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Home › Dodge and Ram › 2008 › Challenger › Repair and Diagnosis › Electrical › Horns › Steering Control Module (SCM) - Electrical Diagnostics › DTC Troubleshooting › P1593-Speed Control Switch 1/2 Stuck › Set Condition:

Set Condition:

The Steering Control Module detects that the Speed Control Switch signal voltage is not plausible.

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