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Home >> Jeep >> 2009 >> Grand Cherokee Limited, 3.0 M, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0471 To P0581 - Diesel >> P0581-Speed Control Switch 1 Circuit High >> Possible Causes

Possible Causes

Possible Causes 
(V71) S/C SWITCH SENSE 1 CIRCUIT SHORTED TO VOLTAGE
(V71) S/C SWITCH SENSE 1 CIRCUIT OPEN
(V937) S/C SWITCH RETURN CIRCUIT OPEN
CLOCKSPRING
SPEED CONTROL SWITCH
ENGINE CONTROL MODULE (ECM)

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