Question about 2000 Harley Davidson FLHTCUI Electra Glide Ultra Classic

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No turn signal or 4 way flashers on 2000 flhtcui , all other lights working

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  • Bill Fleming Nov 17, 2009

    after following your proceedure Everything checks out fine but still no trun signal or 4ways, could it be the module itself??? shows HDC68620-96 I think this is the part#

  • Bill Fleming Nov 17, 2009

    I only have a 6 pin module pin 1 orange pin 2 yellow/red stripe pin 3 blank pin 4 yellow pin 5 blank
    pin 6 black.

  • Bill Fleming Nov 22, 2009

    Note: the TSM was located under seat back of tank side not under fearing where the Owner manual and other manuals states, your instruction are great the problem is the TSM.


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The turn signal module gets it's power from the accessory fuse. If the fuse is good, check for 12 volts at the #2 position on the turn signal module (located on the top fork bracket). On the turn signal module the #1 wiring pin position is ground and the #2 wiring pin position is 12 volts dc. If there is no voltage using those two pins, check for resistance between pin #1 and engine ground. If resistance is greater than 1 ohm you have a broken or poor ground wire. If resistance is less than 1 ohm check for 12 vdc on both sides of the accessory fuse. If you have 12 vdc to only one side, replace the fuse. If you have 12 vdc to both sides of the fuse you have a broken wire between the accessory fuse and the turn signal module. If you do not have 12 vdc to the accessory fuse you have a broken wire from the ignition switch and the fuse block.

Posted on Nov 16, 2009

  • gestern1 Nov 17, 2009

    If everything in my previous post checks out you are ready to go futher with more testing on the module. If you have 12vdc at pin 2 using pin 1 as ground you need to check if there is 12vdc at pin 7 with the right turn signal depressed. If you do, check for 12vdc at pin 8 with the left turn signal button depressed. If you have 12vdc on both of those pins place a jumper wire between pins 2 and 3. If the right turn signal lamps illuminate, remove the jumper wire and place it between pins 2 and 4. If the left turn signal lamps illuminate the module is bad.If you did not get 12vdc on any of the above tests, let me know and I will direct you to more diagnostics.

  • gestern1 Nov 17, 2009

    When you are looking for the turn signal module, it has a 8 pin gray Deutsch Connector. The wires going to it are: #1 - Black, #2 - Orange/white, #3 - Brown, #4 - Violet, #5 - White/Green, #6 - not used, #7 - White/Brown, #8 - White/Violet.
    Hope this helps.


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