Wiring Manuals for your 1989 Sigma
Get the most accurate Wiring information and references in our Online Service Repair ManualIt's important to stay well-informed about your 1989 Sigma - and especially important for DIY types to have accurate wiring data.
ALLDATA provides online access to wiring diagrams with wire splice and ground locations as well as other technical information from any computer at any location. We are the industry's leading source of online factory Diagnostic and Repair Information used by 200,000+ automotive technicians everyday. Unlimited online access to this online 1989 Sigma manual can be purchased in one or five year increments, with discounts available for multiple vehicles.
I was having computer/electrical problems with my car that were a complete mystery. I purchased information for my car on ALLDATADIY.com, and now my car is running perfectly. Thank you, ALLDATA, for helping me get back on the road without having to get my car towed to a service station. - Phillip S