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Home >> Dodge and Ram >> 2008 >> Challenger >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0503 To P0850 >> Diagnosis And Testing >> P0591-Speed Control Switch 2 Performance >> Possible Causes

Possible Causes

Possible Causes 
(V72) S/C SIGNAL 2 CIRCUIT SHORTED TO VOLTAGE
(V72) S/C SIGNAL 2 CIRCUIT OPEN OR EXCESSIVE RESISTANCE
(V937) S/C SWITCH GROUND CIRCUIT OPEN OR EXCESSIVE RESISTANCE
(V72) S/C SIGNAL 2 CIRCUIT SHORTED TO GROUND
(V72) S/C SIGNAL 2 CIRCUIT SHORTED TO THE (V937) S/C SWITCH GROUND CIRCUIT
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  . 

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