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Home >> Dodge and Ram >> 2021 >> ProMaster 1500 >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0349 To P0571 >> DTC Troubleshooting >> P0564-Speed Control Switch 1 >> Possible Causes
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Possible Causes

Possible Causes
SPEED CONTROL S/C ON/OFF SWITCH SIGNAL CIRCUIT SHORTED TO VOLTAGE
SPEED CONTROL SWITCH S/C SIGNAL 1 CIRCUIT SHORTED TO VOLTAGE
SPEED CONTROL S/C ON/OFF SWITCH SIGNAL CIRCUIT SHORTED TO GROUND
SPEED CONTROL SWITCH S/C SIGNAL 1 CIRCUIT SHORTED TO GROUND
SPEED CONTROL S/C ON/OFF SWITCH SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
SPEED CONTROL SWITCH S/C SIGNAL 1 CIRCUIT OPEN/HIGH RESISTANCE
SPEED CONTROL SWITCH GROUND CIRCUIT OPEN/HIGH RESISTANCE
SPEED CONTROL SWITCH/STEERING COLUMN CONTROL MODULE
BODY CONTROL MODULE (BCM)

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