2001 crown vic rear defrost

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=118898
Printed Date: July 21, 2025 at 4:37 AM

Topic: 2001 crown vic rear defrost

Posted By: nessus
Subject: 2001 crown vic rear defrost
Date Posted: December 28, 2009 at 4:43 PM

Hi I have an 2001 Crown Vic ex police car and had a Viper 5901 installed by the dealer. The dealer did not install the trunk release (the form here helped me find the correct wire and the wiring for the relay) and the defrost. I live in Canada and would like the defrost to work. Can someone help me with the wire color and its location and if a relay is need? Also if the wire needs to be cut?

Thanks in advance

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Nessus

Replies:

Posted By: t&t tech
Date Posted: December 28, 2009 at 6:03 PM

TRNK/HTCH RELEASE|purple / YELLOW |5wi|drivers door harness

Says five wire so you need a single pole double throw relay wired like this

Pin87 and 86- twelve volts fused at ten amps

Pin 85- To the negative trigger from alarm

Pin 87@ - Cut the purple / YELLOW and connect the side from the switch here

Pin 30 - To the side of the wire that goes to the solenoid.

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COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF. PSALMS 37:5

Posted By: nessus
Date Posted: December 28, 2009 at 6:20 PM

That works perfect. Do you know how to do the defrost?

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Nessus

Posted By: t&t tech
Date Posted: December 28, 2009 at 8:46 PM

What do you mean how? I just described it above, the negative trigger is the blue/white status out from the starter!

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COMMIT YOUR WAY TO JEHOVAH AND HE WILL ACT IN YOUR BEHALF. PSALMS 37:5

Posted By: i am an idiot
Date Posted: December 28, 2009 at 9:03 PM

I think he is asking for a wire color for the defrost wire.

Posted By: chadwa2003
Date Posted: December 28, 2009 at 10:41 PM

it is blue/orange at the switch no relay required -1 sec pulse needed to turn defrost on

Posted By: nessus
Date Posted: December 30, 2009 at 11:23 AM

Thanks that worked. This is a great help.

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Nessus

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