Category: OBDii Powertrain Codes

P0035 Turbocharger Bypass Valve Control Circuit High Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0035 Description Turbocharger/Supercharger Bypass Valve Control Circuit High is the generic definition for the P0035; however your vehicle’s manufacturer may have a different definition and information for the P0035 code. P0035 Information for specific makes P0035

P0025 Camshaft Position B Timing Over-Retarded Bank 2 Possible causes – Dirty Oil– Variable Valve Timing (VVT) circuit is open or shorted– Oil Control Valve (OCV) circuit is open or shorted– Faulty variable valve timing (VVT)– Faulty oil control valve (OCV)– Damaged Engine Control Module (ECM) Tech description If the engine oil is clean and…

P0026 Intake Valve Control Solenoid Circuit Range/Performance Bank 1 Possible causes – Dirty engine oil– Low engine oil level– Faulty intake valve control solenoid– Intake valve control solenoid harness is open or shorted– Intake valve control solenoid circuit poor electrical connection What about the obd code? ECM monitors OCV stuck while cam signal is normally…

P0027 Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1 Possible causes – Dirty engine oil– Low engine oil level– Faulty exhaust valve control solenoid– Exhaust valve control solenoid harness is open or shorted– Exhaust valve control solenoid circuit poor electrical connection What about the obd code? ECM monitors OCV stuck while cam signal is normally…

P0028 Intake Valve Control Solenoid Circuit Range/Performance Bank 2 Possible causes – Dirty engine oil– Low engine oil level– Faulty intake valve control solenoid– Intake valve control solenoid harness is open or shorted– Intake valve control solenoid circuit poor electrical connection What about the obd code? ECM monitors OCV stuck while cam signal is normally…

P0029 Exhaust Valve Control Solenoid Circuit Range/Performance Bank 2 Possible causes – Dirty engine oil– Low engine oil level– Faulty exhaust valve control solenoid– Exhaust valve control solenoid harness is open or shorted– Exhaust valve control solenoid circuit poor electrical connection What about the obd code? ECM monitors OCV stuck while cam signal is normally…

P0030 HO2S Heater Control Circuit Bank 1 Sensor 1 Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor…

P0031 HO2S Heater Control Circuit Low Bank 1 Sensor 1 Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 harness is open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection– Heated Oxygen Sensor (H2OS) Bank 1 Sensor…

P0016 Crankshaft/Camshaft Correlation Error Bank 1 Sensor 1 Possible causes – Dirty Oil– Engine mechanical problems– Camshaft timing incorrectly set– Faulty camshaft position sensor– Faulty crankshaft position sensor– Faulty actuator assembly Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0016 Description The CVVT (Continuously Variable Valve Timing) system is installed to the…

P0017 Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B Possible causes – Dirty Oil– Engine mechanical problems– Faulty camshaft position sensor– Faulty crankshaft position sensor– Timing belt jumped Tech description Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0017 Hummer Description The Camshaft Position (CMP) actuator system enables the Engine Control…

P0018 Crankshaft/Camshaft Correlation Error Bank 2 Sensor 1 Possible causes – Dirty Oil– Engine mechanical problems– Camshaft timing incorrectly set– Faulty camshaft position sensor– Faulty crankshaft position sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0018 Description The CVVT (Continuously Variable Valve Timing) system is installed to the chain sprocket of…

P0019 Crankshaft Position Camshaft Position Correlation Bank 2 Sensor B Possible causes – Dirty Oil– Variable Valve Timing (VVT) sensor circuit is open or shorted– Variable Valve Timing (VVT) sensor poor electrical connection– Faulty Variable Valve Timing (VVT) sensor– Damaged ECM What about the obd code? The Engine Control Module (ECM) set code P0019 when…

P0020 Camshaft Position A Actuator Circuit Bank 2 Possible causes – Dirty Oil– Faulty variable valve timing (VVT)– Variable Valve Timing (VVT) circuit is open or shorted– Oil Control Valve (OCV) circuit is open or shorted– Faulty oil control valve (OCV)– Damaged Engine Control Module (ECM) Tech description If the engine oil is clean and…

P0021 Intake Valve Timing Control Performance Bank 2 Possible causes – Faulty Intake Valve Timing Control Solenoid Valve– Intake Valve Timing Control Solenoid Valve harness is open or shorted– Intake Valve Timing Control Solenoid Valve circuit poor electrical connection– Faulty Camshaft Position Sensor– Camshaft Position Sensor harness is open or shorted– Camshaft Position Sensor circuit…

P0022 Camshaft Position A Timing Over-Retarded Bank 2 Possible causes – Dirty Oil– Faulty variable valve timing (VVT)– Faulty oil control valve (OCV)– Variable Valve Timing (VVT) harness is open or shorted– Oil Control Valve (OCV) circuit is open or shorted– Damaged Engine Control Module (ECM) Tech description If the engine oil is clean and…

P0023 Camshaft Position B Actuator Circuit Bank 2 Possible causes – Dirty Oil– Faulty variable valve timing (VVT)– Faulty oil control valve (OCV)– Variable Valve Timing (VVT) harness is open or shorted– Oil Control Valve (OCV) circuit is open or shorted– Damaged Engine Control Module (ECM) Tech description If the engine oil is clean and…

P0024 Exhaust Valve Timing Control Performance Bank 2 Possible causes – Faulty exhaust valve timing control solenoid valve– Exhaust valve timing control solenoid valve harness is open or shorted– Exhaust valve timing control solenoid valve circuit poor electrical connection– Faulty Crankshaft Position Sensor (POS)– Faulty Camshaft Position Sensor Tech description Since the exhaust valve timing…

P0012 A Camshaft Position Timing Over Retarded Bank 1 Possible causes – Dirty engine oil– Faulty camshaft actuator– Low engine oil level– Camshaft actuator harness is open or shorted– Camshaft actuator circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Possible Lack/Loss of power– Possible Engine rough idle P0012…

P0013 B Camshaft Position Actuator Solenoid Control Circuit Possible causes – Dirty Oil– Low engine oil level– Faulty Exhaust Camshaft Position Actuator Solenoid– Exhaust Camshaft Position Actuator Solenoid harness is open or shorted– Exhaust Camshaft Position Actuator Solenoid circuit poor electrical connection– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine…

P0014 Exhaust Camshaft Position System Performance Possible causes – Dirty Oil– Low engine oil level– Faulty Exhaust Camshaft Position Actuator Solenoid– Exhaust Camshaft Position Actuator Solenoid harness is open or shorted– Exhaust Camshaft Position Actuator Solenoid circuit poor electrical connection– Faulty Engine Control Module (ECM) Trouble Code Description Symptoms – Engine Light ON (or Service…