P0590 Chevrolet Speed Control Multiplexed Switch Performance

P0590 Chevrolet Speed Control Multiplexed Switch Performance

Possible causes
– Faulty Speed Control Switch
– Speed Control Switch harness is open or shorted
– Speed Control Switch circuit poor electrical connection
What about the obd code?
The Steering Column Control Module (SCCM) has detected that the Speed Control Switch 2 is not operating correctly
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)