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Home >> Dodge and Ram >> 2019 >> ProMaster City Base >> Repair and Diagnosis >> Engine Performance >> System >> 2.4L - DTCS P0304 To P062A >> DTC Troubleshooting >> P0579-Speed Control Switch 1 Performance >> Possible Causes
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Possible Causes

Possible Causes
SPEED CONTROL SWITCH SIGNAL 1 CIRCUIT OPEN/HIGH RESISTANCE
SPEED CONTROL SWITCH GROUND CIRCUIT OPEN/HIGH RESISTANCE
SPEED CONTROL SWITCH
CLOCKSPRING
BODY CONTROL MODULE (BCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .