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2001 Olds Silhouette- Left rear speed sensor signal erratic


daleluce
12-06-2016, 12:39 PM
Hey everyone. Thanks in advance for any help.

I have a 2001 silhouette with an abs light. I went to a garage and plugged it in and got this message..

"c1227 Left rear speed sensor signal erratic"

I'm wondering if someone can point me in the right direction of troubleshooting this, I think cleaning some connections and checking for damage is probably the first step, but I'm not sure where to start. Thanks!

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