Powertrain Codes

P2011

Technical Definition:

Intake Manifold Runner Control Circuit / Open (Bank 2a)

Trouble Code: P2011
Address: 0x2011
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Intake Manifold Runner Control Circuit/Open Bank 2

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P2006

Technical Definition:

Intake Manifold Runner Control Stuck Closed (Bank 1a)

Trouble Code: P2006
Address: 0x2006
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Intake Manifold Runner Control Stuck Closed Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Intake Manifold Runner Binding Or Sticking
– Vacuum Line Cracked or Broken (Vacuum Leak)
– Intake Manifold Runner Position Sensor 1 or Wiring

Specific Makes:

P2007

Technical Definition:

Intake Manifold Runner Control Stuck Closed (Bank 2a)

Trouble Code: P2007
Address: 0x2007
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Intake Manifold Runner Control Stuck Closed Bank 2

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Intake Manifold Runner Binding Or Sticking
– Vacuum Line Cracked or Broken (Vacuum Leak)
– Intake Manifold Runner Position Sensor 1 or Wiring

Specific Makes:

P2008

Technical Definition:

Intake Manifold Runner Control Circuit / Open (Bank 1a)

Trouble Code: P2008
Address: 0x2008
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Intake Manifold Runner Control Circuit/Open Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Intake Manifold Runner Binding Or Sticking
– Vacuum Line Cracked or Broken (Vacuum Leak)
– Intake Manifold Runner Position Sensor 1 or Wiring

Specific Makes:

P2009

Technical Definition:

Intake Manifold Runner Control Circuit Low (Bank 1a)

Trouble Code: P2009
Address: 0x2009
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Intake Manifold Runner Control Circuit Low Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Intake Manifold Runner Binding Or Sticking
– Vacuum Line Cracked or Broken (Vacuum Leak)
– Intake Manifold Runner Position Sensor 1 or Wiring

Specific Makes:

P2003

Technical Definition:

Diesel Particulate Filter Efficiency Below Threshold (Bank 2)

Trouble Code: P2003
Address: 0x2003
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:
  • A drop in fuel economy occurs as the engine management system attempts to increase the temperature of the exhaust to burn off the excess soot in the DPF
  • The check engine light will be on with the code “P2003.” The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
  • The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
  • If the DPF is not cleared the ECU will revert to the “Limp Home Mode” until the situation is corrected

Diesel Particulate Filter Efficiency Below Threshold Bank 2

Possible Solutions:
  • Too much slow speed operation will cause this code. It takes heat in the 500c to 600c range to burn off the soot in the DPF. Even with the ECUs efforts in engine management, it has difficulty in creating enough heat to clear the DPF at slow engine speeds
  • An air leak forward of the DPF will change the sensor readings resulting in the code
  • Defective ECU strategies or components will prevent proper regeneration
  • Fuel with a large percentage of sulfur will clog the DPF quickly
  • Some aftermarket accessories and performance modifications
  • Dirty air cleaner element
  • Damaged DPF

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Exhaust Pressure Sensor Faulty
– Diesel Particle Filter (DPF) Faulty
– Check/Replace Exhaust Pressure Sensor
– Diesel Particle Filter (DPF)
– Check/Replace Diesel Particle Filter (DPF)

Specific Makes:

P2004

Technical Definition:

Intake Manifold Runner Control Stuck Open (Bank 1a)

Trouble Code: P2004
Address: 0x2004
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Intake Manifold Runner Control Stuck Open Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Intake Manifold Runner Binding Or Sticking
– Vacuum Line Cracked or Broken (Vacuum Leak)
– Intake Manifold Runner Position Sensor 1 or Wiring

Specific Makes:

P2005

Technical Definition:

Intake Manifold Runner Control Stuck Open (Bank 2a)

Trouble Code: P2005
Address: 0x2005
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Intake Manifold Runner Control Stuck Open Bank 2

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Intake Manifold Runner Binding Or Sticking
– Vacuum Line Cracked or Broken (Vacuum Leak)
– Intake Manifold Runner Position Sensor 1 or Wiring

Specific Makes:

P2002

Technical Definition:

Diesel Particulate Filter Efficiency Below Threshold (Bank 1)

Trouble Code: P2002
Address: 0x2002
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Diesel Particulate Filter Efficiency Below Threshold Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P2000

Technical Definition:

Nitrogen Oxides (NOx) Trap Efficiency Below Threshold (Bank 1)

Trouble Code: P2000
Address: 0x2000
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Oxides of Nitrogen Trap Efficiency Below Threshold Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Sensor or solenoid faulty
– Connector terminal contact is damaged or corroded
– Wire harness – Check harness for correct voltage, open, short to ground or short to voltage
– Update control unit software – Check for the latest control unit update
– Powertrain or Engine Control Module faulty
– Catalytic converter damage
– Catalytic converter improper operation

Specific Makes:

P2001

Technical Definition:

Nitrogen Oxides (NOx) Trap Efficiency Below Threshold (Bank 2)

Trouble Code: P2001
Address: 0x2001
System: Powertrain
Subsystem: Fuel & Air metering, Auxiliary emission controls
Technical Description:

Possible Causes:

Possible Symptoms:

Oxides of Nitrogen Trap Efficiency Below Threshold Bank 2

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Sensor or solenoid faulty
– Connector terminal contact is damaged or corroded
– Wire harness – Check harness for correct voltage, open, short to ground or short to voltage
– Update control unit software – Check for the latest control unit update
– Powertrain or Engine Control Module faulty
– Catalytic converter damage
– Catalytic converter improper operation

Specific Makes: