all messages from the Remote Receiver Module (RRX). This prevents the central locking system from locking if a button on another remote key is unintentionally pressed in.

The remote receiver module (RRX) checks for a signal from a remote key approximately 6 times per second.

The receiver is powered from the central electronic module (CEM) and grounded in the body.

NOTE: The market in Japan has Remote Keyless Entry (RKE) for model year 2008-2009 regardless of whether the vehicle is equipped with keyless entry system or not. When the vehicle is not equipped with keyless entry system, the Remote Keyless Entry (RKE) communicates directly with Central electronic module (CEM). If the vehicle is equipped with keyless entry system, the Remote Keyless Entry (RKE) communicates via Keyless Vehicle Module (KVM).