Brown wire comes from VCM and wire is ok.I can make alt charge if i use test light from B+ to L [...] data from instrument panel to VCM should turn it on ?? How can I tell if I have serial data to VCM. No voltage reading there with key on

Summary posted 7/24/2006

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle