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Old 07-05-2020, 08:26 PM   #1
TBONE1964
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Location: Junction City, OR
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Help with circuit board mapping 90/91 cluster

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
Tom
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Old 07-06-2020, 12:30 PM   #2
TrybalRage
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Re: Help with circuit board mapping 90/91 cluster

Quote:
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
Tom
Perhaps these will help:
http://www.73-87chevytrucks.com/tech...rument_pg1.jpg

http://www.73-87chevytrucks.com/tech...rument_pg2.jpg
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