Clay.0

I installed a fixed wing with a third brake light and have been getting a "check raised brake light" error after disabling the OEM spoiler with Durametric Pro

One solution is to replace the harness with one from a car that has a fixed spoiler

• If you have a fixed wing without a 3rd brake light you need: 997-612-670-71
• If you have a wing WITH a 3rd brake light you need: 997 622 670 70

Not wanting to spend $140 on a harness, I started searching and found an old thread by jchapura

I got another standard harness off eBay for $30 and followed jchapura's lead on modifying it.

The wiring diagram can be a little confusing so i tried to simplify it:
Pin A3 - BN - Brown - Chassis ground
Pin A4 - BN/OG - Brown/Orange - Ground for spoiler brake light
Pin A12 - BK/OG - Black/Orange - Ground for fixed 3rd brake light

The micro-switches are used to provide a "ground" when the spoiler is up or down to the opposing brake light. By by-passing them, you can wire the light of choice, or both.

I chose to do both.

Option 1: Fixed wing WITHOUT a 3rd brake light you need 997-612-670-71
OR splice BN/BK to BN on stock harness

Option 2: Fixed wing WITH a 3rd brake light you need: 997 622 670 70
OR splice BN/OG to BN on stock harness

Option 3: Fixed wing WITH a 3rd brake light - Splice both BN/BK and BN/OG to BN to utilize both 3rd brake lights



Harness before:



Sheathing removed, wires spliced:



While I was in there, I cut out the wires for the spoiler motor and micro-switches, leaving only the fan, engine compartment light and brake light



20 mins, some solder, and shrink wrap beats $140 any day

Hi-Arc

Thanks for posting. Great way to eliminate error message and clean up wiring. Why did the Durametric Pro not work? I was under assumption you can simply fix with program change.

burnurass

Had the same exact situation an error. Once I installed the harness I was good to go!

AlanHall

So, just want to make sure my understanding is correct....I can replace the existing wiring harness which is throwing the error with 997-612-670-71 and not have to modify the new harness at all (car now has a fixed wing without a 3rd brake light). Want to confirm before I order a non-refundable part. Appreciate the information in this post.