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Troubleshooting Ignition Light on a 2003 Harley Road King

The main circuit breaker is a known and reported issue on the previous years 2002 Road King. Weak batteries are also an issue with Road king electronics so if your battery is more than three years old, you should consider replacing it. And, some Road Kings manufactured early in the millennium have problems with wires that are routed too close to hot spots on the motorcycle. Hot wires are more resistant than cool wires. Troubleshoot your 2003 Harley Road King to try and track down the problems with the ignition light.

Instructions

1

Start the motorcycle in "Neutral." Turn it off and start at least three more times. If the motorcycle starts each time, the problem is not your starter relay.

2

Ride the motorcycle for 30 miles. If the ignition light flickers at any point in the ride and the bike stutters simultaneously, the problem may be your main circuit breaker.

3

Park the hot motorcycle and allow it to cool. Start the motorcycle again. If it is hard to start or the battery seems discharged your voltage regulator may be faulty.

4

Loosen the seat tab behind your seat with an Allen wrench and remove your seat to access your battery. Disconnect the cable from the negative battery terminal with an open end wrench.

5

Inspect the battery. Clean the terminals if necessary with a wire brush.

6

Grasp the right-side panel cover with both hands and pull off the cover. Locate the fuse block. Insert the blades of two, small, flathead screwdrivers on each side of the main fuse.

7

Pry out the main fuse and replace. Replace the negative battery terminal and seat. Do not replace the side cover.

8

Restart the motorcycle and determine if the ignition light problem persists. If the problem persists, you must extract the diagnostic codes from the electronic control module.

9

Turn the motorcycle off and ensure the bike is in "Neutral." Bridge terminals 1 and 2 in the data link connector in the fuse block with a jumper wire.

10

Turn the key to "Ignition" and wait until the "Check Engine" light begins to flash. Remove the jumper wire.

11

Extract the trouble codes. There are 108 trouble codes and they are sent as a series of flashes. There is a one-second pause between transmission of the first and second digit of the trouble code.

12

Translate the trouble code.

Posted by Unknown at 12:00 PM

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Labels: 2003, a, harley, ignition, king, light, on, road, troubleshooting