Reverse light flashing - GL1800Riders
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post #1 of 19 (permalink) Old 02-14-2017, 05:50 AM Thread Starter
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Reverse light flashing

Reverse light flashing. It started when I tried to back up. I switched to reverse, hit the start button, it began to back up then stopped. I released the start button and tried it again. The same thing happened. This time I smelled hot plastic smoke. I switched the relays, I lubed th springs and checked the cables to see if they needed adjustment. The electrical connection at the point by the oil dipstick is tight. I would like to measure voltages but don't know where to begin.
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post #2 of 19 (permalink) Old 02-14-2017, 02:28 PM
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I dealt with that same problem for quite a while. When you checked the cables for proper adjustment, did you verify there was the proper clearance between the reverse shift arm and the lost motion plate when in reverse? That clearance is very critical to consistent correct operation.


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post #3 of 19 (permalink) Old 02-14-2017, 07:12 PM
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Plastic smell may be a hint that the reverse resistor is overheating. This might be a sign of a faulty starter solenoid.

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post #4 of 19 (permalink) Old 02-15-2017, 10:29 AM Thread Starter
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I can't check the clearance in reverse because it won't go into reverse. If it is a battery issue would it cause the reverse light to flash? I forgot to mention that my bike is an 06 with 115,000 miles. It probably won't hurt to replace the starter solenoid although it starts just fine. Where is the resistor located Fred?
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post #5 of 19 (permalink) Old 02-15-2017, 06:06 PM
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I can't check the clearance in reverse because it won't go into reverse. If it is a battery issue would it cause the reverse light to flash? I forgot to mention that my bike is an 06 with 115,000 miles. It probably won't hurt to replace the starter solenoid although it starts just fine. Where is the resistor located Fred?
Not Fred, but the resistor is under the battery box area. It has a large cable bolted to it and a brown plug with 3 wires on it. It has metal fins on it. Unplug it and measure the resistance from the three terminals to the large cable connector, one at a time. They should measure nearly shorted. If any one of the three measures open or more than an ohm, the resistor is bad.

If it checks good, then the issue is somewhere else. Are you getting a good neutral light?
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Last edited by techdude2000; 02-15-2017 at 06:29 PM.
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post #6 of 19 (permalink) Old 02-15-2017, 07:08 PM Thread Starter
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Reverse

I am getting a good neutral light
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post #7 of 19 (permalink) Old 02-15-2017, 07:23 PM Thread Starter
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I get a neutral light when I disengage the reverse switch
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post #8 of 19 (permalink) Old 02-15-2017, 08:39 PM
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I get a neutral light when I disengage the reverse switch
Ok, that means the reverse mechanics are fully into the neutral position. The flashing light means the system is sensing a fault during the system test it performs when you engage the switch. You will probably have to go through the troubleshooting steps in the service manual to check for all the correct signals where they should be if the resistor checks out good. Do you have a copy of the service manual for your model year?

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post #9 of 19 (permalink) Old 02-15-2017, 08:59 PM
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Didn't someone mention here not too long ago that a flashing reverse light was an indication of a low battery, or am I thinking of some other flashing light?
Maybe that was the ABS light?
My memory is just not that great

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post #10 of 19 (permalink) Old 02-16-2017, 07:59 AM
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I can't check the clearance in reverse because it won't go into reverse. If it is a battery issue would it cause the reverse light to flash? I forgot to mention that my bike is an 06 with 115,000 miles. It probably won't hurt to replace the starter solenoid although it starts just fine. Where is the resistor located Fred?
Evidently I am misunderstanding your original post. Looks like if it started to back up, it was in reverse but shut down when you started to back up.


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DISCLAIMER: All post are my personal opinion and are in no way intended to reflect on or change the opinions of others.
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