Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - Reply to Topic
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > Car Audio, SYNC, MyFord Touch & Electronics > troubleshoot stock wiring harness

Car Audio, SYNC, MyFord Touch & Electronics The Forum for the Ford Focus audiophiles. The place to chat about automobile sound systems, security systems, or show off your I.C.E.!
Sponsored By: GT Sound Control


Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Thread: troubleshoot stock wiring harness Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
01-11-2013 04:36 PM
oderus1671 i have a digital multimeter, yes. thanks!
01-09-2013 06:35 PM
freemind Do you have a multimeter? A test light?
01-09-2013 05:24 PM
oderus1671 how would I go about checking the fuse block that my radio gets 12v constant power (Fuse 31)? I suspect that there may be no power to that fuse on the panel.
01-06-2013 05:33 PM
Joseph Baker ya but you would still want to do those voltage drops to pin point the problem if the problem is in the wiring and not internal
01-06-2013 04:16 PM
oderus1671 so, to check the +12 wire from the panel (fuse 31) to the radio, do I put the + lead on the +12v harness pin and the - lead on the harness ground pin? Im thinking I should be able to do a continuity test from the fuse to the harness, just to be sure that the wire is indeed connected. any thoughts? thanks JB for the response!
01-06-2013 03:40 PM
Joseph Baker well idk what the HU is but to check a circuit you need to put your meter leads in the right spots, black in the common/ground and your red in the votls ohms. then you set your meter to volts dc (direct current). now what you have to do is check the circuit in chunccks checking to see if there is power. so you put your red in on the first part of the circuit after the fuse and put the black on a kgg ((known good ground) any clean open steal connected to the frame or chassis or the frame/chassis. an open bolt screwed to the body or the best if possible reach the battery negative). now you check all the chuncks and when you dont have power is where your problem is and by doing that you find the problem by process of elimination but remember this most electronics on a vehicle have a 5 volts reference and the rest of the vehicle is 12-13 volts except the alternator which is much higher
01-06-2013 03:09 PM
oderus1671
troubleshoot stock wiring harness

I have a 2003 blaupunkt HU that has no memory, as stated in another thread, but noone seems to respond. So, I need to take the bull by the horns and troubleshoot it alone. I have a feeling there is either a dead +12v circuit going to the HU, or the HU is shot. I think this because #31 fuse is not blown, but it retains no memory. How do I use a multimeter to check the harness? I would like to verify that theres power coming into the HU before going further. Also, should I be checking the fuse panel circuit as well? Not sure how to do this...Im not very electrically saavy, but I have a grasp on the basic principles. So, is there a guide on how to troubleshoot these wiring harnesses? Thanks in advance!

Posting Rules
You may post new threads
You may 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


All times are GMT -5. The time now is 07:37 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat