Code Interpretation Code Interpretation
P0501 Vehicle Speed Sens Range/Perf
P0502 Vehicle Speed Sens Low Input
P0503 Vehicle Speed Sens Noisy
P0504 Brake Switch A/B Correlation
P0505 Idle Ctrl Sys Error
P0506 Idle Ctrl Sys RPM Lower Than Expected
P0507 Idle Ctrl Sys RPM Higher Than Expected
P0508 Idle Ctrl Sys Circ Low
P0509 Idle Ctrl Sys Circ High
P0510 Closed Throttle Pos Switch Error
P0511 Idle Air Ctrl Circ
P0512 Starter Request Circ
P0513 Incorrect Immobilizer Key
P0514 Battery Temp Sens Circ Range/Perf
P0515 Battery Temp Sens Circ
P0516 Battery Temp Sens Circ Low
P0517 Battery Temp Sens Circ High
P0518 Idle Air Ctrl Circ Interm.
P0519 Idle Air Ctrl System Perf
P0520 Eng Oil Pres Sens/Switch Circ Error
P0521 Eng Oil Pres Sens/Switch Circ Range/Perf
P0522 Eng Oil Pres Sens/Switch Circ Low Voltage
P0523 Eng Oil Pres Sens/Switch Circ High Voltage
P0524 Eng Oil Pres Too Low
P0525 Cruise Ctrl Servo Ctrl Circ Range/Perf
P0526 Fan Speed Sens Circ
P0527 Fan Speed Sens Circ Range/Perf
P0528 Fan Speed Sens Circ No Signal
P0529 Fan Speed Sens Circ Interm.
P0530 A/C Refrigerant Pres Sens Circ Error
P0531 A/C Refrigerant Pres Sens Circ Range/Perf
P0532 A/C Refrigerant Pres Sens Circ Low Input
P0533 A/C Refrigerant Pres Sens Circ High Input
P0534 Air Conditioner Refrigerant Charge Loss
P0535 A/C Evaporator Temp Sens Circ
P0536 A/C Evaporator Temp Sens Circ Range/Perf
P0537 A/C Evaporator Temp Sens Circ Low
P0538 A/C Evaporator Temp Sens Circ High
P0539 A/C Evaporator Temp Sens Circ Interm.
P0540 Manf Intake Air Heater Circ
P0541 Manf Intake Air Heater Circ Low
P0542 Manf Intake Air Heater Circ High
P0543 1) Intake Air Heater A Circ Open
P0544 EGT Sens Circ bank1
P0545 EGT Sens Circ Low bank1
P0546 EGT Sens Circ High bank1
P0547 EGT Sens Circ bank2
P0548 EGT Sens Circ Low bank2
P0549 EGT Sens Circ High bank2
P0550 Power Steering Pres Sens Circ Error
P0551 Power Steering Pres Sens Circ Range/Perf
P0552 Power Steering Pres Sens Circ Low Input
P0553 Power Steering Pres Sens Circ High Input
P0554 Power Steering Pres Sens Circ Interm.
P0555 Brake Booster Pressure Sens Circ
P0556 Brake Booster Pressure Sens Circ Range/Perf
P0557 Brake Booster Pressure Sens Circ Low Input
P0558 Brake Booster Pressure Sens Circ High Input
P0559 Brake Booster Pressure Sens Circ Interm.
P0560 Sys Voltage Error
P0561 Sys Voltage Unstable
P0562 Sys Voltage Low
P0563 Sys Voltage High
P0564 Cruise Ctrl Multi-Function Input Signal
P0565 Cruise Ctrl ON Signal Error
P0566 Cruise Ctrl OFF Signal Error
P0567 Cruise Ctrl RESUME Signal Error
P0568 Cruise Ctrl SET Signal Error
P0569 Cruise Ctrl COAST Signal Error
P0570 Cruise Ctrl ACCEL Signal Error
P0571 Cruise Ctrl/Brake Switch A Circ Fail
P0572 Cruise Ctrl/Brake Switch A Circ Low
P0573 Cruise Ctrl/Brake Switch A Circ High
P0574 Cruise Ctrl Sys Vehicle Speed Too High
P0575 Cruise Ctrl Input Circ
P0576 Cruise Ctrl Input Circ Low
P0577 Cruise Ctrl Input Circ High
P0578 Cruise Ctrl Multi-Function Input A Circ Stuck
P0579 Cruise Ctrl Multi-Function Input A Circ Range/Perf
P0580 2) Cruise Ctrl Multi-Function Input A Circ Low
P0581 2) Cruise Ctrl Multi-Function Input A Circ High
P0582 Cruise Ctrl Vacuum Ctrl Circ/Open
P0583 Cruise Ctrl Vacuum Ctrl Circ Low
P0584 Cruise Ctrl Vacuum Ctrl Circ High
P0585 Cruise Ctrl Multi-Function Input A/B Correlation
P0586 Cruise Ctrl Vent Ctrl Circ/Open
P0587 Cruise Ctrl Vent Ctrl Circ Low
P0588 Cruise Ctrl Vent Ctrl Circ High
P0589 Cruise Ctrl Multi-Function Input B Circ
P0590 Cruise Ctrl Multi-Function Input B Circ Stuck
P0591 Cruise Ctrl Multi-Function Input B Circ Range/Perf
P0592 Cruise Ctrl Multi-Function Input B Circ Low
P0593 Cruise Ctrl Multi-Function Input B Circ High
P0594 Cruise Ctrl Servo Ctrl Circ/Open
P0595 Cruise Ctrl Servo Ctrl Circ Low
P0596 Cruise Ctrl Servo Ctrl Circ High
P0597 Thermostat Heater Ctrl Circ/Open
P0598 Thermostat Heater Ctrl Circ Low
P0599 Thermostat Heater Ctrl Circ High
P0600 Serial Comm Link Error
P0601 Internal Ctrl Mod Mem Check Sum Error
P0602 Ctrl Mod Programming Error
P0603 Internal Ctrl Mod KAM Error
P0604 Internal Ctrl Mod RAM Error
P0605 Internal Ctrl Mod ROM Error
P0606 PCM Processor Fault
P0607 Powertrain Ctrl Mod Perf
P0608 Powertrain Ctrl Mod VSS Output A Error
P0609 Powertrain Ctrl Mod VSS Output B Error
P0610 Powertrain Ctrl Mod Vehicle Options Error
P0611 Fuel Injector Ctrl Mod Perf
P0612 Fuel Injector Ctrl Mod Ctrl Circ
P0613 TCM Processor
P0614 ECM / TCM Incompatible
P0615 Starter Relay Circ
P0616 Starter Relay Circ Low
P0617 Starter Relay Circ High
P0618 Alternative Fuel Ctrl Mod KAM Error
P0619 Alternative Fuel Ctrl Mod RAM/ROM Error
P0620 Generator Ctrl Circ Error
P0621 Generator Lamp L Ctrl Circ Error
P0622 Generator Field F Ctrl Circ Error
P0623 Generator Lamp Ctrl Circ Error
P0624 Fuel Cap Lamp Ctrl Circ Error
P0625 Generator Field/F Terminal Circ Low
P0626 Generator Field/F Terminal Circ High
P0627 Fuel Pump A Ctrl Circ /Open
P0628 Fuel Pump A Ctrl Circ Low
P0629 Fuel Pump A Ctrl Circ High
P0630 VIN Not Programmed/Mismatch - ECM/PCM
P0631 VIN Not Programmed/Mismatch - TCM
P0632 Odometer Not Programmed - ECM/PCM
P0633 Immobilizer Key Not Programmed - ECM/PCM
P0634 PCM/ECM/TCM Internal Temp Too High
P0635 Power Steering Ctrl Circ
P0636 Power Steering Ctrl Circ Low
P0637 Power Steering Ctrl Circ High
P0638 Throttle Actuator Ctrl Range/Perf bank1
P0639 Throttle Actuator Ctrl Range/Perf bank2
P0640 Manf Intake Air Heater Ctrl Circ
P0641 Sens Reference Voltage A Circ/Open
P0642 Sens Reference Voltage A Circ Low
P0643 Sens Reference Voltage A Circ High
P0644 Driver Display Serial Comm Circ
P0645 A/C Clutch Relay Ctrl Circ
P0646 A/C Clutch Relay Ctrl Circ Low
P0647 A/C Clutch Relay Ctrl Circ High
P0648 Immobilizer Lamp Ctrl Circ
P0649 Cruise Ctrl Lamp Ctrl Circ
P0650 Error Indicator Lamp (MIL) Ctrl Circ Error
P0651 Sens Reference Voltage B Circ/Open
P0652 Sens Reference Voltage B Circ Low
P0653 Sens Reference Voltage B Circ High
P0654 Eng RPM Output Circ Error
P0655 Eng Hot Lamp Output Ctrl Circ Malfunction
P0656 Fuel Level Output Circ Error
P0657 Actuator Supply Voltage A Circ/Open
P0658 Actuator Supply Voltage A Circ Low
P0659 Actuator Supply Voltage A Circ High
P0660 Intake Manf Tuning Valve Ctrl Circ bank1
P0661 Intake Manf Tuning Valve Ctrl Circ Low bank1
P0662 Intake Manf Tuning Valve Ctrl Circ High bank1
P0663 Intake Manf Tuning Valve Ctrl Circ bank2
P0664 Intake Manf Tuning Valve Ctrl Circ Low bank2
P0665 Intake Manf Tuning Valve Ctrl Circ High bank2
P0666 Cruise 'On Signal Error
P0667 Cruise 'Resume' Signal Error
P0501 Vehicle Speed Sens Range/Perf
P0502 Vehicle Speed Sens Low Input
P0503 Vehicle Speed Sens Noisy
P0504 Brake Switch A/B Correlation
P0505 Idle Ctrl Sys Error
P0506 Idle Ctrl Sys RPM Lower Than Expected
P0507 Idle Ctrl Sys RPM Higher Than Expected
P0508 Idle Ctrl Sys Circ Low
P0509 Idle Ctrl Sys Circ High
P0510 Closed Throttle Pos Switch Error
P0511 Idle Air Ctrl Circ
P0512 Starter Request Circ
P0513 Incorrect Immobilizer Key
P0514 Battery Temp Sens Circ Range/Perf
P0515 Battery Temp Sens Circ
P0516 Battery Temp Sens Circ Low
P0517 Battery Temp Sens Circ High
P0518 Idle Air Ctrl Circ Interm.
P0519 Idle Air Ctrl System Perf
P0520 Eng Oil Pres Sens/Switch Circ Error
P0521 Eng Oil Pres Sens/Switch Circ Range/Perf
P0522 Eng Oil Pres Sens/Switch Circ Low Voltage
P0523 Eng Oil Pres Sens/Switch Circ High Voltage
P0524 Eng Oil Pres Too Low
P0525 Cruise Ctrl Servo Ctrl Circ Range/Perf
P0526 Fan Speed Sens Circ
P0527 Fan Speed Sens Circ Range/Perf
P0528 Fan Speed Sens Circ No Signal
P0529 Fan Speed Sens Circ Interm.
P0530 A/C Refrigerant Pres Sens Circ Error
P0531 A/C Refrigerant Pres Sens Circ Range/Perf
P0532 A/C Refrigerant Pres Sens Circ Low Input
P0533 A/C Refrigerant Pres Sens Circ High Input
P0534 Air Conditioner Refrigerant Charge Loss
P0535 A/C Evaporator Temp Sens Circ
P0536 A/C Evaporator Temp Sens Circ Range/Perf
P0537 A/C Evaporator Temp Sens Circ Low
P0538 A/C Evaporator Temp Sens Circ High
P0539 A/C Evaporator Temp Sens Circ Interm.
P0540 Manf Intake Air Heater Circ
P0541 Manf Intake Air Heater Circ Low
P0542 Manf Intake Air Heater Circ High
P0543 1) Intake Air Heater A Circ Open
P0544 EGT Sens Circ bank1
P0545 EGT Sens Circ Low bank1
P0546 EGT Sens Circ High bank1
P0547 EGT Sens Circ bank2
P0548 EGT Sens Circ Low bank2
P0549 EGT Sens Circ High bank2
P0550 Power Steering Pres Sens Circ Error
P0551 Power Steering Pres Sens Circ Range/Perf
P0552 Power Steering Pres Sens Circ Low Input
P0553 Power Steering Pres Sens Circ High Input
P0554 Power Steering Pres Sens Circ Interm.
P0555 Brake Booster Pressure Sens Circ
P0556 Brake Booster Pressure Sens Circ Range/Perf
P0557 Brake Booster Pressure Sens Circ Low Input
P0558 Brake Booster Pressure Sens Circ High Input
P0559 Brake Booster Pressure Sens Circ Interm.
P0560 Sys Voltage Error
P0561 Sys Voltage Unstable
P0562 Sys Voltage Low
P0563 Sys Voltage High
P0564 Cruise Ctrl Multi-Function Input Signal
P0565 Cruise Ctrl ON Signal Error
P0566 Cruise Ctrl OFF Signal Error
P0567 Cruise Ctrl RESUME Signal Error
P0568 Cruise Ctrl SET Signal Error
P0569 Cruise Ctrl COAST Signal Error
P0570 Cruise Ctrl ACCEL Signal Error
P0571 Cruise Ctrl/Brake Switch A Circ Fail
P0572 Cruise Ctrl/Brake Switch A Circ Low
P0573 Cruise Ctrl/Brake Switch A Circ High
P0574 Cruise Ctrl Sys Vehicle Speed Too High
P0575 Cruise Ctrl Input Circ
P0576 Cruise Ctrl Input Circ Low
P0577 Cruise Ctrl Input Circ High
P0578 Cruise Ctrl Multi-Function Input A Circ Stuck
P0579 Cruise Ctrl Multi-Function Input A Circ Range/Perf
P0580 2) Cruise Ctrl Multi-Function Input A Circ Low
P0581 2) Cruise Ctrl Multi-Function Input A Circ High
P0582 Cruise Ctrl Vacuum Ctrl Circ/Open
P0583 Cruise Ctrl Vacuum Ctrl Circ Low
P0584 Cruise Ctrl Vacuum Ctrl Circ High
P0585 Cruise Ctrl Multi-Function Input A/B Correlation
P0586 Cruise Ctrl Vent Ctrl Circ/Open
P0587 Cruise Ctrl Vent Ctrl Circ Low
P0588 Cruise Ctrl Vent Ctrl Circ High
P0589 Cruise Ctrl Multi-Function Input B Circ
P0590 Cruise Ctrl Multi-Function Input B Circ Stuck
P0591 Cruise Ctrl Multi-Function Input B Circ Range/Perf
P0592 Cruise Ctrl Multi-Function Input B Circ Low
P0593 Cruise Ctrl Multi-Function Input B Circ High
P0594 Cruise Ctrl Servo Ctrl Circ/Open
P0595 Cruise Ctrl Servo Ctrl Circ Low
P0596 Cruise Ctrl Servo Ctrl Circ High
P0597 Thermostat Heater Ctrl Circ/Open
P0598 Thermostat Heater Ctrl Circ Low
P0599 Thermostat Heater Ctrl Circ High
P0600 Serial Comm Link Error
P0601 Internal Ctrl Mod Mem Check Sum Error
P0602 Ctrl Mod Programming Error
P0603 Internal Ctrl Mod KAM Error
P0604 Internal Ctrl Mod RAM Error
P0605 Internal Ctrl Mod ROM Error
P0606 PCM Processor Fault
P0607 Powertrain Ctrl Mod Perf
P0608 Powertrain Ctrl Mod VSS Output A Error
P0609 Powertrain Ctrl Mod VSS Output B Error
P0610 Powertrain Ctrl Mod Vehicle Options Error
P0611 Fuel Injector Ctrl Mod Perf
P0612 Fuel Injector Ctrl Mod Ctrl Circ
P0613 TCM Processor
P0614 ECM / TCM Incompatible
P0615 Starter Relay Circ
P0616 Starter Relay Circ Low
P0617 Starter Relay Circ High
P0618 Alternative Fuel Ctrl Mod KAM Error
P0619 Alternative Fuel Ctrl Mod RAM/ROM Error
P0620 Generator Ctrl Circ Error
P0621 Generator Lamp L Ctrl Circ Error
P0622 Generator Field F Ctrl Circ Error
P0623 Generator Lamp Ctrl Circ Error
P0624 Fuel Cap Lamp Ctrl Circ Error
P0625 Generator Field/F Terminal Circ Low
P0626 Generator Field/F Terminal Circ High
P0627 Fuel Pump A Ctrl Circ /Open
P0628 Fuel Pump A Ctrl Circ Low
P0629 Fuel Pump A Ctrl Circ High
P0630 VIN Not Programmed/Mismatch - ECM/PCM
P0631 VIN Not Programmed/Mismatch - TCM
P0632 Odometer Not Programmed - ECM/PCM
P0633 Immobilizer Key Not Programmed - ECM/PCM
P0634 PCM/ECM/TCM Internal Temp Too High
P0635 Power Steering Ctrl Circ
P0636 Power Steering Ctrl Circ Low
P0637 Power Steering Ctrl Circ High
P0638 Throttle Actuator Ctrl Range/Perf bank1
P0639 Throttle Actuator Ctrl Range/Perf bank2
P0640 Manf Intake Air Heater Ctrl Circ
P0641 Sens Reference Voltage A Circ/Open
P0642 Sens Reference Voltage A Circ Low
P0643 Sens Reference Voltage A Circ High
P0644 Driver Display Serial Comm Circ
P0645 A/C Clutch Relay Ctrl Circ
P0646 A/C Clutch Relay Ctrl Circ Low
P0647 A/C Clutch Relay Ctrl Circ High
P0648 Immobilizer Lamp Ctrl Circ
P0649 Cruise Ctrl Lamp Ctrl Circ
P0650 Error Indicator Lamp (MIL) Ctrl Circ Error
P0651 Sens Reference Voltage B Circ/Open
P0652 Sens Reference Voltage B Circ Low
P0653 Sens Reference Voltage B Circ High
P0654 Eng RPM Output Circ Error
P0655 Eng Hot Lamp Output Ctrl Circ Malfunction
P0656 Fuel Level Output Circ Error
P0657 Actuator Supply Voltage A Circ/Open
P0658 Actuator Supply Voltage A Circ Low
P0659 Actuator Supply Voltage A Circ High
P0660 Intake Manf Tuning Valve Ctrl Circ bank1
P0661 Intake Manf Tuning Valve Ctrl Circ Low bank1
P0662 Intake Manf Tuning Valve Ctrl Circ High bank1
P0663 Intake Manf Tuning Valve Ctrl Circ bank2
P0664 Intake Manf Tuning Valve Ctrl Circ Low bank2
P0665 Intake Manf Tuning Valve Ctrl Circ High bank2
P0666 Cruise 'On Signal Error
P0667 Cruise 'Resume' Signal Error
