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Old 07-06-2020, 12:30 PM   #2
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Join Date: Jun 2014
Location: Reading, PA
Posts: 153
Re: Help with circuit board mapping 90/91 cluster

Originally Posted by TBONE1964 View Post
I am looking for someone who has diagram or knows the mapping of the circuit board on a 90/91 (Blazer/Suburban) cluster with electric speedometer.

I need to map the vss 12 volt, ground and signal to sensor.

Modified an early cluster with late speedometer.

Thank you in advance
Perhaps these will help:
1985 C10 Silverado LWB
LS Swap in Progress
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