P0477

Technical Definition:

Exhaust Pressure Control Valve Low

Trouble Code: P0477
Address: 0x0477
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Pressure Control Valve Low

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Back Pressure Valve
– Exhaust Back Pressure Valve harness is open or shorted
– Exhaust Back Pressure Valve circuit poor electrical connection

Specific Makes:

P0476

Technical Definition:

Exhaust Pressure Control Valve Range / Performance

Trouble Code: P0476
Address: 0x0476
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Pressure Control Valve Range/Performance

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Back Pressure Valve
– Exhaust Back Pressure Valve harness is open or shorted
– Exhaust Back Pressure Valve circuit poor electrical connection

Specific Makes:

P0475

Technical Definition:

Exhaust Pressure Control Valve

Trouble Code: P0475
Address: 0x0475
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Pressure Control Valve Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Back Pressure Valve
– Exhaust Back Pressure Valve harness is open or shorted
– Exhaust Back Pressure Valve circuit poor electrical connection

Specific Makes:

P0474

Technical Definition:

Exhaust Pressure (Sensor A) Circuit Intermittent / Erratic

Trouble Code: P0474
Address: 0x0474
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Pressure Sensor Intermittent

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Back Pressure Sensor
– Exhaust Back Pressure Sensor harness is open or shorted
– Exhaust Back Pressure Sensor circuit poor electrical connection

Specific Makes:

P0473

Technical Definition:

Exhaust Pressure (Sensor A) Circuit High

Trouble Code: P0473
Address: 0x0473
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Pressure Sensor High

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Back Pressure Sensor
– Exhaust Back Pressure Sensor harness is open or shorted
– Exhaust Back Pressure Sensor circuit poor electrical connection

Specific Makes:

P0472

Technical Definition:

Exhaust Pressure (Sensor A) Circuit Low

Trouble Code: P0472
Address: 0x0472
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Pressure Sensor Low

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Back Pressure Sensor
– Exhaust Back Pressure Sensor harness is open or shorted
– Exhaust Back Pressure Sensor circuit poor electrical connection

Specific Makes:

P0471

Technical Definition:

Exhaust Pressure (Sensor A) Circuit Range / Performance

Trouble Code: P0471
Address: 0x0471
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Pressure Sensor Range/Performance

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Back Pressure Sensor
– Exhaust Back Pressure Sensor harness is open or shorted
– Exhaust Back Pressure Sensor circuit poor electrical connection

Specific Makes:

P0470

Technical Definition:

Exhaust Pressure (Sensor A) Circuit Malfunction

Trouble Code: P0470
Address: 0x0470
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Exhaust Pressure Sensor Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Exhaust Back Pressure Sensor
– Exhaust Back Pressure Sensor harness is open or shorted
– Exhaust Back Pressure Sensor circuit poor electrical connection

Specific Makes:

P0469

Technical Definition:

Evaporative Emission (EVAP) Purge Flow Sensor Circuit Intermittent

Trouble Code: P0469
Address: 0x0469
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Purge Flow Sensor Circuit Intermittent

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0468

Technical Definition:

Evaporative Emission (EVAP) Purge Flow Sensor Circuit High

Trouble Code: P0468
Address: 0x0468
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Purge Flow Sensor Circuit High Input

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0467

Technical Definition:

Evaporative Emission (EVAP) Purge Flow Sensor Circuit Low

Trouble Code: P0467
Address: 0x0467
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Purge Flow Sensor Circuit Low Input

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0466

Technical Definition:

Evaporative Emission (EVAP) Purge Flow Sensor Circuit Range / Performance

Trouble Code: P0466
Address: 0x0466
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Purge Flow Sensor Circuit Range/Performance

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0465

Technical Definition:

Evaporative Emission (EVAP) Purge Flow Sensor Circuit

Trouble Code: P0465
Address: 0x0465
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Purge Flow Sensor Circuit Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0464

Technical Definition:

Fuel Level (Sensor A) Circuit Intermittent

Trouble Code: P0464
Address: 0x0464
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Fuel Level Sensor Circuit Intermittent

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty fuel level sensor
– Fuel level sensor harness is open or shorted
– Fuel level sensor circuit poor electrical connection

Specific Makes:

– Incorrect fuel level reading