Replacing software

NOTE: If possible, read off the programmed data before replacing software.

Fig 1: Identifying Ignition OFF

GLL101045

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off.
The upper electronic module (UEM) has registered a fault in the configuration file.

The fault may be due to a program fault. The software must be replaced.

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Refer to Reading off programmed values