Speedo Correction - it works! - BMW Luxury Touring Community
 
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post #1 of 10 Old Jul 15th, 2010, 10:07 am Thread Starter
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Speedo Correction - it works!

I had the nose cone off to replace my DDM HID H3 (high beam) and decided to go ahead and do the speedometer correction. Was easier than I thought it would be, and WORKS! You do need a very fine-tipped solder gun (which I don't have)... I had the kid at Radio Shack do the actual soldering - took 3 minutes.

Mine used to be off by at least 10%; now back to within 1% or so (compared to GPS).

Many thanks to Randy for the great article! Want to do this yourself? Click here for instructions.

Brian
CCR: 2008, Midway; 2011, Boise; 2012, Duluth; 2014, Chattanooga. MOA: Billings, 2015; SLC, 2017
CCR-R: 2018, Russellville
'13 K1600 GTL-P - "Eva"
Sold but "beloved" ride: K12 LT - "Pepe"
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post #2 of 10 Old Jul 15th, 2010, 10:18 am
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Re: Speedo Correction - it works!

At the 24K service I'm gonna do mine! Big problem for me is that the bike speedo reads fast i.e. 30mph = 27mph while my F150 pickup is the opposite! 30 mph indicated = nearly 35mph!

I use the GPS for both!

Loren

WAK1200LT
Loren

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post #3 of 10 Old Jul 15th, 2010, 10:54 am
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Talking Re: Speedo Correction - it works!

Is the same board used for newer models? mine is an 05. Will this adjustment work on all years?????????

Toby in New York
1983 R80RT Red (sold)
'03 R1200CLC (T-boned and replaced with)
'04 R1200CL Sidestand problem, BMW traded me for
'05 K1200LT. Goldie, Priceless
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post #4 of 10 Old Jul 15th, 2010, 10:55 am
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Re: Speedo Correction - it works!

Quote:
Originally Posted by wa1200lt
At the 24K service I'm gonna do mine! Big problem for me is that the bike speedo reads fast i.e. 30mph = 27mph while my F150 pickup is the opposite! 30 mph indicated = nearly 35mph!

I use the GPS for both!

Loren
You must have considerably larger wheels on the truck than it had stock. That is one thing so many people do and not think about the speedo change. There are speedo drive gear conversions available for many cars, don't know about your truck, if it uses a gear drive. Later trucks have a VSS (Vehicle speed sensor) pulse plate which can be changed out for a different one, or some vehicles have a PCM (Pulse Code Module) which can be calibrated. Ask your dealer about your model truck.

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post #5 of 10 Old Jul 15th, 2010, 12:20 pm
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Re: Speedo Correction - it works!

The first time I tried the fix it didn't work for me. Hmmmmm? No one else on the forum had seen this procedure fail. When I went back in to check my soldering, I looked at my PC board and then the HOW picture and realized that my PC board was missing a 0 ohm resister (jumper). So even though I correctly jumpered the correct pads, the fix as stated, won't work if a resister is missing from the jumper area.
Check your board against the photo in the HOW very closely or it could cause you to dive that deep again.
It feels real good to have an accurate speedo even though the GPS is there.

HTH,
Jer

Jerry Palma
99 K1200LTI Champagne 'Oh, Kay' (dropped: 5)
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post #6 of 10 Old Jul 15th, 2010, 1:09 pm Thread Starter
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Re: Speedo Correction - it works!

Quote:
Originally Posted by jers99lt
The first time I tried the fix it didn't work for me. Hmmmmm? No one else on the forum had seen this procedure fail. When I went back in to check my soldering, I looked at my PC board and then the HOW picture and realized that my PC board was missing a 0 ohm resister (jumper). So even though I correctly jumpered the correct pads, the fix as stated, won't work if a resister is missing from the jumper area.
Check your board against the photo in the HOW very closely or it could cause you to dive that deep again.
It feels real good to have an accurate speedo even though the GPS is there.

HTH,
Jer
Mine is jumpered with wire - essentially the same as a 0 ohm resistor..

Brian
CCR: 2008, Midway; 2011, Boise; 2012, Duluth; 2014, Chattanooga. MOA: Billings, 2015; SLC, 2017
CCR-R: 2018, Russellville
'13 K1600 GTL-P - "Eva"
Sold but "beloved" ride: K12 LT - "Pepe"
IBA #31242 (SSx2, BB, BBG)
MOA #136148

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post #7 of 10 Old Jul 15th, 2010, 2:23 pm
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Cool Re: Speedo Correction - it works!

Tobiwan,
The '05 and newer reads about 3-3.5 mph fast(60 showing = 56.5 appx). We need to move the speedo arm down the amount of one dash so it reads 60 at 60. That fix is on here somewhere. Or, remember that 60 is really one dash over 60. 50 is two dashes below 60. Same for all numbers on the speedo.
That is what my GPS and speedo told me.

Benton Blalock
"I ride.....the bike doesn't"

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post #8 of 10 Old Jul 15th, 2010, 2:31 pm
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Re: Speedo Correction - it works!

what about jumper JA...it says may also remove, or leave in place ?? What effect does jumper JA have ?? I currently have Metz 880 on the front !!

Jim

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post #9 of 10 Old Jul 15th, 2010, 5:47 pm Thread Starter
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Exclamation Odometer now running BACKWARDS - no good

UPDATE! Hold the thought on how well this works! I ran a short ride last night to verify the accuracy, using comparison to GPS. Looked great.

Today, ran about a 30 mile test.... Odometer running BACKWARDS! WTF??

Don't think I got any wires crossed, and I KNOW the jumpers per the instructions are correct, so I'll have to tear the beast apart and investigate.

Brian
CCR: 2008, Midway; 2011, Boise; 2012, Duluth; 2014, Chattanooga. MOA: Billings, 2015; SLC, 2017
CCR-R: 2018, Russellville
'13 K1600 GTL-P - "Eva"
Sold but "beloved" ride: K12 LT - "Pepe"
IBA #31242 (SSx2, BB, BBG)
MOA #136148

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post #10 of 10 Old Jul 15th, 2010, 7:21 pm
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Re: Speedo Correction - it works!

Quote:
Originally Posted by hallzee
Mine is jumpered with wire - essentially the same as a 0 ohm resistor..
I'm talking about a factory installed 0 ohm resister that was missing on my PCB.

Jer

Jerry Palma
99 K1200LTI Champagne 'Oh, Kay' (dropped: 5)
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BMWMOA #157323 / ABC #11368 -- All-in-all a newbie!

I love these bikes regardless of what I've needed to fix on them. I'll: Just Ride 'em!
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