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I have a 2007 Sierra 2500HD (K2500) Duramax. After the 'Service Trailer Brake System' DIC message appeared I changed the Controller and checked both fuses. The message persists. I am not able to find the ITBC on any of the schematics I have and not on the internet, either. Does anyone have one or can you point me to one?
Found out recently that the integrated trailer brake controller found in other GM trucks and suvs is not available in an Escalade. Can't remember for sure when the ITBC was first introduced into other GM trucks (2009?).
If there are any Escalade owners on this forum, lets hear your thoughts. Would you benefit from having the ITBC? Have you had to add an aftermarket brake controller. Does it seem like this feature should be included automatically in a premium vehicle? Or does nobody tow with an Escalade?
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