ECM1 Fuse Schematic 89 Suburban

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Jwasnewski

Junior Member
Joined
Jan 8, 2020
Posts
24
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29
Location
Dawsonville, GA
First Name
Leroy
Truck Year
1989
Truck Model
GMC SUBURBAN SLE
Engine Size
5.7L
My 89 Suburban will occasionally blow the 10 amp ECM 1 fuse. It’s done it twice, both times after I got off the brake.
Anyone have a wiring diagram for the ECM 1 fuse circuit? I need to start tracing wires. I think they are pink and pink with black marker but don’t know what the fuse powers.
 

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