Category: OBDii Powertrain Codes

P0519 Idle Control System Malfunction Possible causes – Faulty Idle Air Control Valve– Vacuum leak– Idle Air Control Valve harness is open or shorted– Idle Air Control Valve circuit poor electrical connection Tech description Clean Idle Air Control Valve (IACV) – Warm up Engine– Remove the intercooler and set aside– Disconnect the Mass Airflow sensor…

P0520 Engine Oil Pressure Sensor/Switch Circuit Malfunction Possible causes – Low oil level or motor mechanical fault– Faulty oil pressure sensor– Oil Pressure Sensor harness is open or shorted– Oil Pressure Sensor circuit poor electrical connection What about the obd code? The P0520 is detected when the circuit from oil pressure sensor to PCM is…

P0521 Engine Oil Pressure Sensor/Switch Circuit Range/Performance Possible causes – Low oil level or motor mechanical fault– Faulty oil pressure sensor– Oil Pressure Sensor harness is open or shorted– Oil Pressure Sensor circuit poor electrical connection What about the obd code? The P0521 is detected when the signal sent from oil pressure sensor to PCM…

P0522 Engine Oil Pressure Sensor Circuit Low Voltage Possible causes – Low oil level or motor mechanical fault– Faulty Oil Pressure sensor– Oil Pressure Sensor harness is open or shorted– Oil Pressure Sensor circuit poor electrical connection What about the obd code? The P0522 is set when the Powertrain Control Module (PCM) senses a signal…

P0510 Closed Throttle Position Switch Malfunction Possible causes – Throttle Position Switch (TPS) Adjustment– Faulty Throttle Position Switch (TPS)– Throttle Position Switch (TPS) harness open or shorted– Throttle Position Switch (TPS) circuit poor electrical connection Tech description Adjusting the Throttle Position Switch (TPS) may take care of the problem, if the problem persist the TPS…

P0511 Idle Control System Malfunction Possible causes – Idle Air Control Valve (IACV)/Auxiliary Air Control (AAC) Valve harness is open or shorted– Idle Air Control Valve (IACV)/Auxiliary Air Control (AAC) Valve circuit poor electrical connection– Faulty Idle Air Control Valve (IACV)/Auxiliary Air Control (AAC) Valve What about the obd code? The P0511 code is set…

P0512 Starter Request Circuit Possible causes – Open or short circuit condition– Poor electrical connection Tech description For models the P0512 code could be triggered by the immobilizer system. The immobilizer system is not receiving the signal from the antenna ring, replacing the antenna ring and clear the code usually takes care of the problem….

P0513 Incorrect Immobilizer Key Possible causes – Deterrent key not programmed to vheicle– Faulty Deterrent key– Fualty ignition switch– Poor electrical connection for Deterrent circuit components Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No or hard engine start situation P0513 Description The Engine Control Module (ECM), the Powertrain Interface Module (PIM),…

P0514 Temperature Sensor Rationality Possible causes – Faulty Battery Temperature Sensor– Battery Temperature Sensor harness is open or shorted– Battery Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine overheating P0514 Description The Battery Temperature Sensor (BTS) is attached to the battery tray located under the…

P0515 Battery Temperature Sensor Circuit OBD Code: System: Subsystem:  P0515 – (ASE)  Powertrain  Vehicle Speed Control, Idle Controls, and Auxiliary Inputs Trouble Code Description: Battery Temperature Sensor Circuit Location: Analysis: Possible Causes:    Circuit Issue   Tech description:

P0516 Battery Temperature Sensor Circuit Low Possible causes – Faulty Battery Temperature Sensor– Battery Temperature Sensor harness is open or shorted– Battery Temperature Sensor circuit poor electrical connection What about the obd code? Battery temperature sensor output value is 0.2 V or less for 0.5 seconds or more with the ignition switch ON Symptoms –…

P0517 Battery Temperature Sensor Circuit High Possible causes – Faulty Battery Temperature Sensor– Battery Temperature Sensor harness is open or shorted– Battery Temperature Sensor circuit poor electrical connection What about the obd code? Battery temperature sensor output value is 4.8 V or more for 0.5 seconds or more with the ignition switch ON Symptoms –…

P0518 Idle Air Control Circuit Intermittent Possible causes – Faulty Idle Air Control Valve– Vacuum leak– Idle Air Control Valve harness is open or shorted– Idle Air Control Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0502 Vehicle Speed Sensor A Low Input Possible causes – Faulty Vehicle Speed Sensor– Vehicle speed sensor harness or connectors is open or shorted– Vehicle speed sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) What about the obd code? The signal sent by the vehicle speed sensor to ECM is too low. Symptoms…

P0503 Vehicle Speed Sensor A Intermittent/Erratic/High Possible causes – Faulty Vehicle Speed Sensor– Vehicle speed sensor harness or connectors is open or shorted– Vehicle speed sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) What about the obd code? The signal sent by the vehicle speed sensor to ECM is too high or intermittent….

P0504 Brake Switch Circuit A / B Correlation Possible causes – Faulty stop lamp switch– Blown stop lamp bulb– Brake switch harness open or shorted– Brake switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0504 Description In addition to turning on the stop lamp, the stop lamp…

P0505 Idle Air Control System Possible causes – Electronic Throttle Control System (ETCS).– Air induction system– PCV hose connection What about the obd code? The ECM regulates the idle speed by opening and closing the throttle valve using the ETCS. The ECM concludes that the idle speed control ECM function is malfunctioning if: 1) the…