Diagnostic Aids

A blown fuse(s) can cause cooling fan motor malfunction. Ensure engine mechanical is okay and is not the cause of an engine overheating problem.

An intermittent malfunction may be caused by a poor connection, rubbed-through wire insulation, or a wire broken inside insulation. Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, or poor terminal-to-wire connections before component replacement.