For Shop Owners

P0238 - Turbocharger/Supercharger Boost Sensor 'A' Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3 What does this mean?

Possible causes

  • Boost pressure sensor harness is open or shorted
  • Boost pressure sensor circuit poor electrical connection
  • Faulty boost pressure sensor
  • Faulty Turbo/Super Charger
  • Engine over temperature
  • Ignition misfire exceeds the calibrated threshold
  • Faulty Knock sensor (KS)
What does this mean?

When is the code detected?

This diagnostic trouble code (DTC) P0238 will set if the boost pressure sensor signal is above the predicted range.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0238 Description

The boost pressure sensor responds to pressure changes in the intake manifold. This pressure is created by the turbocharger and changes with accelerator pedal position (APP) and engine speed. The engine control module (ECM) uses this information to assist in diagnosis of the barometric pressure (BARO) sensor and to provide engine overboost protection. The boost pressure sensor has a 5-volt reference circuit, a low reference circuit, and a signal circuit. The engine control module (ECM) supplies 5 volts to the boost pressure sensor on the 5-volt reference 2 circuit, and provides a ground on a low reference circuit. The boost pressure sensor provides a signal to the ECM on a signal circuit relative to the pressure changes. The ECM monitors the boost pressure sensor signal for voltage outside of the normal range. The ECM calculates a predicted value for the boost pressure sensor. The ECM then compares the predicted value to the actual signal.
OBDII Code P0238 - Turbocharger/Supercharger Boost Sensor 'A' Circuit High -

P0238 Information for specific makes

P0238 CHRYSLER MAP Sensor Too High
P0238 ISUZU Turbocharger Boost Sensor Circuit High Voltage
P0238 MERCEDES-BENZ Turbocharger/Supercharger Boost Sensor 'A' Circuit High
P0238 VOLKSWAGEN Turbo/Super Charger Boost Sensor 'A' Circuit High

Need more help?

Do you need more help with the P0238 code? Ask a question to our users or find an automotive repair shop near you to help fix the OBDII code

P0238 Comments

Help us improve Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0238 code? Have you replaced any parts?
Any information is appreciated. Thanks
Repair Importance Level: 3
1=Low 2=Medium 3=High
Repair Difficulty Level: 3
1=Easy 2=Moderate 3=Hard

Browse All Codes For Specific Model YearBeta
Ford F150 1998 Ford F150
1999 Ford F150
2000 Ford F150
2001 Ford F150
2002 Ford F150
2003 Ford F150
Ford Fusion 2006 Ford Fusion
2007 Ford Fusion
2008 Ford Fusion
2009 Ford Fusion
2010 Ford Fusion
2011 Ford Fusion
2012 Ford Fusion
Honda Accord 2008 Honda Accord
2009 Honda Accord
2010 Honda Accord
Honda Civic 1996 Honda Civic
1997 Honda Civic
1998 Honda Civic
1999 Honda Civic
2000 Honda Civic
Infiniti G35 2003 Infiniti G35
2004 Infiniti G35
2005 Infiniti G35
2006 Infiniti G35
Nissan Altima 2002 Nissan Altima
2003 Nissan Altima
2004 Nissan Altima
2005 Nissan Altima
2006 Nissan Altima
2008 Nissan Altima
2009 Nissan Altima
2010 Nissan Altima
2011 Nissan Altima
2012 Nissan Altima
Nissan Maxima 2005 Nissan Maxima
2006 Nissan Maxima
2007 Nissan Maxima
2008 Nissan Maxima
Nissan Pathfinder 2005 Nissan Pathfinder
2006 Nissan Pathfinder
2007 Nissan Pathfinder
2008 Nissan Pathfinder
2009 Nissan Pathfinder
2010 Nissan Pathfinder
2011 Nissan Pathfinder
2012 Nissan Pathfinder
Nissan Rogue 2008 Nissan Rogue
2009 Nissan Rogue
2010 Nissan Rogue
2011 Nissan Rogue
2012 Nissan Rogue
2013 Nissan Rogue
Nissan Sentra 2002 Nissan Sentra
2003 Nissan Sentra
2004 Nissan Sentra
2005 Nissan Sentra
2006 Nissan Sentra
2007 Nissan Sentra
2008 Nissan Sentra
2009 Nissan Sentra
2010 Nissan Sentra
2011 Nissan Sentra
2012 Nissan Sentra
Toyota Camry 1997 Toyota Camry
1998 Toyota Camry
1999 Toyota Camry
2000 Toyota Camry
2001 Toyota Camry
2006 Toyota Camry
2007 Toyota Camry
2008 Toyota Camry
2009 Toyota Camry
2010 Toyota Camry
2011 Toyota Camry
Toyota Corolla 2005 Toyota Corolla
Toyota Echo 2000 Toyota Echo
2001 Toyota Echo
2002 Toyota Echo
Toyota Highlander 2001 Toyota Highlander
2002 Toyota Highlander
2003 Toyota Highlander
2004 Toyota Highlander
2005 Toyota Highlander
2006 Toyota Highlander
2007 Toyota Highlander
Toyota Prius 2004 Toyota Prius
2005 Toyota Prius
2006 Toyota Prius
2007 Toyota Prius
2008 Toyota Prius
2009 Toyota Prius
Scion xB 2005 Scion xB
2006 Scion xB
2007 Scion xB
Home - For Shop Owners - About - Privacy Policy - Terms and Conditions - - Copyright 2010-2018 - - - -
Posted and Edit by 06-14-2015

Related pages

autozone wiring diagram2006 suzuki forenza thermostatmitsubishi thermostatvsc light on toyotadtc p0013o4 honda accordcrown vic.netcode p0740saab 97xcode po401 egr flow insufficient2002 ford f150 fuel filtercar code p03032002 mazda millenia catalytic converterevaporative emission pressure sensor2000 ford explorer gas tankchevy solenoidford f150 limp home modehonda civic 2007 engineevaporative emission system leak detected small leakf150 p0340p0441 evaptucson barometric pressurep0303 mitsubishi2008 nissan murano gas mileagenissan sentra sunny2001 nissan xterra distributor2009 chevy cobalt transmission problemsp1693 dodge cummins03 isuzu axiomerror code 1009c0561 code1996 nissan maxima transmission2005 acura mdx transmission problems01 saturn sc1windshield repair slidell lanissan altima brake fluidalternator for 1999 ford f150jay valenzuelamarquisbanktoyota camry fuel pump1999 toyota corolla clutch replacementtoyota echo p04202005 dodge ram egr valvegmc envoy problems2001 toyota camry solara reliabilityobd diagnostic interface softwarep0500 engine codepo171 code2009 nissan titan recallsmazda tribute coil pack2002 chevy cavalier fuel pump replacementcadillac bromeobd2 code p04492007 nissan recalls05 pt cruiser problemstacoma catalytic converter2000 civic transmission fluidkia sportage ecu2004 nissan altima 3.52001 toyota solara recallsp1135 toyota tacoma 2001evaporator system leakobd plug locationerror code p04202000 chevy malibu fuel filtermr2 o2 sensorcadillac throttle bodytoyota highlander check vsc system2002 ford sablepo170 mercedes07 honda civic fuse diagrammini cooper camshaftpo850po455 nissan2002 lincoln continental problems