silver08 Posted November 9, 2008 Report Share Posted November 9, 2008 Looking for some help in completing the bypass process. I have the Z3 installed and using the GMOS module for Onstar in an '08 Enclave. When it was installed, the GMOS harness was connected to the Parking brake sensor wire on the Z3 harness. Do I disconnect those two wires, tape off the one coming out of the GMOS unit and ground the Z3 wire as part of the two wire bypass? Quote Link to post Share on other sites
MPTonyT Posted March 3, 2009 Report Share Posted March 3, 2009 That is correct. Quote Link to post Share on other sites
jimmy 2 times Posted March 24, 2009 Report Share Posted March 24, 2009 depending on the vehicle, you may need to use a relay on the GMOS module for your acc Quote Link to post Share on other sites
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