Powertrain Codes

P0559

Technical Definition:

Brake Booster Pressure Sensor Circuit Intermittent

Trouble Code: P0559
Address: 0x0559
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Brake Booster Pressure Sensor Circuit Intermittent

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Brake Booster Pressure Sensor
– Brake Booster Pressure Sensor harness is open or shorted
– Brake Booster Pressure Sensor circuit poor electrical connection

Specific Makes:

P0555

Technical Definition:

Brake Booster Pressure Sensor Circuit

Trouble Code: P0555
Address: 0x0555
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Brake Booster Pressure Sensor Circuit

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Brake Booster Pressure Sensor
– Brake Booster Pressure Sensor harness is open or shorted
– Brake Booster Pressure Sensor circuit poor electrical connection

Specific Makes:

P0554

Technical Definition:

Power Steering Pressure Sensor / Switch Circuit Intermittent

Trouble Code: P0554
Address: 0x0554
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Power Steering Pressure Sensor Circuit Intermittent

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Power Steering Pressure Sensor
– Power Steering Pressure Sensor harness is open or shorted
– Power Steering Pressure Sensor circuit poor electrical connection

Specific Makes:

– Power steering inoperative

P0550

Technical Definition:

Power Steering Pressure Sensor / Switch Circuit

Trouble Code: P0550
Address: 0x0550
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Power Steering Pressure Sensor Circuit Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Power Steering Pressure Sensor
– Power Steering Pressure Sensor harness is open or shorted
– Power Steering Pressure Sensor circuit poor electrical connection

Specific Makes:

– Power steering inoperative

P0551

Technical Definition:

Power Steering Pressure Sensor / Switch Circuit Range / Performance

Trouble Code: P0551
Address: 0x0551
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Power Steering Pressure Sensor Circuit Range/Performance

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Power Steering Pressure Sensor
– Power Steering Pressure Sensor harness is open or shorted
– Power Steering Pressure Sensor circuit poor electrical connection

Specific Makes:

– Power steering inoperative

P0552

Technical Definition:

Power Steering Pressure Sensor / Switch Circuit Low

Trouble Code: P0552
Address: 0x0552
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Power Steering Pressure Sensor Circuit Low Input

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Power Steering Pressure Sensor
– Power Steering Pressure Sensor harness is open or shorted
– Power Steering Pressure Sensor circuit poor electrical connection

Specific Makes:

– Power steering inoperative

P0553

Technical Definition:

Power Steering Pressure Sensor / Switch Circuit High

Trouble Code: P0553
Address: 0x0553
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Power Steering Pressure Sensor Circuit High Input

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Power Steering Pressure Sensor
– Power Steering Pressure Sensor harness is open or shorted
– Power Steering Pressure Sensor circuit poor electrical connection

Specific Makes:

– Power steering inoperative

P0546

Technical Definition:

Exhaust Gas Temperature Sensor Circuit High (Bank 1 – Sensor 1)

Trouble Code: P0546
Address: 0x0546
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Gas Temperature Sensor
– Exhaust Gas Temperature Sensor harness is open or shorted
– Exhaust Gas Temperature Sensor circuit poor electrical connection

Specific Makes:

P0547

Technical Definition:

Exhaust Gas Temperature Sensor Circuit (Bank 2 – Sensor 1)

Trouble Code: P0547
Address: 0x0547
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Gas Temperature Sensor
– Exhaust Gas Temperature Sensor harness is open or shorted
– Exhaust Gas Temperature Sensor circuit poor electrical connection

Specific Makes:

P0548

Technical Definition:

Exhaust Gas Temperature Sensor Circuit Low (Bank 2 – Sensor 1)

Trouble Code: P0548
Address: 0x0548
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Gas Temperature Sensor
– Exhaust Gas Temperature Sensor harness is open or shorted
– Exhaust Gas Temperature Sensor circuit poor electrical connection

Specific Makes:

P0549

Technical Definition:

Exhaust Gas Temperature Sensor Circuit High (Bank 2 – Sensor 1)

Trouble Code: P0549
Address: 0x0549
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Gas Temperature Sensor
– Exhaust Gas Temperature Sensor harness is open or shorted
– Exhaust Gas Temperature Sensor circuit poor electrical connection

Specific Makes:

P0545

Technical Definition:

Exhaust Gas Temperature Sensor Circuit Low (Bank 1 – Sensor 1)

Trouble Code: P0545
Address: 0x0545
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Gas Temperature Sensor
– Exhaust Gas Temperature Sensor harness is open or shorted
– Exhaust Gas Temperature Sensor circuit poor electrical connection

Specific Makes:

P0542

Technical Definition:

Intake Air Heater A Circuit High

Trouble Code: P0542
Address: 0x0542
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Intake Air Heater Relay 1 High

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Intake Air Heater Relay
– Intake Air Heater Relay harness is open or shorted
– Intake Air Heater Relay circuit poor electrical connection

Specific Makes:

P0543

Technical Definition:

Intake Air Heater A Circuit Open

Trouble Code: P0543
Address: 0x0543
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Intake Air Heater Incorrect Voltage

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Intake Air Heater relay
– Faulty Intake Air Heater
– Intake Air Heater harness is open or shorted
– Intake Air Heater circuit poor electrical connection

Specific Makes: