P05xx OBD-II Trouble Codes (Speed/Idle Control)

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P05xx OBD-II Trouble Codes (Speed / Idle Control)
OBD-II DTCs - P0500-P0599 - Vehicle Speed Control and Idle Control System

P05xx OBD-II Trouble Codes (Speed / Idle Control)

This is a list of P05xx OBD-II Diagnostic Trouble Codes (DTCs). They all start with P05 (e.g. P0500, P0507, etc.), The first letter P denotes transmission-related codes, the following 05 numbers indicate they refer to vehicle speed control codes and idle speed control systems. The codes below are considered generic as they apply to all makes / models of OBD-II vehicles, although the specific diagnostic and repair steps may differ.

We have literally thousands of other codes listed on the site, use the links below to navigate to other code lists. If you can't find what you are looking for, use our search engine or ask a question on the forums.

Quick links to other trouble codes (starting with): P00xx: P01xx: P02xx: P03xx: P04xx: P05xx: P06xx: P07xx: P08xx: P09xx: P0Axx: P0Bxx: P0Cxx: P1 ***: P20xx: P21xx: P22xx: P23xx: P24xx: P25xx: P26xx: P27xx: P28 / P29 / P2A / P2B: P34xx

For all other codes not listed in the links above or below, see our list of major trouble codes.

OBD-II DTCs - P0500-P0599 - Vehicle Speed Control and Idle Control System

P0500 Vehicle speed sensor "A" Malfunction
P0501 Vehicle Speed Sensor "A" Range / Performance
P0502 Low input signal of the vehicle speed sensor "A"
P0503 Vehicle speed sensor "A" unstable / unstable / high
P0504 Brake Switch "A" / "B" Correlation
P0505 Malfunction of the idle speed control system
P0506 Idle speed control system speed lower than expected
P0507 Idle speed control system speed higher than expected
P0508 Low Idle Air Control System Circuit
P0509 High Idle Air Control Circuit
P050A Cold Cranking Idle Speed Monitoring System Performance
P050B Cold start ignition time
P050C Cold start engine Coolant temperature
P050D Cold start, rough idle
P050E Too low engine exhaust gas temperature during cold start
P050F Too low vacuum in the emergency braking system
P0510 Malfunction of the closed throttle position switch
P0511 Idle Air Control Circuit
P0512 Starter request circuit
P0513 Wrong Immobilizer Key
P0514 Battery temperature sensor circuit out of range / performance
P0515 Battery Temperature Sensor Circuit
P0516 Low battery temperature sensor circuit
P0517 High battery temperature sensor circuit
P0518 Idle Speed Control Circuit Malfunction
P0519 Idle Speed Monitoring System Performance
P051A Crankcase pressure sensor circuit
P051B Crankcase Pressure Sensor Circuit Range / Performance
P051C Low crankcase pressure sensor circuit
P051D High crankcase pressure sensor circuit
P051E Unstable / unstable crankcase pressure sensor circuit
P051F Positive crankcase ventilation filter limitation
P0520 Engine Oil Pressure Sensor / Switch Circuit Malfunction
P0521 Engine oil pressure sensor / switch circuit out of range / performance
P0522 Engine Oil Pressure Sensor / Switch Circuit Low Voltage
P0523 Engine Oil Pressure Sensor / Switch Circuit High Voltage
P0524 Engine oil pressure too low
P0525 Cruise control servo circuit out of performance range
P0526 Fan speed sensor circuit
P0527 Fan speed sensor circuit range / performance
P0528 No signal in the fan speed sensor circuit
P0529 Fan Speed Sensor Circuit Malfunction
P052A Cold start "A", camshaft position timing too extended, bank 1
P052B Cold start "A", timing of the camshaft position too late, bank 1
P052C Cold start "A", camshaft position timing - extended, bank 2
P052D Cold start "A", timing of the camshaft position too late, bank 2
P052E Positive pressure crankcase ventilation regulator valve performance
P052F ISO / SAE Reserved
P0530 Air Conditioner Refrigerant Pressure Sensor "A"
P0531 A / C Refrigerant Pressure Sensor "A" Circuit Range / Performance
P0532 Low A / C Refrigerant Pressure Sensor Circuit
P0533 A high refrigerant pressure sensor A / C
P0534 Loss of refrigerant charge in the air conditioner
P0535 A / C Evaporator Temperature Sensor Circuit
P0536 A / C Evaporator Temperature Sensor Circuit Out of Range / Performance
P0537 Low indicator circuit of the air conditioner evaporator temperature sensor
P0538 A high air conditioner evaporator temperature sensor circuit
P0539 A / C Evaporator Temperature Sensor Circuit Malfunction
P053A Positive crankcase heater control circuit / open
P053B Positive crankcase ventilation heater control circuit low
P053C Positive signal of the crankcase heater control circuit, high signal level
P053D, P053E, P053F ISO / SAE Reserved
P0540 Intake Air Heater "A" Circuit
P0541 Intake Air Heater "A" Low in the circuit
P0542 Intake air heater "A" high signal level
P0543 Intake air heater "A" Open circuit
P0544 Exhaust Gas Temperature Sensor Circuit (Bank 1 Sensor 1)
P0545 Low signal level in the exhaust gas temperature sensor circuit (block 1, sensor 1)
P0546 High signal in the exhaust gas temperature sensor circuit (block 1, sensor 1)
P0547 Exhaust Gas Temperature Sensor Circuit (Bank 2 Sensor 1)
P0548 Low signal level in the exhaust gas temperature sensor circuit (block 2, sensor 1)
P0549 High signal in the exhaust gas temperature sensor circuit (block 2, sensor 1)
P054A "Cold start" "B", camshaft position timing - increased, bank 1
P054B Cold start "B", timing of the camshaft position too late, bank 1
P054C Cold start "B", camshaft position timing - extended, bank 2
P054D Cold start "B", timing of the camshaft position too late, bank 2
P054E, P054F ISO / SAE Reserved
P0550 Power steering pressure sensor circuit malfunction
P0551 Power steering pressure sensor circuit out of performance range
P0552 Low input of the pressure sensor circuit in the power steering
P0553 High input signal of the pressure sensor circuit in the power steering
P0554 Power steering pressure sensor circuit malfunction
P0555 Brake Booster Pressure Sensor Circuit
P0556 Brake Booster Pressure Sensor Circuit Range / Performance
P0557 Low brake booster pressure sensor circuit
P0558 A high brake booster pressure sensor circuit
P0559 Brake Booster Pressure Sensor Circuit Malfunction
P055A, P055B, P055C, P055D, P055E, P055F ISO / SAE Reserved
P0560 System Voltage Malfunction
P0561 Unstable voltage in the system
P0562 Low system voltage
P0563 System Voltage High
P0564 Multi-function input circuit "A" cruise control
P0565 Cruise control enable signal malfunction
P0566 Cruise Control Off Signal Malfunction
P0567 Cruise Control Resume Signal Malfunction
P0568 Cruise control setting signal malfunction
P0569 Cruise control system coasting signal malfunction
P056A Cruise control signal "Increase distance"
P056B Signal cruise control "Decrease the distance"
P056C, P056D, P056E, P056F ISO / SAE Reserved
P0570 Cruise Control Acceleration Signal Malfunction
P0571 Cruise Control / Brake Switch Circuit Malfunction
P0572 Cruise control/brake switch - circuit low
P0573 High rate of the cruise control / brake switch circuit
P0574 Cruise control system - vehicle speed too high
P0575 Cruise Control Input Circuit
P0576 Low rate of the input circuit of the cruise control
P0577 A high rate of the cruise control input circuit
P0578 Multi-function input "A" circuit of the cruise control is stuck
P0579 Multi-function input circuit "A" cruise control out of range / performance
P057A, P057B, P057C, P057D, P057E, P057F ISO / SAE Reserved
P0580 Low signal circuit of the multifunctional input "A" cruise control
P0581 High signal level in the multi-function input "A" circuit of the cruise control
P0582 Cruise control vacuum control circuit / open
P0583 Low rate of the cruise control vacuum control circuit
P0584 High signal in the cruise control vacuum control circuit
P0585 Correlation of multi-function input "A" / "B" cruise control
P0586 Cruise Control Vent Control Circuit/Open
P0587 Low rate of the cruise control air vent control circuit
P0588 A high rate of the cruise control air vent control circuit
P0589 Multi-function input circuit "B" cruise control
P058A, P058B, P058C, P058D, P058E, P058F ISO / SAE Reserved
P0590 Stuck multi-function input "B" circuit of the cruise control
P0591 Cruise Control Multifunction Input "B" Circuit Range / Performance
P0592 Low signal circuit of the multifunctional input "B" cruise control
P0593 High signal level in the multi-function input "B" circuit of the cruise control
P0594 Cruise Control Servo Circuit / Open
P0595 Low rate of the cruise control servo control circuit
P0596 A high rate of the cruise control servo control circuit
P0597 Thermostat Heater Control Circuit / Open
P0598 Low rate of the thermostat heater control circuit
P0599 A high rate of the thermostat heater control circuit
P059A – P05FF ISO / SAE Reserved

Next: Trouble Codes P0600-P0699

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