G 1500 1/2 Ton Van V6-4.3L VIN W (1997)
continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded and if possible, should be
checked by monitoring for a voltage drop with the system operational (under load).
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CHECK for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (Refer to "General
Troubleshooting Procedures,"). See: Diagrams/Diagnostic Aids