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V50 L5-2.4L VIN 39 B5244S7 (2005)

Relays and Modules > Relays and Modules - Lighting and Horns > Trailer Lighting Module > Component Information > Testing and Inspection > Reading and Clearing Diagnostic Trouble Codes > Page 1189

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Trailer Lighting Module: Programming and Relearning

Downloading software and replacing the control module

A new trailer module (TRM) is not preprogrammed. New software must always be downloaded.
New software can be downloaded into previously installed control modules.
When downloading new software a P/N must be entered. This must be done to obtain the correct software and full operation of the control module. The
P/N corresponds to the type of socket used on the cable harness for the tow hitch.

Relays and Modules > Relays and Modules - Lighting and Horns > Trailer Lighting Module > Component Information > Testing and Inspection > Reading and Clearing Diagnostic Trouble Codes > Page 1189

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