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Home >> Dodge and Ram >> 2006 >> Durango 4.7 P, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0571 To P0622 >> Diagnosis And Testing >> P0579-Speed Control Switch 1 Performance (5.7L) >> Possible Causes

Possible Causes

Possible Causes 
(V37) S/C SWITCH NO.1 SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(V37) S/C SWITCH NO.1 SIGNAL CIRCUIT OPEN
(V937) SWITCH RETURN CIRCUIT OPEN
(V37) S/C SWITCH NO.1 SIGNAL CIRCUIT SHORTED TO GROUND
(V37) S/C SWITCH NO.1 SIGNAL CIRCUIT SHORTED TO THE (V937) SWITCH RETURN CIRCUIT
CLOCKSPRING
SPEED CONTROL SWITCH
PCM

Always perform  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  before proceeding.