Category: OBDii Powertrain Codes

P0604 ECM Self Check Fault Possible causes – Loose or poor battery terminal connection– Low battery charge– ECM power supply circuit is open or shorted– ECM Programing– Faulty ECM Tech description Check the ECM/PCM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram…

P0596 Speed Control Servo Control Circuit High Possible causes – Faulty Servo Motor– Servo Motor harness is open or shorted– Servo Motor circuit poor electrical connection What about the obd code? Open or shorted condition in the cruise control servo circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0588 Cruise Control Vent Control Circuit High Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0589 Speed Control Switch 2 Performance Condition Possible causes – Open or short cruise control switch circuit– Poor cruise control switch electrical connection– Faulty cruise control switch What about the obd code? Cruise control switch out of range Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0590 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…

P0591 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…

P0592 Speed Control Switch 2 Circuit Low 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 ECM has detected that the speed control switch 2 is below minimum voltage range Symptoms – Engine Light ON (or…

P0593 Speed Control Switch 2 Circuit High 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 ECM has detected that the speed control switch 2 is above minimum voltage range Symptoms – Engine Light ON (or…

P0594 Speed Control Servo Circuit Possible causes – Faulty Servo Motor– Servo Motor harness is open or shorted– Servo Motor circuit poor electrical connection What about the obd code? Open or shorted condition in the cruise control servo circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0595 Speed Control Servo Control Circuit Low Possible causes – Faulty Servo Motor– Servo Motor harness is open or shorted– Servo Motor circuit poor electrical connection What about the obd code? Open or shorted condition in the cruise control servo circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0581 Speed Control Switch 1 Circuit High Possible causes – Faulty Cruise Control Multifunction Switch– Cruise Control Multifunction Switch harness is open or shorted– Cruise Control Multifunction Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Cruise control system inoperative

P0582 Speed Control Vacuum Solenoid Condition Possible causes – Faulty Vacuum Solenoid– Vacuum Solenoid harness is open or short– Vacuum Solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Cruise control system inoperative

P0583 Cruise Control Vacuum Control Circuit Low OBD Code: System: Subsystem:  P0583 – (ASE)  Powertrain  Vehicle Speed Control, Idle Controls, and Auxiliary Inputs Trouble Code Description: Cruise Control Vacuum Control Circuit Low Location: Analysis: Possible Causes:    End of Range – Circuit Lower Than Expected   Tech description:

P0584 Cruise Control Vacuum Control Circuit High OBD Code: System: Subsystem:  P0584 – (ASE)  Powertrain  Vehicle Speed Control, Idle Controls, and Auxiliary Inputs Trouble Code Description: Cruise Control Vacuum Control Circuit High Location: Analysis: Possible Causes:    End of Range – Circuit Higher Than Expected   Tech description:

P0585 Speed Control Switch Correlation Error Possible causes – Faulty clock spring– Clock spring harness is open or shorted– Clock spring circuit poor electrical connection Tech description This code can be set if two different control buttons in the cruise control system are press at the same time for more than 450 milliseconds. Since it…

P0586 Speed Control Vent Solenoid Condition Possible causes – Open or short speed control vent solenoid circuit– Poor speed control vent solenoid electrical connection– Faulty Speed Conrtol Vent Solenoid What about the obd code? Open or shorted condition in the vent solenoid circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0587 Cruise Control Vent Control Circuit Low Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0579 Speed Control Switch 1 Performance Condition Possible causes – Faulty Cruise Control Function Switch– Cruise Control Function Switch harness is open or shorted– Cruise Control Function Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Cruise control system inoperative

P0580 Speed Control Switch 1 Circuit Low Possible causes – Faulty Cruise Control Multifunction Switch– Cruise Control Multifunction Switch harness is open or shorted– Cruise Control Multifunction Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Cruise control system inoperative

P0570 Cruise Control Accel Signal Malfunction Possible causes – Faulty Cruise Control Accel Switch– Cruise Control Accel Switch harness is open or shorted– Cruise Control Accel Switch circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected a fault in the Cruise Control Accel Switch Symptoms – Engine Light…