FixVault
Home
›
GMC
›
1991
›
Pickup K2500, 2D Pickup, 6.2 C, Standard
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - System/Component Tests
›
Computerized Engine Controls
›
Control Unit
›
Notes
Control Unit: Notes
NOTE:
To perform the following ground and power tests, refer to the
WIRING DIAGRAMS
article in this section