The Autonerdz Community Forums - Fly by wire Throttle sensor question

	Welcome, Guest. Please Login or Register

Home

Help

Member Map

Event Calendar

The Autonerdz Community Forums › › › Fly by wire Throttle sensor question

‹ Previous Topic | Next Topic ›

Pages: 1

Send Topic

Fly by wire Throttle sensor question (Read 225 times)

James H

Senior Member
Picogroup

Offline

Bike Nerd

Posts: 165

Waterloo
Ontario
Canada
Gender: male

Fly by wire Throttle sensor question
Mar 1^st, 2026 at 11:23am

Can someone give me your thought on the this Throttle position Sensor waveform? 2013 Aprilia Tuono. It has 2 TPS sensors for redundancy but I have only come across other system where the redundancy is a mirror image and this is not. The bike intermittently throws a code and goes into limp mode. The fault is "Throttle sensor mismatch between channels c and d"

Aprilia_Tuono_V4R_TPS_CD.psdata (16805 KB | )

WWW

IP Logged

James H Senior Member Picogroup Offline Bike Nerd Posts: 165 Waterloo Ontario Canada Gender:	Re: Fly by wire Throttle sensor question Reply #1 - Mar 1^st, 2026 at 11:34am Other waveform
Back to top	Aprilia_Tuono_V4R_TPS_AB.psdata (16307 KB \| ) WWW IP Logged

Grant B

Guru Member
Picogroup

Offline

I'm an Autonerd

Posts: 358

Rockford, IL
Illinois
USA
Gender: male

Re: Fly by wire Throttle sensor question
Reply #2 - Mar 1^st, 2026 at 3:15pm

I've looked at both of your .psdata files.

From .psdata file "Aprilia_Tuono_V4R_TPS_CD":
"as per manual on page 162 - voltage should be between 600 and 1400mv."

Where is ths voltage supposed to exist? Do you have a wiring diagram to share?

I found the following forum thread that refers to a 2016 Aprilia RSV4 RR with a P0155:

https://www.apriliaforum.com/forums/showthread.php?372293-2016-RSV4-RR-Engine-cu...

An excerpt from the resolution post:

"...The issue is fixed and it was not the Throttle Position Sensor...
It was the security/lean angle sensor bolted on the tank...I put a tank from a 2018 RSV4 RR with the stock 2018 security sensor on my 2016 bike. The security sensors are different between 2016 and 2018. Installed a 2016 sensor and that resolved the issue."

“Those nerds are a threat to our way of life.” – Stan Gable

IP Logged

James H Senior Member Picogroup Offline Bike Nerd Posts: 165 Waterloo Ontario Canada Gender:	Re: Fly by wire Throttle sensor question Reply #3 - Mar 1^st, 2026 at 7:00pm The service manual is unclear in my opinion, as far as I can tell its where i'm checking it. I can't see how it would have anything to do with the lean angle sensor as it goes into limp mode, a fault with that should result in a no run condition. I'll dig up a wiring diagram.
Back to top	WWW IP Logged

James H Senior Member Picogroup Offline Bike Nerd Posts: 165 Waterloo Ontario Canada Gender:	Re: Fly by wire Throttle sensor question Reply #4 - Mar 1^st, 2026 at 7:33pm Wiring diagram is crap..welcome to the world of motorcycles
Back to top	aprilia-tuono-v4-1100-rr-factory-e4-eu-usa-asia-20.pdf (268 KB \| ) WWW IP Logged

Grant B

Guru Member
Picogroup

Offline

I'm an Autonerd

Posts: 358

Rockford, IL
Illinois
USA
Gender: male

Re: Fly by wire Throttle sensor question
Reply #5 - Mar 4^th, 2026 at 11:28am

James H wrote on Mar 1^st, 2026 at 7:00pm:

I can't see how it would have anything to do with the lean angle sensor as it goes into limp mode, a fault with that should result in a no run condition.

In the automotive world, any circuit related to electronic throttle control is tightly monitored. Anything that puts an abnormal load on the engine can cause false throttle-related codes. I believe it is Dodge with Cummins and an electrically-controlled (PWM?) fan clutch...when the fan clutch starts failing the engine computer will code for throttle-related circuits (not fan clutch related circuits).

Sorry I can't read anything in the wiring diagram image due to image resolution. Like you say, the wiring diagram may not be much help anyway.

“Those nerds are a threat to our way of life.” – Stan Gable

IP Logged

James H Senior Member Picogroup Offline Bike Nerd Posts: 165 Waterloo Ontario Canada Gender:	Re: Fly by wire Throttle sensor question Reply #6 - Mar 4^th, 2026 at 12:13pm Appreciate your thoughts and taking the time to have a look.
Back to top	WWW IP Logged

StitchB

Super Nerd
Picogroup

Offline

Posts: 1,314

lake stevens
Washington
USA
Gender: male

Re: Fly by wire Throttle sensor question
Reply #7 - Mar 11^th, 2026 at 12:45pm

Grant, great point on the cummins fan as I have seen that, makes no sense, but is what it is.

James, I guess this is the old question of what does a good one look like. Material states between 600 and 800 MV and I seen no corelation to that anywhere. Most throttle I have seen are revers, one starting say for example, 5 volts and decending and the other starting at 0 and rising. Again how did they do it and sure would be nice to see a known good one working.

Thanks for the info both guys,

Larry

IP Logged

Pages: 1

Send Topic

‹ Previous Topic | Next Topic ›

« Home

‹ Board

Top of this page

Autonerdz forums