How does the TGS sensor work electrical
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Stage III
Joined: Jun 2017
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From: Wappingers falls, NY
How does the TGS sensor work electrical
Ok i had some codes thrown after a handlebar update P1510 and P2138 TGS correlation error. I understand the 1510 but not fully understanding the correlation error.
I have taken the TGS out again and have measured the "green" connector and it appears to be good connections. I have also measured the two groups of 3 wires. It would appear to be like a variable resistor with the total resistance of 6K ohms and the wiper at one end measuring hi at 6K and low at 179 Ohms. Both sections of the TGS read very close to the same.
While measuring the TGS i tried rotating the end to see if the resistance changed but no it stayed the same 170 or 6K
Im electronics by trade and want to know if these TGS's are actually resistive or some other form of device like magnetic?
Any other electronic guru's out there care to answer please?
Regards
Nigel
I have taken the TGS out again and have measured the "green" connector and it appears to be good connections. I have also measured the two groups of 3 wires. It would appear to be like a variable resistor with the total resistance of 6K ohms and the wiper at one end measuring hi at 6K and low at 179 Ohms. Both sections of the TGS read very close to the same.
While measuring the TGS i tried rotating the end to see if the resistance changed but no it stayed the same 170 or 6K
Im electronics by trade and want to know if these TGS's are actually resistive or some other form of device like magnetic?
Any other electronic guru's out there care to answer please?
Regards
Nigel
Seasoned HDF Member
Joined: Jun 2012
Posts: 6,158
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From: CT/FL
they are two opposing vairable resistors - I don't recall the exact numbers but it goes something like this - say one is zero to 5v with increasing throttle the other is 5 to 0v with increasing throttle. If the two don't add up to 5v you get a correlation error.
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Stage III
Joined: Jun 2017
Posts: 3
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From: Wappingers falls, NY
Ok that makes good sense thank you. One problem... if they are variable resistors they are not turning!. But if you start bike the throttle works to a degree. they must be hall effect devices working on magnetic changes.
Think i will delete the "green" connector and try again may be a poor connection under load is causing the correlation error.
Again thanks.
N
Think i will delete the "green" connector and try again may be a poor connection under load is causing the correlation error.
Again thanks.
N
Seasoned HDF Member
Joined: Jun 2015
Posts: 8,055
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From: Canada
Interesting they would only run two sensors (if thats the case). Cars with drive by wire use 3 variable resistors with increasing and decreasing values to be redundant and will still work but set a code if one resistor goes off-line.
Seasoned HDF Member
Joined: Jun 2012
Posts: 6,158
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From: CT/FL
Or, if you have a Power Vision, you can read the voltages on one of the screens.
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From: Phoenix '53, '88, '09 Big Twins
you need a basic understanding and a wiring diagram to test.
Mike
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Stage I
Joined: Jul 2017
Posts: 1
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From: South East Texas
Ok i had some codes thrown after a handlebar update P1510 and P2138 TGS correlation error. I understand the 1510 but not fully understanding the correlation error.
I have taken the TGS out again and have measured the "green" connector and it appears to be good connections. I have also measured the two groups of 3 wires. It would appear to be like a variable resistor with the total resistance of 6K ohms and the wiper at one end measuring hi at 6K and low at 179 Ohms. Both sections of the TGS read very close to the same.
While measuring the TGS i tried rotating the end to see if the resistance changed but no it stayed the same 170 or 6K
Im electronics by trade and want to know if these TGS's are actually resistive or some other form of device like magnetic?
Any other electronic guru's out there care to answer please?
Regards
Nigel
I have taken the TGS out again and have measured the "green" connector and it appears to be good connections. I have also measured the two groups of 3 wires. It would appear to be like a variable resistor with the total resistance of 6K ohms and the wiper at one end measuring hi at 6K and low at 179 Ohms. Both sections of the TGS read very close to the same.
While measuring the TGS i tried rotating the end to see if the resistance changed but no it stayed the same 170 or 6K
Im electronics by trade and want to know if these TGS's are actually resistive or some other form of device like magnetic?
Any other electronic guru's out there care to answer please?
Regards
Nigel
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