XC70 AWD L6-3.2L VIN 98 B6324S (2009)
light to indicate that the signal has been received. If sound indication is selected the buzzer will sound to indicate that the signal has been received
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When the check is complete, set the OFF/ON switch on the special tool to OFF.
The following must be carried out after repairs, checks or replacement of fibre optic wiring.
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Connect the desired connector on the MOST cable to the relevant socket on the special tool
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Select the socket which is connected by setting the SELECTOR SWITCH to position 2+0 or 2+4
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Set the OFF/ON switch on the special tool to ON. The red POWER ON lamp must light
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Activate the Infotainment system.
Hint: If the infotainment system has been activated and there is not an open-circuit in the fibre optic network, the display on the infotainment control
module (ICM) must be lit.
It is also possible to check visually if there is a light signal in the MOST cable from a control module in the network to the connector for the next control
module without switching on the ignition. This is done by connecting the special tool to the connector on the MOST cable at the relevant control module.
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Select the socket which is connected on the special tool by setting the SELECTOR SWITCH to position 2+0 or 2+4
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Disconnect the MOST cable from the next control module
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Set the OFF/ON switch on the special tool to ON. The red POWER ON lamp must light.
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Press the red button (2+0 TEST or 2+4 TEST) on the lower section of the special tool which corresponds to a connected MOST cable. The special
tool now transmits a light signal through the cable. Check that there is a red light at the next connector on the MOST cable
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When the check is complete, set the OFF/ON switch on the special tool to OFF.
Note! The visual check is not a verification of the function of the system. However the strength of the light signal must exceed a certain level for
there to be full functionality in the system.
Fibre Optic Cable Repair
Fibre Optic Cable Repair
Special tools:
951 2868 Fiber cutter See: Tools and Equipment/951 2868 Fiber Cutter
951 2869 Ferrule crimping tool See: Tools and Equipment/951 2869 Ferrule Crimping Tool
Note! The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the
essential information in the illustrations is always correct.
Information
General
The components in the infotainment system are part of an optical network, known as the MOST network. (Media Oriented System Transportation). The
network comprises fiber optics. Special connectors are used in the MOST network for fiber optics and MOST control modules, i.e. control modules that
are connected to the MOST network.
Data is transmitted via the fiber optics, for example music, in the form of light signals. The MOST network is a ring which must be unbroken for it to
work. If a fiber optic breaks or a connector is not connected, none of the infotainment system components will work. The ends of the fibers must also be
free of dirt so that the light is not obstructed.
