Radiator Cooling Fan Control Module: Testing and Inspection

Cooling Fan Controller Diagnosis (Part 1 Of 4):

Cooling Fan Controller Diagnosis (Part 2 Of 4):

Cooling Fan Controller Diagnosis (Part 3 Of 4).:

Cooling Fan Controller Diagnosis (Part 4 Of 4):

Diagnosis of cooling fan controller can be performed by taking voltage
and continuity readings at controller connector, with connector plugged into controller. Readings should be obtained at indicated connector pins. If indicated reading is not present, refer to system diagnostic test procedures to determine origin of problem.