Old Aug 2, 2019 | 04:31 PM
  #25 (permalink)  
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BobT
Joined: Nov 2007
Posts: 60
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From: Lyndhurst, NJ
Default Re: Speedometer not working, spoiler up, ESP/BAS and other warning lights on

Originally Posted by tighed1
All of the symptoms mentioned can be caused by a bad traction control relay in the relay control module.
Open the RCM (Video on YouTube) reinstall it, turn the key to the ON position.
2 of the 3 middle relays should stay engaged. If only one, you found the problem.

If only 1, turn off car. Manually close the failed relay (toothpick works).
Start car. You should be able to lower the wing. Other faults will clear after running for a bit.

Email me for RCM repair info if needed.

tighed1@hotmail.com
I'm thinking here that if you closed the relay with the toothpick and problems cleared, did you then remove the toothpick and the problems came back? Then the relay isn't closing as it should and maybe sending it to tighed1 for a rebuild might help.
 
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