Chart C-12D, Cooling Fan, No Pusher Fan (4 Of 4) 3.8L

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NOTE: Test numbers refer to test numbers on diagnostic charts.

Test light should be illuminated because harness terminal "F" has battery voltage with ignition in the ON position.
Jumpering relay harness terminals "A" and "E" by-passes relay. If fan runs, relay is faulty.
Checks circuit No. 473 back to PCM. If circuit No. 473 is okay, relay is bad.
Checks wiring to cooling fan motor. If wiring is okay, problem is in the connections, motor or motor ground.

Fig 1: Cooling Fan Circuit Schematic (3.8L)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Cooling Fan Circuit Flow Chart, (3.8L) (4 Of 4)

Courtesy of GENERAL MOTORS CORP.

NOTE: The following Schematic & Flow Chart are Courtesy of General Motors Corp.

Fig 3: Cooling Fan Circuit Schematic & Flow Chart (7.4L G, C & K Series With A/C)