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Home >> Jeep >> 2005 >> Grand Cherokee Laredo, 3.7 K, AWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0579 To P0633 >> Diagnosis And Testing >> P0593-Speed Control Switch 2 Circuit High >> Possible Causes

Possible Causes

Possible Causes 
(V372) S/C SIGNAL NO.2 CIRCUIT SHORTED TO VOLTAGE
(V72) S/C SIGNAL NO.2 CIRCUIT SHORTED TO VOLTAGE
(V372) S/C SWITCH NO.2 SIGNAL CIRCUIT OPEN
(V72) S/C SWITCH NO.2 SIGNAL CIRCUIT OPEN
(V397) SWITCH RETURN CIRCUIT OPEN
(V937) SWITCH RETURN CIRCUIT OPEN
STEERING COLUMN CONTROL MODULE
SPEED CONTROL SWITCH
PCM

Always perform  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  before proceeding.