Question about 2003 Harley Davidson FLSTC Heritage Classic

2 Answers

Fuel Pump(EFI)and lights non-functional, ignition o.k.

All fuses I know of are o.k.-bike will fire on starter fluid. Trouble started with a dead battery, but when I recharged, a series of flashes appeared on the panel light-happened only once. Did I accidentally activate some sort of anti-theft circuitry?

Posted by on

  • 2 more comments 
  • lecturn_2000 Dec 11, 2008

    O.K., sorry about the brief description. Basically, after I let the bike's battery run down and tried to restart, I noticed a series of light flashes on the console. HD is equipped with an anti-theft device which disables the electronic fuel pump-I think the flashes were an error code indicating the ECM had lost a code or disabled the circuitry which controls the pump. (I did recharge the battery after trying to start with a low charge. The starter turns the engine over just fine, BUT the fuel pump does not operate-no sound, as is customary, and no gas on the plugs. The problem is not ignition related, as the bike starts and runs for a couple of seconds on starter fluid. So...if this is a correct analysis of the problem, I need to restore that ECM to its former state. I had hoped that simply recharging the battery would do the trick, but no luck. Harley dealerships have a gizmo they call a "Scanalyzer" which would probably tell someone in a minute if a "run" code needs to be restored, but, of course, I need to get the bike to a dealer for this one. I'm confident the problem is not mechanical- the bike ran flawlessly prior to sitting for a month or more w.o. being started. Trying to start with a low battery was not a good idea, I'd have to say. I do have a list of the error codes and a method of disabling the ECM (obtained from another site), but your input would most certainly be welcome. Thanks in advance,

  • Ifixitall Mar 14, 2009

    No power to fuel pump after sitting for a few months and tried to start with no/low fuel.  Ran for a few seconds (rough) and then nothing.  Cranks fine.  Battery was disconnected and charged.  Battery is good, all fuses good.  Traced power everywhere with the schematic.  All is good except power to fuel pump fuse which comes from the System relay.  Removed relay and verify it works fine.  ECM was disconnected as part of tracing the voltage.  Not sure if I need to somehow rest the ECM.  Used key FOB to set/unset the security system.  I'm thinking the ECM has disabled the fuel pump.  Pretty sure that might be the problem.  Anyone able to confirm this and how to re-enable the fuel pump circuitry.  Not really addressed in the owners manual or service manual.

  • Toyota Ed May 11, 2010

    I have sent your request to Benimur and Rselvy. One of those two can help you out.

  • Toyota Ed May 11, 2010

    Contact expert Rselvy for a good solution, he is great on motorcyles.


2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert whose answer got voted for 20 times.

  • Expert
  • 83 Answers

They do have the scanalyzer and it also has the ability of resetting your ECM back to operating condition. By default there is a tamper device in the ignition that will disable the bike. To my knowledge you must take it to a dealer to have the computer reset. The reason being is if you could DIY then there would be no reason to have the anti - theft device. Sorry for the bad news but you are right on target with whaat is wrong. Now for a work around in the meantime, perhaps you can buy a electric fuel pump and hard wire it from your battery, bypass the factory electronic one and use the new one until you can get the bike to the shop for the quick fix. It only takes them a few minutes to fix it. I would take your registration and proof of ownership because they are mandated by law to verify you are the owner. At least where I live they must do it.
Good luck!

Posted on Dec 12, 2008

  • Rob Selvy
    Rob Selvy Dec 12, 2008

    I sent this gentleman an answer last night. Let me know if this helped him or if he needs further assistance.


  • 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.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers

Hi and welcome to FixYa,

Appreciate the headsup Toyota ED. I had a discussion with an HD rider/shop owner here in my country and with your indulgence, may I share his thoughts and my inputs:

  • if it were alarm induced power shutdown to the fuel pump, most likely the starter button will also not work (depends on the model/version/region of intended use);
  • there was a TSB (Technical Service Bulletin) for the upgrade of the fuel pump. The updates would have a letter "A" after the part number;
  • there is a feature called "Storage Mode" involving the use of signal light switches and the key FOB. It might have been inadvertently activated;
  • if it were an alarm induced problem, there would be no spark and would be audible;
  • often found issue with similar symptoms is a corroded fuel pump relay or its terminals/connectors. Might as well clean the entire fuse/relay box and apply electrical grease.
And agree with TE that Rselvy would be in a better position to be of more information.

Good luck and Thank you for using FixYa. Happy Holidays.

Posted on Dec 12, 2008

2 Suggested Answers

  • 269 Answers

SOURCE: Fuel Pump(EFI)and lights non-functional, ignition o.k.

Check your relay for the fuel pump, make sure you are getting power to fuel pump connector (outside of tank). Check for fuel flow when pump is on, ( remove tank to fuel rail line from intake side)be carefull this results in a good fuel stream that may go everywhere. Oh yeah and no smoking. Hope this heps as it sounds like the pump is not getting poweror you have a blockage somewhere.


Posted on Aug 16, 2009

  • 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


A little more information is needed here. Is the bike turning over? Is the starter motor turning the engine over but not starting? Is it sputtering or coughing or backfiring?

Was it running and then just stopped? has it been sitting for a while and now won't start?

Engines need fuel, air, compression and spark to fire. Try the following. Try to start it and then:

1. pull the spark plugs. Are they wet? can you smell gas? If not you probably are not getting fuel to the engine for it to start. This bike probably has fuel injection. On many FI bikes, when you turn it on you can hear the fuel pump turn on. do you hear that? Look at the fuse box and see if you have a blown fuse for any critical functions such as fuel pump, ignition, etc.

How do the spark plugs look? Are they corroded and black and burned looking? Fouled spark plugs. Try replacing them. If they are whitish and look as if the metal as eroded away your engine is running lean and you need new plugs but also need to address running too lean or you will burn up your engine.

2. If spark plugs are wet you are getting gas. hold the base of the spark plug against metal such as the engine and press the starter. You should see a spark on the plug if it is properly grounded. If you don't see a spark then either your plugs are bad or you aren't getting spark due to a dead battery or a problem between the battery and the spark plug such as fuse box or an issue with chip that controls the engine.

3. How old is the battery? If you are having battery issues you probably can't run the starter but you might be having issues there as well.

4. If the bike is sputtering and backfiring it is probably a timing issue. I don't know your model of bike but I am pretty sure the timing is controlled by a chip. That may have issues or again, maybe a fuse that controls elements of the ignition system has blown. Are there any wires that have broken or have exposed metal that could be shorting? Any of the leads to the FI system come undone?

May 06, 2014 | Yamaha Motorcycles

1 Answer

2003 Fatboy Electrical Issues

Hi Dee, and the usual suspects are:
1.Ignition/Light Key Switch not in IGNITION position.
2.Engine Stop switch in the OFF position.
3.Discharged battery, loose or corroded connections check negative cable at BOTH ends. (solenoid chatters).
4. Bank Angle Sensor tripped and Ignition/Light Key Switch not cycled to Off and then back to on.
5. Starter control circuit, relay or solenoid faulty.
6. Electric starter shaft pinion gear not engaging or over-running clutch slipping.
7. Security alarm not disarming
For a prime suspect please visit website below and good Luck.
Big Twin Carb EFI DTC Intructions codes Harley Davidson Forums Harley...

Apr 10, 2013 | 2003 Harley Davidson FLSTF Fat boy

1 Answer

Bmw k75c fuelpump fault &or remove

Hi, Tonyhickey52 if your bike has been sitting idle for months or years and you did not do any pre-storage maintenance I feel your pain it will probably have a dead battery and not want to start or if it starts it will idle and run poorly, here are the following steps necessary to complete in order to get your bike back to an acceptable running condition.
1. If your battery was 3 years or older when you last had the bike running you should replace it.
2. If you believe your battery might still be serviceable remove it from the bike and put it on a 1 or 2 amp trickle charger for 24 hours. If it is the old lead acid type with visible cells and acid levels fill each cell to the top line with distilled water and replace the caps, run the vent tube into a plastic or styrofoam cup, any cells that are cloudy/milky replace the battery.
3. After charging remove the leads and let the battery sit for a couple of hours then check the battery voltage with a volt meter, you should have 12.5 volts or better, any readings in the 11 volt range you need to do a proper load test on the battery and replace as necessary, any readings in the 10 volt range you have a dead cell and replace the battery.
4. Drain and flush fuel tank, google " how to clean a motorcycle gas tank" find a couple forums to view the different options available.
5. Remove your air cleaner and clean and re-oil per Mfg. specifications.
6. Remove the carburetor, disassemble and decontaminate with a carb dip or if you have EFI remove injectors and clean with carb spray and compressed air
7. Remove fuel valve and filter disassemble and clean as necessary, remove fuel lines and replace with new ones.
8. Replace spark plug with a new one and check for spark.
For more information about your issue please visit the websites below. Good luck and have a nice day.
BMW K75S fuel pump removal
BMW K75s restoration fuel tank clean and repair part 3 Fuel filter...
BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW
K75 Rider Manual English PDF Useful to K100 owners as well BMW K75 K100 K1...

Jan 07, 2012 | BMW K 75 S Motorcycles

1 Answer

2005 harley davidson fxdli not starting. looks like everything is okay but won't start... bike is cranking but start.....maybe fuel filter is clogged???? how do you tell

Hi David, remove the air cleaner twist throttle full on and spray starting fluid into intake, close throttle and try starting. If it fires up and runs for a few seconds then dies you do have a fuel filter and or pump problem. If no fire you have an ignition problem start checking all the usual suspects: trouble codes, fuses, spark plugs, plug cables, coil, ignition module, crank position sensor, map sensor ect. ect. Or you can take it to your local dealer or shop, if you are not to experienced in electrical diagnostics or you don't have the proper instruments to perform such tests. Good luck

Oct 08, 2011 | 2005 Harley Davidson FXDL - FXDLI Dyna Low...

1 Answer

No response from starter when pushing the ignition button. Have followed the trouble shooting guide provided in the service manual. A starter was pulled from a running bike, along with the starter relay....

Have you checked all your kill and safety switches... Kickstand switch, neutral switch etc? Did you test your battery for any dead cells and load capacity? Do you have any fault lights flashing? Do you have 12 volts at the solenoid and start switch with ignition on? Do you have a security system or an Immobiliser on this bike? troubleshoot these areas to start with. If all check out & still no start, let me know and we will continue with more areas to inspect. I hope this helps.

Jul 07, 2011 | 2007 Suzuki GSX-R 600

1 Answer

I have a. 2007 road king custom and when I turn the ignition switch the fuel pump starts and when I start the bike it runs alittle and then the fuse blows ...put in new fuse and run the bike 10-30 miles...

Hi Wayzach, you could have a hard/dead short that should be easy to find generally they are the easiest. Time to get out your test light and connect it to the power side of the, circuit breaker, relay or the blown fuse receiver, start by tracking the out bound wire towards the ignition switch and beyond if necessary, when the test light quits lighting you are very close to your short. For a free wiring diagram please visit the website below. Good luck and have nice day. Harley Davidson Wiring Diagrams and Schematics

Jun 27, 2011 | 2007 Harley Davidson FLHRS Road King...

1 Answer

06 m50 sat for approx 6 months charged the battery won't start.

from your description, i would sugest you make sure fuel is getting to the injector unit, remove the fuel supply hose.if you have spark at the plugs and fuel getting to the injectors you have isolated the problem. i would also drain the old fuel when you take the hose off and fill the tank with high grade fuel. bikes dont like old gas.

Jul 21, 2009 | 2005 Suzuki Boulevard M50

1 Answer

Bike won't start and run.

Is your fuel pump functioning? you should be able to hear it inside the gas tank when the ignition is turned on and the handle bar control is in the "RUN" position.

It does sound like your problem is the bike is not getting fuel. Inside the tank with the fuel pump there is also a fuel filter, if this is plugged up you will not get enough fuel pressure to run the bike.

If the pump is working and the filter is not plugged up then its possible your injectors could be contaminated, they would have to be removed and cleaned.

Besides the solutions above you could check the fuses and see if the EFI fuse is blown or faulty wiring or a short in the fuel system wiring could give you the same symptoms.

This is the best I can do without more information or actually looking at the bike.

Hope this helped a little.

Jun 07, 2009 | 2001 Harley Davidson FLHRCI Road King...

2 Answers

1999 road king wont start

Its your fuel pump if you can't hear it. And its inside your tank. Not a hard fix if you have a book that tells you how to remove it. Alot of procedures to follow to get it right. And yes it does work off a relay.

May 30, 2009 | 2000 Harley Davidson FLHR-FLHRI Road king

1 Answer

Fuel Pump(EFI)and lights non-functional, ignition o.k.

Check your relay for the fuel pump, make sure you are getting power to fuel pump connector (outside of tank). Check for fuel flow when pump is on, ( remove tank to fuel rail line from intake side)be carefull this results in a good fuel stream that may go everywhere. Oh yeah and no smoking. Hope this heps as it sounds like the pump is not getting poweror you have a blockage somewhere.


Mar 14, 2009 | 2003 Harley Davidson FXST Softail Standard

Not finding what you are looking for?
2003 Harley Davidson FLSTC Heritage Classic Logo

637 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4497 Answers

Gills Lango

Level 2 Expert

195 Answers


Level 3 Expert

4332 Answers

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

Answer questions

Manuals & User Guides