Chart C-12C No Low Speed Fan Two-Speed Coolant Fan

Fig. 049 - CHART C-12C - Fan On At All Times Two Speed Coolant Fan.:

Fig. 050 - WIRING DIAGRAM for Chart C-12C - Coolant Fan No Low Speed Fan. VIN L:

CHART C-12C

COOLANT FAN NO LOW SPEED FAN

3.0L "N" SERIES

FUEL INJECTION (PORT)

1. Checks for battery + at relay harness connector.
2. Jumpering terminals "G to B" bypasses the relay which should cause the fan to run if fan motor and wiring to the motor are good.
3. Grounding the test terminal should cause the ECM to ground CKT 535. At this point, the test light should light if the ECM is good and CKT 535 isn't open.
4. This checks for battery + and ground to the fan motor. A test light "ON" at this point indicates a faulty fan motor connection or motor.