Help with circuit board mapping 90/91 cluster - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**TBONE1964** · 07-05-2020, 08:26 PM

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

TrybalRage · 07-06-2020, 12:30 PM

Quote:

Originally Posted by TBONE1964

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

07-05-2020, 08:26 PM	#1
TBONE1964 Cluster King Join Date: Nov 2012 Location: Junction City, OR Posts: 5,263	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 __________________ Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C



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