Run start switch question.
On a 2004,(don't have schematics for a 01), the switch tells the ECM there is Switch Power, provides power to the Start button and system relay coil and ECM provides ground for the coil. When grounded the contacts make and power from ECM fuse powers fuel pump, fuel injectors and Ignition coil.
Last edited by Vernal; Mar 28, 2020 at 07:50 AM.
The short answer is I don't think the pump is running. On my 02 Road King when you turn on the ignition and hit the run switch the pump runs for about 2-3 seconds building pressure. I don't hear that on my buddies bike.
Dan89FLSTC pointed out that TSSM pin 9 needs to go to ground for the bike to crank. As I dig into this more I am beginning to suspect the security system is armed and the start relay might also be bad as I don't have continuity between the S and U terminal of the actual relay. Looking at the wiring diagram, they should connect.
I hope to get over to check things out today. I plan to start by throwing the bike battery on a charger, putting fresh batteries in the fobs as well as throwing in a new starter relay.
Thanks,
Garrman
The short answer is I don't think the pump is running. On my 02 Road King when you turn on the ignition and hit the run switch the pump runs for about 2-3 seconds building pressure. I don't hear that on my buddies bike.
Dan89FLSTC pointed out that TSSM pin 9 needs to go to ground for the bike to crank. As I dig into this more I am beginning to suspect the security system is armed and the start relay might also be bad as I don't have continuity between the S and U terminal of the actual relay. Looking at the wiring diagram, they should connect.
I hope to get over to check things out today. I plan to start by throwing the bike battery on a charger, putting fresh batteries in the fobs as well as throwing in a new starter relay.
Thanks,
Garrman
I replaced the starter relay and confirmed continuity between terminal 85 on the starter relay block and pin 9 on the TSSM plug. The good news, no high resistance or evidence of a short.
I wanted to see if the bike would start if I grounded pin 9 on the TSSM plug as suggested by Dan89FLSTC. With the TSSM unplugged, I grounded pin 9. The first thing I noticed was the fuel pump priming. The bike was able to crank and to my surprise, it also started and continued to run without the TSSM plugged in.
I also put fresh batteries in the security fobs. I reinstalled the TSSM and tried to disarm the security system by pressing twice on the button on the fob. No start.
I am trying to figure out if the TSSM is defective or that there is a procedure that needs to preformed after disconnecting the battery. This whole process would be easier if my friend had an owners manual or knew the PIN for the security system.
One step closer to solution. Thanks all for the suggestions and information.
Garrman
I am helping a buddy with his 2001 fuel injected Road king FLHRI. He does not ride it much.
After sitting for about a month, he went to start it and it would not start. He thought it was the battery so he changed that. Again, no start.
I was asked to come over and look at it. I have confirmed good battery. I am as certain as I can be that the run start switch is bad.
Jumping the the starter is easy but I think the run switch enables power to the ignition as well via the TSSM module. Is that correct?
Is there a way to do a temporary "jumping" to confirm the switch is bad and make sure the bike will start and run?
All suggestions are welcome.
Thanks,
Garrman
Ok lets break this down to little bits,
Bike gets little use and sits,
Bike ran but now doesn't from just sitting.
First is the battery fully charged ? Sitting even a few weeks doesn't do them any favors and if the voltage drops under a certain point during cranking the FI & ignition won't fire.
Fuses checked ?
Next have all the battery cables been checked and ground points cleaned ?
Next have you popped the connectors on the various components in the wiring harness apart a few times to be sure pins are making contact ?
Don't know about the early FI bikes but can you read codes on them ?
This is the easy early things that should be done BEFORE digging in and replacing maybe it's this $$$ items .
Last edited by Ed Ramberger; Mar 28, 2020 at 09:11 PM.
The Best of Harley-Davidson for Lifelong Riders
The bike is a 2001 Road King. I was under the understanding that the TSSM was married to the ECM and the bike would start but die soon after. this was not the case.
I replaced the original TSSM and as before the bike would not start. I tried to enter the mode to display the PIN (on, off, on, off, on, left turn signal twice, right turn signal once) but it would not enter that mode.
Any ideas what I might be missing? The bike acts like the security system is armed even after two quick presses on the fob button. I also tried the hold the fob button for 10-15 seconds and look for two flashes of the turn signals. Still no start with the original TSSM.
Failing a method of resetting or otherwise fixing the original unit, if I pick up a TSSM on eBay, is it possible to use the original fobs?
I appreciate the suggestions and support so far.
Garrman
Hopefully Ed will come back butI found this old file in my documents. Try this on the original TSSM
:to reset the TSSM.
For 2001 and up Harley Davidsons with TSSM Security Module, (key icon displays when key is turned to ignition position)
if your security light stays on for a prolonged period of time, if you have changed your battery or disconnected your battery when fitting components such as LED turns & if you have fitted LED turns without a load equalizer, you will need to reprogram your OEM Module.
step # 1. move handle bar kill switch to off position
step # 2. turn your ignition key: on-off, on-off then on
step # 3. hit the left turn signal twice.
your turn signals and indicator light will flash 1 - 3 flashes
step # 4. hit the right turn signal once.
turn signals and indicator light will flash once.
step # 5. hit the right turn signal once.
turn and indicator signals will flash twice.
step # 6. hit right turn signal once.
turn and indicator signals will flash three times.
step # 7. hit left turn signal once.
turn and indicator signals flash to indicate error code
(see error code thread)
step # 8. to now clear codes, hit left turn signal and hold down for 6 seconds until confirmation.
turn and indicator signals flash twice.
step # 9. turn the ign switch to off
Thats it, TSSM is now reset and ready to roll.
Last edited by Vernal; Mar 29, 2020 at 08:47 AM.










