Changed out bars and now check engine light is on!
Thread Starter
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Cruiser
Joined: Apr 2012
Posts: 129
Likes: 3
From: White Rock, B.C.
Changed out bars and now check engine light is on!
Has anyone else encountered this. I changed out my bars yesterday on my 2015 SGS and although I did have a hiccup, when I got it all together I had no throttle response and after retracing my steps I discovered I had rewired the TBW plug slightly wrong. Now all is fine but the check engine light is on. I went for a 30 min ride to see if it would go off but no luck. Any thoughts, also is it possible to check the codes without a reader? Help is much appreciated.
Thread Starter
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Cruiser
Joined: Apr 2012
Posts: 129
Likes: 3
From: White Rock, B.C.
Ok I figured out how to check the codes. They are P1510, P2122 and P2138. Are these safe to clear? If so how do you clear them? I hold down the button on the code until it says CLEAR but they do not go away. Do you need to turn on the bike for awhile?
Cruiser
Joined: Apr 2005
Posts: 234
Likes: 2
From: Midland NC
Twist grip wiring messed up
P1510 Throttle Actuator Limited Performance Mode
P2122 TGS1 Low/Open
P2138 TGS Correlation Error
You need to ohm out the wires coming from the twist grip sensor to the ECM to figure out which ones are messed up. Refer to your wiring diagrams and ohm them out. the sensor 1 and sensor 2 wires operate 180 degrees out of each other. It sounds like you have a problem with TGS1 wiring. I'd ohm them out before I took anything apart though. Your MC probably won't go above idle either.
P2122 TGS1 Low/Open
P2138 TGS Correlation Error
You need to ohm out the wires coming from the twist grip sensor to the ECM to figure out which ones are messed up. Refer to your wiring diagrams and ohm them out. the sensor 1 and sensor 2 wires operate 180 degrees out of each other. It sounds like you have a problem with TGS1 wiring. I'd ohm them out before I took anything apart though. Your MC probably won't go above idle either.
More than likely that green plug is gonna be your problem , save yourself slit of time and aggravation and either cut it out and solder or go buy the CVO tbw.
Even though the green plug went together it is fragile and sounds like there is a poor connection, the pins inside the plug are easily broken.
Even though the green plug went together it is fragile and sounds like there is a poor connection, the pins inside the plug are easily broken.
Thread Starter
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Cruiser
Joined: Apr 2012
Posts: 129
Likes: 3
From: White Rock, B.C.
I appreciate all your responses and advice but if the bike rides fine with no throttle issues is it possible that the codes came from when I fired up the bike when the plug was wired up and connected incorrectly? It is strange that I cannot seem to clear the codes.
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
Does the check engine light stay on while riding or come back on for a few seconds after you crank it up?
2010 Limited with some stuff
2010 Limited with some stuff
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Tourer
Joined: Apr 2010
Posts: 283
Likes: 3
From: Guymon, OK
Is it going into parade mode? Does the cruise work? This is what happened to me when I put my BR's Custom bars on my SG. I had to take the bars off and pull the TBW bundle out far enough to cut the green connector out and solder the wires directly. Works fine now.
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Joe Kucinski
Seasoned HDF Member
Joined: Jan 2013
Posts: 10,637
Likes: 1,246
From: Lake, Ms
If the check engine light is staying on while your riding then the code is current. If the light came on after you started the bike and went out after 10secs or so then that's a historic code that was fixed. Your more than likely gonna have to do away with the green plug one way or another. Or you can ride it out and wait for it to fail. Your call.
2010 Limited with some stuff
2010 Limited with some stuff