| P0500 | Vehicle Speed Sensor 'A' | Medium |
| P0501 | Vehicle Speed Sensor A Range/Performance | Medium |
| P0502 | Vehicle Speed Sensor 'A' Circuit Low Input | Medium |
| P0503 | Vehicle Speed Sensor 'A' Intermittent/Erratic/High | Medium |
| P0504 | Brake Switch 'A'/'B' Correlation | Medium |
| P0505 | Idle Air Control System | Medium |
| P0506 | Idle Air Control System RPM Lower Than Expected | Low |
| P0507 | Idle Air Control System RPM Higher Than Expected | Low |
| P0508 | Idle Air Control System Circuit Low | Medium |
| P0509 | Idle Air Control System Circuit High | Medium |
| P0510 | Closed Throttle Position Switch | Medium |
| P0511 | Idle Air Control Circuit | Medium |
| P0512 | Starter Request Circuit | Medium |
| P0513 | Incorrect Immobilizer Key | Medium |
| P0514 | Battery Temperature Sensor Circuit Range/Performance | Medium |
| P0515 | Battery Temperature Sensor Circuit | Medium |
| P0516 | Battery Temperature Sensor Circuit Low | Medium |
| P0517 | Battery Temperature Sensor Circuit High | Medium |
| P0518 | Idle Air Control Circuit Intermittent | Medium |
| P0519 | Idle Air Control System Performance | Medium |
| P0520 | Engine Oil Pressure Sensor/Switch Circuit | Medium |
| P0521 | Engine Oil Pressure Sensor/Switch Range/Performance | Medium |
| P0522 | Engine Oil Pressure Sensor/Switch Low Voltage | Medium |
| P0523 | Engine Oil Pressure Sensor/Switch High Voltage | High |
| P0524 | Engine Oil Pressure Too Low | Medium |
| P0525 | Cruise Control Servo Control Circuit Range/Performance | Medium |
| P0526 | Fan Speed Sensor Circuit | Medium |
| P0527 | Fan Speed Sensor Circuit Range/Performance | Medium |
| P0528 | Fan Speed Sensor Circuit No Signal | Medium |
| P0529 | Fan Speed Sensor Circuit Intermittent | Medium |
| P0530 | A/C Refrigerant Pressure Sensor 'A' Circuit | Medium |
| P0531 | A/C Refrigerant Pressure Sensor 'A' Circuit Range/Performance | Medium |
| P0532 | A/C Refrigerant Pressure Sensor 'A' Circuit Low | Medium |
| P0533 | A/C Refrigerant Pressure Sensor 'A' Circuit High | Medium |
| P0534 | Air Conditioner Refrigerant Charge Loss | Medium |
| P0535 | A/C Evaporator Temperature Sensor Circuit | Low |
| P0536 | A/C Evaporator Temperature Sensor Circuit Range/Performance | Low |
| P0537 | A/C Evaporator Temperature Sensor Circuit Low | Low |
| P0538 | A/C Evaporator Temperature Sensor Circuit High | Low |
| P0539 | A/C Evaporator Temperature Sensor Circuit Intermittent | Low |
| P0540 | Intake Air Heater 'A' Circuit | Medium |
| P0541 | Intake Air Heater 'A' Circuit Low | Medium |
| P0542 | Intake Air Heater 'A' Circuit High | Medium |
| P0543 | Intake Air Heater 'A' Circuit Open | Medium |
| P0544 | Exhaust Gas Temperature Sensor Circuit | Medium |
| P0545 | Exhaust Gas Temperature Sensor Circuit Low | Medium |
| P0546 | Exhaust Gas Temperature Sensor Circuit High | Medium |
| P0547 | Exhaust Gas Temperature Sensor Circuit | Medium |
| P0548 | Exhaust Gas Temperature Sensor Circuit Low | Medium |
| P0549 | Exhaust Gas Temperature Sensor Circuit High | Medium |
| P0550 | Power Steering Pressure Sensor/Switch Circuit | Medium |
| P0551 | Power Steering Pressure Sensor/Switch Circuit Range/Performance | Medium |
| P0552 | Power Steering Pressure Sensor/Switch Circuit Low Input | Medium |
| P0553 | Power Steering Pressure Sensor/Switch Circuit High Input | Medium |
| P0554 | Power Steering Pressure Sensor/Switch Circuit Intermittent | Medium |
| P0555 | Brake Booster Pressure Sensor Circuit | Medium |
| P0556 | Brake Booster Pressure Sensor Circuit Range/Performance | Medium |
| P0557 | Brake Booster Pressure Sensor Circuit Low Input | Medium |
| P0558 | Brake Booster Pressure Sensor Circuit High Input | Medium |
| P0559 | Brake Booster Pressure Sensor Circuit Intermittent | Medium |
| P0560 | System Voltage Malfunction | Medium |
| P0561 | System Voltage Unstable | Medium |
| P0562 | System Voltage Low | High |
| P0563 | System Voltage High | Medium |
| P0564 | Cruise Control Multi-Function Input 'A' Circuit | Medium |
| P0565 | Cruise Control On Signal | Medium |
| P0566 | Cruise Control Off Signal | Medium |
| P0567 | Cruise Control Resume Signal | Medium |
| P0568 | Cruise Control Set Signal | Medium |
| P0569 | Cruise Control Coast Signal | Medium |
| P0570 | Cruise Control Accelerate Signal | Medium |
| P0571 | Brake Switch 'A' Circuit | Medium |
| P0572 | Brake Switch 'A' Circuit Low | Medium |
| P0573 | Brake Switch 'A' Circuit High | Medium |
| P0574 | Cruise Control System - Vehicle Speed Too High | Medium |
| P0575 | Cruise Control Input Circuit | Medium |
| P0576 | Cruise Control Input Circuit Low | Medium |
| P0577 | Cruise Control Input Circuit High | Medium |
| P0578 | Cruise Control Multi-Function Input 'A' Circuit Stuck | Medium |
| P0579 | Cruise Control Multi-Function Input 'A' Circuit Range/Performance | Medium |
| P0580 | Cruise Control Multi-Function Input 'A' Circuit Low | Medium |
| P0581 | Cruise Control Multi-Function Input 'A' Circuit High | Medium |
| P0582 | Cruise Control Vacuum Control Circuit/Open | Medium |
| P0583 | Cruise Control Vacuum Control Circuit Low | Medium |
| P0584 | Cruise Control Vacuum Control Circuit High | Medium |
| P0585 | Cruise Control Multi-Function Input 'A'/'B' Correlation | Medium |
| P0586 | Cruise Control Vent Control Circuit/Open | Low |
| P0587 | Cruise Control Vent Control Circuit Low | Low |
| P0588 | Cruise Control Vent Control Circuit High | Low |
| P0589 | Cruise Control Multi-Function Input 'B' Circuit | Medium |
| P0590 | Cruise Control Multi-Function Input 'B' Circuit Stuck | Medium |
| P0591 | Cruise Control Multi-Function Input 'B' Circuit Range/Performance | Medium |
| P0592 | Cruise Control Multi-Function Input 'B' Circuit Low | Medium |
| P0593 | Cruise Control Multi-Function Input 'B' Circuit High | Medium |
| P0594 | Cruise Control Servo Control Circuit/Open | Medium |
| P0595 | Cruise Control Servo Control Circuit Low | Medium |
| P0596 | Cruise Control Servo Control Circuit High | Medium |
| P0597 | Thermostat Heater Control Circuit/Open | Medium |
| P0598 | Thermostat Heater Control Circuit Low | Medium |
| P0599 | Thermostat Heater Control Circuit High | Medium |