Compustar CS4900 Issue, 2010 Ford Fusion

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=145769
Printed Date: May 05, 2025 at 5:50 PM

Topic: Compustar CS4900 Issue, 2010 Ford Fusion

Posted By: tlower
Subject: Compustar CS4900 Issue, 2010 Ford Fusion
Date Posted: November 09, 2019 at 10:59 AM

Just installed a Compustar cs4900 remote start in a 2010 Ford Fusion and I can not get the Blade to read the key (keeps flashing red). I have double and triple checked all the wiring, reset and reprogrammed the module several times. I checked the voltage at the pats power wire and I'm getting 4.97v with the key inserted. I've always seen 0v or 12v nothing in between like this. Any suggestions?

Replies:

Posted By: eguru
Date Posted: November 10, 2019 at 9:02 AM

Which wire are you referring to as "the pats power wire"? What colour is it?

Posted By: tlower
Date Posted: November 10, 2019 at 9:30 AM

eguru] wrote:

Which wire are you referring to as "the pats power wire"? What colour is it?

Lt Blue/Black wire

Posted By: eguru
Date Posted: November 10, 2019 at 5:11 PM

IDK what your BU/BK wire is for. There is a BU/GY wire (key sense).
Sorry, I guess I can't help you on this.

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