Tahoe 4WD V8-393 6.5L DSL Turbo VIN S (1995)
Radiator Cooling Fan Motor: Initial Inspection and Diagnostic Overview
Check condition of IGN E Fuse and AUX FAN Fuse. If either fuse is open, then LOCATE and REPAIR source of overload. Replace fuse(s). Check that
grounds G112 and G113 are clean and tight. Check that the Auxiliary Cooling Fan Relay is securely mounted in its socket.
Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove "GOOD" in 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). Check for proper installation of aftermarket electronic equipment which may affect the integrity of
other systems (Refer "Troubleshooting Procedures,"). See: Diagrams/Diagnostic Aids
