Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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This is a common problem caused by a failed wiper module which is built into wiper motor assembly. With the wiper switch disconnected, do the wipers run on low speed? If so, verify the Pink wire has no voltage. If not, replace the wiper cover circuit board assembly. If the Pink wire has voltage, trace the wire for a short. The Dark Blue wire is grounded by the wiper switch for high speed operation. Let me know how it goes or if you have more questions, thanks.