Question about 2003 Harley Davidson FLHTCUI Electra Glide Ultra Classic

1 Answer

2003 ultra classic electrical short???

The speedo bounces and the stereo cuts in and out.... the voltage output from altenator seems fine. When this happens it will not idle properly... I am trying to trace the wiring cause it seems more like a short than a bad component...
Could use a lil help in diagnosing this problem.


Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 2,030 Answers

You are exactly is a short..I have seen this many times, my Ultra did the same thing....i found my short in the main harness under the tank.

Posted on Sep 09, 2009

Testimonial: "he points me in right direction to look.....Thanks"


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Speedo bounces and stereo cuts in and out when I hit a bump in the road

Hi Gordonbuum, take a ride over to your local dealers service department I'm sure they will be happy to offer advice and assistance concerning your issue. Have a nice day

Dec 02, 2012 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

Speedo bounces and the stereo cuts in and out and seem like its a loose wire or something

It's possible some wires have rubbed through inside the fairing. The usual spot to check in near the two silver inner fairing brackets. While your in there, check the connections at both the radio and the speedo.

Dec 02, 2012 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

2003 Ultra Classic fuel injected model. Generally runs well, but at times (seems when it's been run hard for an hour at least) I see the volts go way up around 16 or 17; it normally reads 14.5 volts Soon...

Your Voltage should never get that high. Anything over 15volts is bad news. Try Testing your Regulator. First do a Bleed Test.
Be sure regulator is connected to battery. Unplug the stator connector.
Use a trouble light and clip it to a good ground and the other to the regulator pins, one at a
time. If light comes on regulator is bad.

Apr 03, 2011 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

Speedometer quit working i checked the sensor and it came out clean

My speedo went out while riding. It would bounce up and down then stopped completely. The odometer still had power but would register no miles. A local mechanic suggested to check the battery cables. While this seemed odd to me, I checked and found them loose. After tightening them up the speedo and odometer worked fine. Apparently the voltage connection to the speedo was hit and miss. So far everything is working great.

Mar 07, 2011 | 2001 Harley Davidson FLHRCI Road King...

1 Answer

01 ultra .... speedo starts bouncing then lights fuse blows?

Possible regulator fault causing battery voltage to exceed 16 Volts.
I would check the battery voltage while the engine is running.

Jan 19, 2011 | 2001 Harley Davidson FLHTCUI Electra Glide...

1 Answer

2005 Ultra Classic ,Speedo Cuts Out Which In Turn Cuts Out Cruise Control, And Turn Signals Wont Shut Off,And At Idle Bike Engin Will Stall,But Will Start Up . This Is An Intermiten Problem

I believe the turn sigs, speedo and cruise are all controlled in part at least by a module under the fairing. It may need replacement or it could just be a loose wire. Sounds more like a loose wire plug or bundle, if intermittent.

Jun 10, 2010 | 2005 Harley Davidson FLHTCUI Electra Glide...

1 Answer

The voltage meter bounces from 15 to 11 or 12 then back to 15. won't idle when this happens. Went totally dead until I took the seat off and moved the wire bundles, then things started working fine again....

First check the grounds for all the wires, if you look under the seat you will see a number attached to the frame..well a ground bar. Then check and make sure all your connectors are tight. If you still are having the problem you will have to move the wires one at a time at several places to ascertain which one is the issue. There is no magic for locating a short unfortunately. sorry, hope this helps.


Oct 20, 2009 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

2003 Ultra Classic. Above 2000RPM, the volt meter gauge pegs past 16, the odometer blinks, the speedo jumps back and forth, the red engine light comes on and the radio cuts in and out. At idle or below...

Dont do that, your voltage regulator is faulty. It is in the alternator. Max charging voltage should be 14.2 and min 13.6v. Chk battery water level. but get an alternator 4 sure

Jul 08, 2009 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

2003 Ultra shuts off while riding

how many lights are you running? try disconnecting the battery and hooking up a shunt with a volt meter or a current meter inline. then check the current with different accessories or everything running. If you have a big load and stereo amp you may need to upgrade the charging system and the Circuit Breaker or try a aftermarket CB.
It happened once to me, riding slow, new pavement, very hot day, spot lights and stereo amp on.
Have a new CB on order but, put on another 4000 miles without another problem????

Jun 29, 2009 | 2003 Harley Davidson FLHTC Electra Glide...

3 Answers


This has to be a blown fuse. If it happened slowley you lost your altenator or battery connection.

Jan 07, 2009 | 2003 Harley Davidson FLHTCUI Electra Glide...

Not finding what you are looking for?
2003 Harley Davidson FLHTCUI Electra Glide Ultra Classic Logo

375 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4521 Answers


Level 3 Expert

4339 Answers


Level 3 Expert

76051 Answers

Are you a Harley Davidson Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides