Cd Changer: Function

WARNING: This page is about a different car, the 2006 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: CD Changer - Communication Diagram

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: CD Changer - Circuit Diagram

Courtesy of SAAB-SCANIA OF AMERICA, INC.

The CD changer is powered separately (+30) from fuse 9 to pin 6 in the CD changer connector.

When the audio system has been activated, the CD changer will read the "wake-up" information from the head unit on pins 5 and 11 on the bus. The CD changer is then activated (switched on).

The sound signal (line outputs) from the CD changer to the head unit is supplied via:

pins 3 and 8 for the left-hand channel;
pins 2 and 7 for the right-hand channel.

The CD changer functions are controlled by commands from the head unit via the bus.

See TEST VALUES, CD CHANGER CONNECTIONS .

IMPORTANT: This Service Manual does not cover the normal operation of the audio system. Detailed information on its operation is given in the Owner's Manual.