P1597 CHRYSLER - Speed Control Switch Always Low
- Faulty Speed Control Switch
- Speed Control Brake Switch harness is open or shorted
- Speed Control Brake Switch electrical circuit poor electrical connection
- Faulty Clockspring
- Clockspring harness is open or shorted
- Clockspring electrical circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
- Speed Control System (Cruise Control) inoperative
P1597 Chrysler DescriptionThe speed control system is electronically controlled and vacuum operated. Electronic control of the speed control system is integrated into the Powertrain Control Module (PCM). The controls consist of two steering wheel mounted switches. The switches are labeled: ON/OFF, RES/ACCEL, SET, COAST, and CANCEL. The system is designed to operate at speeds above 30 mph (50 km/h).
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