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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> DTCS P0645 To P1593 >> P0693-Cooling Fan 2 Relay Control Circuit Low >> Possible Causes
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Possible Causes

Possible Causes 
(A16) FUSED B+ CIRCUITS
(N112) COOLING FAN NO. 2 RELAY CONTROL CIRCUIT OPEN
(N112) COOLING FAN NO. 2 RELAY CONTROL CIRCUIT SHORTED TO GROUND
HIGH SPEED RADIATOR FAN RELAY
FRONT CONTROL MODULE (FCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .