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Home >> Jeep >> 2007 >> Compass Limited, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0563 To P0625 >> P0579-Speed Control Switch 1 Circuit Performance >> Possible Causes
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Possible Causes

Possible Causes 
INTERMITTENT DTC
(V71) S/C SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
(V71) S/C SIGNAL 1 CIRCUIT SHORTED TO GROUND
(V71) S/C SIGNAL 1 CIRCUIT SHORTED TO THE (V937) S/C SWITCH GROUND CIRCUIT
(V71) S/C SIGNAL 1 CIRCUIT OPEN OR HIGH RESISTANCE
(V937) S/C SWITCH GROUND CIRCUIT OPEN OR HIGH RESISTANCE
CLOCKSPRING
SPEED CONTROL SWITCH
STEERING CONTROL MODULE (SCM)
POWERTRAIN CONTROL MODULE (PCM)

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