does shorting the parking lights cause alarm prob?

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=6276
Printed Date: July 20, 2025 at 4:14 AM

Topic: does shorting the parking lights cause alarm prob?

Posted By: netZ
Subject: does shorting the parking lights cause alarm prob?
Date Posted: December 05, 2002 at 12:57 PM

Just wondering if any alarms out there are still susceptible to this?

Replies:

Posted By: chasesaccessori
Date Posted: December 05, 2002 at 1:04 PM

Only the ones that do not fuse the wire from the alarm to the light. Most nowadays use the fuse for the alarm to protect itself. others actually have a fuse right there on the wire.

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(owner/installer)
Chase's Accessories
Ridgecrest, CA
in business since 92

Posted By: floaterr
Date Posted: December 07, 2002 at 1:05 PM

I installed an Exaclibur on my 99 blazer and I thought it and the dome light were fused but I must have missed it. The dome lights stopped working. Went in and found the harness melted at the light pin! Guess the dome pulled to much juice. ANYWAY'S! From that point on I recomend relaying lights and sirens. Lights cause you never know when a trailer might be attached and pull to much juice and the siren cause half the time I install no less then 3. Also I put the relay in a more accessable place then the brain and can change fuses faster.

Posted By: netZ
Date Posted: December 07, 2002 at 5:46 PM

i can understand the dome light wire melting if the vehicle had a positive door trigger wire. other vehicles that have a negative door trigger then this doesn't apply. i was curious to know if there were any alarms still susceptible to the grounding the parking light wire. would it make sense to put a 3 amp diode on the positive parking wire off the alarm brain before tapping it to the vehicle's positive parking light wire?

good suggestion regarding the relays.

netZ

Posted By: securinu
Date Posted: December 07, 2002 at 7:11 PM

just use a fuse it is cheaper and a true circuit break if someone does short the lights.

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