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Diagnostic Trouble Code numbers are read by plugging a code reader or scan tool into the vehicle diagnostic connector (usually located under the instrument panel near the steering column). The presence of a code will turn on the Check Engine Light. The light will remain on until the code has been erased. The code number does not tell you which part has failed. It only indicates a possible fault has been detected in the circuit, system or sensor described. Further testing is usually required to isolate the fault BEFORE repairs are made. For diagnostic charts and vehicle specific repair information, refer to a service manual, or the OEM technical website.
DTC CODES P0500 to P0599
P0500....Vehicle Speed Sensor
P0501....Vehicle Speed Sensor Range/Performance
P0502....Vehicle Speed Sensor Circuit Low Input
P0503....Vehicle Speed Sensor Intermittent/Erratic/High
P0505....Idle Control System
P0506....Idle Control System RPM Lower Than Expected
P0507....Idle Control System RPM Higher Than Expected
P0508....Idle Control System Circuit Low
P0509....Idle Control System Circuit High
P0510....Closed Throttle Position Switch
P0512....Starter Request Circuit
P0513....Incorrect Immobilizer Key
P0515....Battery Temperature Sensor Circuit
P0516....Battery Temperature Sensor Circuit Low
P0517....Battery Temperature Sensor Circuit High
P0520....Engine Oil Pressure Sensor/Switch Circuit
P0521....Engine Oil Pressure Sensor/Switch Range/Performance
P0522....Engine Oil Pressure Sensor/Switch Low Voltage
P0523....Engine Oil Pressure Sensor/Switch High Voltage
P0524....Engine Oil Pressure Too Low (Click Here for help troubleshooting low oil pressure)
P0530....A/C Refrigerant Pressure Sensor Circuit (Click Here for help troubleshooting A/C cooling problems)
P0531....A/C Refrigerant Pressure Sensor Circuit Range/Performance
P0532....A/C Refrigerant Pressure Sensor Circuit Low Input
P0533....A/C Refrigerant Pressure Sensor Circuit High Input
P0534....Air Conditioner Refrigerant Charge Loss (Click Here for help on how to recharge your A/C system)
P0540....Intake Air Heater Circuit
P0541....Intake Air Heater Circuit Low
P0542....Intake Air Heater Circuit High
P0544....Exhaust Gas Temperature Sensor Circuit (Bank 1)
P0545....Exhaust Gas Temperature Sensor Circuit Low (Bank 1)
P0546....Exhaust Gas Temperature Sensor Circuit High (Bank 1)
P0547....Exhaust Gas Temperature Sensor Circuit (Bank 2)
P0548....Exhaust Gas Temperature Sensor Circuit Low (Bank 2)
P0549....Exhaust Gas Temperature Sensor Circuit High (Bank 2)
P0550....Power Steering Pressure Sensor Circuit (Click Here for help Troubleshooting Power Steering Problems)
P0551....Power Steering Pressure Sensor Circuit Range/Performance
P0552....Power Steering Pressure Sensor Circuit Low Input
P0553....Power Steering Pressure Sensor Circuit High Input
P0554....Power Steering Pressure Sensor Circuit Intermittent
P0560....System Voltage
P0561....System Voltage Unstable
P0562....System Voltage Low (Click Here for help on diagnosing Charging problems)
P0563....System Voltage High
P0564....Cruise Control Multi-Function Input Signal
P0565....Cruise Control On Signal
P0566....Cruise Control Off Signal
P0567....Cruise Control Resume Signal
P0568....Cruise Control Set Signal
P0569....Cruise Control Coast Signal
P0570....Cruise Control Accel Signal
P0571....Cruise Control/Brake Switch A Circuit
P0572....Cruise Control/Brake Switch A Circuit Low
P0573....Cruise Control/Brake Switch A Circuit High
P0574....Cruise Control System - Vehicle Speed Too High
P0575....Cruise Control Input Circuit
P0576....Cruise Control Input Circuit Low
P0577....Cruise Control input Circuit High
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