Powertrain Codes

P1451

Technical Definition:

Evaporative Emission System Vent Control Circuit

Trouble Code: P1451
Address: 0x1451
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

EVAP Control System Canister Vent Solenoid Circuit Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1452

Technical Definition:

Unable to Bleed Up Fuel Tank Vacuum

Trouble Code: P1452
Address: 0x1452
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Unable To Bleed Up Vacuum in Tank

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1450

Technical Definition:

Unable to Bleed Up Fuel Tank Vacuum

Trouble Code: P1450
Address: 0x1450
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Unable To Bleed Up Fuel Tank Vacuum

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P144A

Technical Definition:

Evaporative Emission System Purge Vapor Line Restricted/Blocked

Trouble Code: P144A
Address: 0x144A
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P144B

Technical Definition:

EVAP System Secondary Purge Vapor Line Restricted/Blocked

Trouble Code: P144B
Address: 0x144B
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P144C

Technical Definition:

Evaporative Emission System Purge Flow Performance During Boost

Trouble Code: P144C
Address: 0x144C
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1446

Technical Definition:

Evaporative Vacuum Solenoid Circuit

Trouble Code: P1446
Address: 0x1446
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

EVAP Canister Vent Control Valve Close

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1447

Technical Definition:

ELC System Closure Valve Flow

Trouble Code: P1447
Address: 0x1447
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Evaporative Emission Control System Purge Flow Monitor

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1448

Technical Definition:

ELC System 2

Trouble Code: P1448
Address: 0x1448
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

EVAP Canister Vent Control Valve Open

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1449

Technical Definition:

Evaporative Check Solenoid Circuit

Trouble Code: P1449
Address: 0x1449
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Evaporative Check Solenoid Circuit Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1443

Technical Definition:

Evaporative Emission System Control Valve (low/no flow)

Trouble Code: P1443
Address: 0x1443
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Evaporative Emission Control System Control Valve

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1444

Technical Definition:

Evaporative Emission System Purge Flow Sensor Circuit Low

Trouble Code: P1444
Address: 0x1444
System: Powertrain
Subsystem:

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:

P1445

Technical Definition:

Evaporative Emission System Purge Flow Sensor Circuit High

Trouble Code: P1445
Address: 0x1445
System: Powertrain
Subsystem:

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:

P1440

Technical Definition:

Purge Valve Stuck Open

Trouble Code: P1440
Address: 0x1440
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Evaporative Emission Control System Small Leak

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1441

Technical Definition:

ELC System 1

Trouble Code: P1441
Address: 0x1441
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Evaporative Emission Control System Leak

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P1442

Technical Definition:

Evaporative Emission System Control Leak Detected

Trouble Code: P1442
Address: 0x1442
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Evaporative Emission Control System Leak Detected

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P143F

Technical Definition:

A/C Clutch Relay Control B Circuit High

Trouble Code: P143F
Address: 0x143E
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P143A

Technical Definition:

Battery State of Charge Low – A/C Clutch Disabled

Trouble Code: P143A
Address: 0x143A
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P143B

Technical Definition:

Battery State of Charge Low – Forced Limited Power

Trouble Code: P143B
Address: 0x143B
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P143D

Technical Definition:

A/C Clutch Relay Control B Circuit

Trouble Code: P143D
Address: 0x143C
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes: