P012B Turbo/Supercharger Inlet Pressure Sensor Range
Description and meaning of DTC p012b
This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles that have a turbocharger or supercharger inlet pressure sensor. Brand of vehicles may include but are not limited to Ford, Dodge, Saturn, Nissan, Subaru, Honda, etc. Although generic, the specific repair steps may vary depending on make/model/engine. This particular code indicates a range or performance malfunction within the Turbo/Supercharger Inlet Pressure Sensor (TCIP) circuit. The turbo/supercharger are responsible for increasing "volumetric efficiency" (amount of air) within the combustion chamber by creating pressure within the intake system. Generally speaking Turbochargers are exhaust driven and Superchargers are belt driven. The inlet of the turbo/supercharger is where they get their filtered air from the air filter. The inlet sensor works with the ECM (Electronic Control Module) or PCM (Powertrain Control Module) in order to monitor and regulate intake pressure. The "(Downstream of throttle valve)" indicates what specific inlet sensor has the malfunction and it's location. The pressure sensor may also incorporate a temperature sensor into it. This trouble code is closely related to P012A, P012C, P012D, and P012E.
p012b diagnostic trouble code symptoms
Symptoms of a P012B engine code may include: Vehicle enters limp mode (Fail safe mode)Engine noisesPoor performanceEngine misfiringStallingPoor fuel mileage
DTC p012b - possible causes
Causes for this code may be: Defective Turbo/supercharger inlet pressure sensorBroken or damaged wiring harnessProblem within general electrical systemECM issuePin/connector problem. (i. e. corrosion, overheating etc. )Clogged or damaged air filter
How to fix OBD-II diagnostic trouble code p012b
Be sure to check for technical service bulletins (TSBs) for your vehicle. Getting access to a known fix can save you time and money during diagnosis. 2013 Ford F150 EcoBoost P012B / P012D Bulletin 14-0082One known bulletin, for example, is Ford TSB 14-0082 which applies to 2013 Ford F-150 pickups with the 3. 5L EcoBoost V6 engine. If you have a P012B and/or P012D code with that vehicle, here is a PDF copy of the full bulletin. The fix is to replace the sensor connector with updated parts, wire part number BU2Z-14S411-ATA and sensor part number CV2Z-9F479-A. Summary below:Some 2013 F-150 vehicles equipped with a 3. 5L GTDI engines may exhibit a MIL illuminated with diagnostic trouble code (DTC) P012B (turbocharger/supercharger inlet pressure sensor circuit range/performance) and/or P012D (turbocharger/ supercharger inlet pressure sensor circuit high) stored in powertrain control module (PCM) memory.