Nasty electrical shorting issue (ECU-IG fuse) with culprit found - ClubLexus - Lexus Forum Discussion


SC- 1st Gen (1992-2000)

Nasty electrical shorting issue (ECU-IG fuse) with culprit found

Reply
 
 
 
Thread Tools Search this Thread
Old 01-05-10, 10:23 PM   #1
TO_SC300
Driver School Candidate
Thread Starter
 
Join Date: Feb 2003
Location: New York
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
Default Nasty electrical shorting issue (ECU-IG fuse) with culprit found

Recording my recent experience with a short in my electrical system, in case anyone is searching the forums like I do so often.

So I started the car one day and four fuses blew at once. In the engine compartment (left), the two 15A fuses for the headlights and in the left kick panel, the TAIL 15A and ECU-IG 15A. Luckily nothing critical because it was a helluva cold day out, but the ABS light came on, and I lost: headlights, tail lights, power steering, power windows, moon roof, Cruise Control, telescopic tilt steering, and the power antenna. I replaced all of the fuses, but one kept blowing once I turned the key to "ON", the ECU-IG fuse. Nasty little bugger, it's responsible for power to non-critical ECU's in the vehicle. This includes: power steering, power windows, moon roof, Cruise Control, telescopic tilt steering, and the power antenna.

After methodically disconnecting system after system, I found the issue. Water had pooled in the driver's side bottom pocket of the trunk, the drainage tube plugging the hole which would let the water escape. Still don't know how the water got there, looks like it might be a leak in the seal around the power antenna. In any case, sitting in that pool of water was the T16 and T17 connectors, which are for the Telephone Transceiver and Speaker relay. I pulled those systems ages ago so I simply snipped the T16 connector which has the live power in it. The connector has shorted and a hole had burned through the plastic.

So if your ECU-IG fuse keeps blowing, have a look in your trunk in those bottom 'pockets'. Best of luck!
TO_SC300 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
RX450h- 2012 model- Australia- Dead Memory seat butto amitmunjal Hybrid Technology 2 02-01-17 03:32 AM
A/C and Radio Screens and Buttons Not Responsive jeengy IS - 2nd Gen (2006-2013) 10 01-20-17 02:28 PM
2006 GS430 No Clock Navi/Climate Button Not Working Please Help!!! rxmpvibes GS - 3rd Gen (2006-2011) 7 03-31-16 06:22 AM
ok SC400 GODS HELP ME nurvcom Performance & Maintenance 5 07-22-13 05:18 AM
ECU-IG fuse keeps blowing. bodydrager Performance & Maintenance 2 02-17-12 08:23 AM


Tags
15a , 430 , 470 , ecu , ecuig , electrical , electricalshortage , fuse , is250 , lexus , sc , short , shorts , steering , telephone

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -7. The time now is 11:53 AM.


Copyright © 2000-2017 Internet Brands, Inc. All Rights Reserved We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: