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Home >> Dodge and Ram >> 2009 >> Durango Base, 3.7 K >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0591 To P0685 >> P0591-Speed Control Switch 2 Performance >> Possible Causes

Possible Causes

Possible Causes 
(V38) S/C SWITCH NO. 2 SIGNAL CIRCUIT OPEN
(V38) S/C SWITCH NO. 2 SIGNAL CIRCUIT SHORTED TO VOLTAGE
(V937) S/C SWITCH RETURN CIRCUIT OPEN
(V38) S/C SWITCH NO. 2 SIGNAL CIRCUIT SHORTED TO GROUND
(V38) S/C SWITCH NO. 2 SIGNAL CIRCUIT SHORTED TO THE (V937) S/C SWITCH RETURN CIRCUIT
SPEED CONTROL SWITCH
CLOCKSPRING
POWERTRAIN CONTROL MODULE (PCM)
WARNING: On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury. Refer to Electrical - Engine Systems/Battery System - Warning

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .