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Home >> Jeep >> 2008 >> Commander Overland, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P050B To P0601 >> P0579-Speed Control Switch 1 Performance >> Possible Causes
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Possible Causes

Possible Causes 
(V371) S/C SWITCH NO.1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
(V71) S/C SWITCH SENSE 1 CIRCUIT SHORTED TO VOLTAGE
(V371) S/C SWITCH NO.1 SIGNAL CIRCUIT OPEN
(V71) S/C SWITCH SENSE 1 CIRCUIT OPEN
(V397) SWITCH RETURN CIRCUIT OPEN
(V937) SWITCH RETURN CIRCUIT OPEN
(V371) S/C SWITCH NO.1 SIGNAL CIRCUIT SHORTED TO GROUND
(V71) S/C SWITCH SENSE 1 CIRCUIT SHORTED TO GROUND
(V371) S/C SWITCH NO.1 SIGNAL CIRCUIT SHORTED TO THE (V397) SWITCH RETURN CIRCUIT
(V71) S/C SWITCH SENSE 1 CIRCUIT SHORTED TO THE (V937) SWITCH RETURN CIRCUIT
STEERING COLUMN CONTROL MODULE
SPEED CONTROL SWITCH
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.