C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

possible security system issue

Thread Tools
 
Search this Thread
 
Old Sep 29, 2019 | 12:13 PM
  #1  
Gotta92vette's Avatar
Gotta92vette
Thread Starter
3rd Gear
 
Joined: Sep 2019
Posts: 3
Likes: 0
Default possible security system issue

hi! My name is Rory, i just recently purchased a 92 c4 corvette. it was running perfectly until I decided to change my kenwood single din stereo with a kenwood double din. (i really wanted to have the hands free bluetooth). Anyways I wired it using the harness and it was working but not installed yet. As i put it in my security system went off and now I have absolutely no power what so ever. Anyone ever encountered this? Its really baffling.
Reply
Old Sep 29, 2019 | 01:30 PM
  #2  
Kevova's Avatar
Kevova
Le Mans Master
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Default

Manuals or wiring diagrams? Aftermarket or factory alarm? Check fuse boxes for 12v on all fuses.
Reply
Old Sep 29, 2019 | 02:16 PM
  #3  
Gotta92vette's Avatar
Gotta92vette
Thread Starter
3rd Gear
 
Joined: Sep 2019
Posts: 3
Likes: 0
Default

Originally Posted by Kevova
Manuals or wiring diagrams? Aftermarket or factory alarm? Check fuse boxes for 12v on all fuses.
its all factory. all the fuses seem ok. there is no power to anything . notta. battery is new and ok.
Reply
Old Sep 29, 2019 | 03:53 PM
  #4  
Kevova's Avatar
Kevova
Le Mans Master
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Default

Did you check fuses in rectangular boxes near battery? Factory alarm doesn't disable fuse blocks.
Reply
Old Sep 29, 2019 | 04:59 PM
  #5  
Gotta92vette's Avatar
Gotta92vette
Thread Starter
3rd Gear
 
Joined: Sep 2019
Posts: 3
Likes: 0
Default

i checked the ones in the passenger side. i dont see any near the battery compartment. however i did put it on a charger and the charger didnt find the battery. tried the neighbors. same. So i took off the pos and the neg terminals and the battery started to charge. there must be a short or a bad ground somewhere but I only changed the stereo and it was working. hmmm.
Reply
Old Sep 29, 2019 | 06:38 PM
  #6  
Kevova's Avatar
Kevova
Le Mans Master
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Default

You need access to 8A - Wiring diagrams of FSM.
Reply
Old Oct 3, 2019 | 11:29 AM
  #7  
ctmccloskey's Avatar
ctmccloskey
Safety Car
Supporting Lifetime
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: May 2001
Posts: 4,721
Likes: 1,626
From: Fairfax Virginia
Default

A good working Fire Extinguisher is always a smart thing to have around as well when you have a major short in a Corvette Don't connect the battery to the car while you have a short like that. No power at the fuse panel?

There is a tool called the Power Probe which would really help you find the problem. It alows you to supply battery power or ground to the item the tip is touching using a rocker switch. An awesome tool for finding electrical issues in Corvettes!

Find your fusible links and verify that they are still "good". I don't know where they would be on a newer version of the C4. On my 1988 C4 they get their power directly from the battery (+) and are designed to protect the electrical system. They burn through the outer wire occasionally, you need to verify that they are still good. They are probably not far from your battery.

Best regards,
Chris
Reply

Get notified of new replies

To possible security system issue





All times are GMT -4. The time now is 08:02 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE