Category: Chevrolet

P0562 Chevrolet Charging System Low Voltage Possible causes – Low battery charge– Battery defective– Loose or missing alternator drive belt– Faulty alternator– Open or short system voltage circuit Tech description Start by recharging or replacing the battery. What about the obd code? The Engine Control Module (ECM) has detected that the electrical system voltage level…

P0554 Chevrolet Power Steering Pressure Sensor Circuit Intermittent Possible causes – Faulty Power Steering Pressure Sensor– Power Steering Pressure Sensor harness is open or shorted– Power Steering Pressure Sensor circuit poor electrical connection What about the obd code? An intermittent voltage from the Power Steering Pressure Sensor is sent to Engine Control Module (ECM). Symptoms…

P0555 Chevrolet Brake Booster Pressure Sensor Circuit Possible causes – Faulty Brake Booster Pressure Sensor– Brake Booster Pressure Sensor harness is open or shorted– Brake Booster Pressure Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0555 Chevrolet Description Brake booster pressure sensor is connected to brake booster…

P0556 Chevrolet Brake Booster Pressure Sensor Circuit Range/Performance Possible causes – Faulty Brake Booster Pressure Sensor– Brake Booster Pressure Sensor harness is open or shorted– Brake Booster Pressure Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0556 Chevrolet Description Brake booster pressure sensor is connected to brake…

P0557 Chevrolet Brake Booster Pressure Sensor Circuit Low Voltage Possible causes – Faulty Brake Booster Pressure Sensor– Brake Booster Pressure Sensor harness is open or shorted– Brake Booster Pressure Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0557 Chevrolet Description Brake booster pressure sensor is connected to…

P0558 Chevrolet Brake Booster Pressure Sensor Circuit High Voltage Possible causes – Faulty Brake Booster Pressure Sensor– Brake Booster Pressure Sensor harness is open or shorted– Brake Booster Pressure Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0558 Chevrolet Description Brake booster pressure sensor is connected to…

P0549 Chevrolet Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 1 Possible causes – Faulty Exhaust Gas Temperature Sensor– Exhaust Gas Temperature Sensor harness is open or shorted– Exhaust Gas Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0550 Chevrolet Power Steering Pressure Sensor Circuit Malfunction Possible causes – Faulty Power Steering Pressure Sensor– Power Steering Pressure Sensor harness is open or shorted– Power Steering Pressure Sensor circuit poor electrical connection What about the obd code? An excessively low or high voltage from the Power Steering Pressure Sensor is sent to Engine Control…

P0551 Chevrolet Power Steering Pressure Sensor Circuit Range/Performance Possible causes – Faulty Power Steering Pressure Sensor– Power Steering Pressure Sensor harness is open or shorted– Power Steering Pressure Sensor circuit poor electrical connection What about the obd code? An out of range voltage from the Power Steering Pressure Sensor is sent to Engine Control Module…

P0552 Chevrolet Power Steering Pressure Sensor Circuit Low Input Possible causes – Faulty Power Steering Pressure Sensor– Power Steering Pressure Sensor harness is open or shorted– Power Steering Pressure Sensor circuit poor electrical connection What about the obd code? A low voltage from the Power Steering Pressure Sensor is sent to Engine Control Module (ECM)….

P0553 Chevrolet Power Steering Pressure Sensor Circuit High Input Possible causes – Faulty Power Steering Pressure Sensor– Power Steering Pressure Sensor harness is open or shorted– Power Steering Pressure Sensor circuit poor electrical connection What about the obd code? A low voltage from the Power Steering Pressure Sensor is sent to Engine Control Module (ECM)….

P0544 Chevrolet Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 1 Possible causes – Faulty Turbocharger Intake Temperature Sensor– Turbocharger Intake Temperature Sensor harness is open or shorted– Turbocharger Intake Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0545 Chevrolet Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 1 Possible causes – Faulty Exhaust Gas Temperature Sensor– Exhaust Gas Temperature Sensor harness is open or shorted– Exhaust Gas Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0546 Chevrolet Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 1 Possible causes – Faulty Exhaust Gas Temperature Sensor– Exhaust Gas Temperature Sensor harness is open or shorted– Exhaust Gas Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0547 Chevrolet Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 1 Possible causes – Faulty Exhaust Gas Temperature Sensor– Exhaust Gas Temperature Sensor harness is open or shorted– Exhaust Gas Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0548 Chevrolet Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 1 Possible causes – Faulty Exhaust Gas Temperature Sensor– Exhaust Gas Temperature Sensor harness is open or shorted– Exhaust Gas Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0540 Chevrolet Intake Air Heater Feedback Circuit Possible causes – Intake air heater relay Tech description The most common problem that sets code p0540 is the air intake relay Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0540 Chevrolet Description The Engine Control Module (ECM) uses an Intake Air Heater (IAH) to…

P0541 Chevrolet Intake Air Heater Relay 1 Low Possible causes – Faulty Intake Air Heater Relay– Intake Air Heater Relay harness is open or shorted– Intake Air Heater Relay circuit poor electrical connection Tech description Dfuser P0541 Chevrolet AIH Code Eliminator What about the obd code? The Engine Control Module (ECM) sends a bias voltage…

P0542 Chevrolet Intake Air Heater Relay 1 High Possible causes – Faulty Intake Air Heater Relay– Intake Air Heater Relay harness is open or shorted– Intake Air Heater Relay circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) sends a bias voltage on diagnostic circuits one and two. If this…

P0543 Chevrolet Intake Air Heater Incorrect Voltage Possible causes – Faulty Intake Air Heater relay– Faulty Intake Air Heater– Intake Air Heater harness is open or shorted– Intake Air Heater circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) sends a bias voltage on diagnostic circuits one and two. If…