RPM NEEDLE NOT WORKING & U0100 + U0122 CODES - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Bashyz · 07-25-2021, 02:03 AM

After following exactly the instructions for the installation of the magna gauge face on an automatic 2019 GT86, I started up the car and the needles were all misaligned, even though I did not move them at all and reinstalled them exactly the same. Whatever I did triggered the U0100 & U0122 codes and the RPM needle does not work, along with a hesitant startup + car dies. Moving the other needles back into place gets them to read correctly, but the RPM needle does not work at all. Thanks for any help guys

Bashyz · 07-25-2021, 02:04 AM

I should also add that I tried disconnecting the battery in an attempt to reset it with no luck.

p1l0t · 07-25-2021, 07:40 AM

Maybe you should undo what you did.

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ls1ac · 07-25-2021, 05:23 PM

codes are for loss of communication. check plugs and confirm proper part numbers.

Bashyz · 07-26-2021, 05:51 PM

the magna gauge face cluster is literally just a piece of paper that swaps out the OEM one for a different look. It is purely an aesthetic mod. The removal of the needles in the cluster was required to fit it and reinstallation was what misaligned the needle. Now I am not sure how to find the point to realign the needles

07-25-2021, 02:03 AM	#1
Bashyz Junior Member Join Date: Jul 2021 Drives: GT86 Location: California Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	RPM NEEDLE NOT WORKING & U0100 + U0122 CODES After following exactly the instructions for the installation of the magna gauge face on an automatic 2019 GT86, I started up the car and the needles were all misaligned, even though I did not move them at all and reinstalled them exactly the same. Whatever I did triggered the U0100 & U0122 codes and the RPM needle does not work, along with a hesitant startup + car dies. Moving the other needles back into place gets them to read correctly, but the RPM needle does not work at all. Thanks for any help guys

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07-25-2021, 02:04 AM	#2
Bashyz Junior Member Join Date: Jul 2021 Drives: GT86 Location: California Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I should also add that I tried disconnecting the battery in an attempt to reset it with no luck.

07-25-2021, 07:40 AM	#3
p1l0t Senior Member Join Date: Jan 2016 Drives: 2016 Subaru BRZ Hyperblue Location: West Hartford, CT Posts: 8,416 Thanks: 22,575 Thanked 9,371 Times in 4,813 Posts Mentioned: 58 Post(s) Tagged: 1 Thread(s)	Maybe you should undo what you did. Sent from my SM-G975U using Tapatalk

07-26-2021, 05:51 PM	#5
Bashyz Junior Member Join Date: Jul 2021 Drives: GT86 Location: California Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	the magna gauge face cluster is literally just a piece of paper that swaps out the OEM one for a different look. It is purely an aesthetic mod. The removal of the needles in the cluster was required to fit it and reinstallation was what misaligned the needle. Now I am not sure how to find the point to realign the needles

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