Bosch MEDC17.9 DTC Codes

631 diagnostic trouble codes mapped for the Bosch MEDC17.9, measured on real files.

Overview

Diagnostic data for the MEDC17.9

ECU
Bosch MEDC17.9
Manufacturer
Bosch
Mapped codes
631
With description
476

Map Decoder stores 631 distinct diagnostic trouble codes for the Bosch MEDC17.9. Each one carries the address and the byte values measured on a real file, which is what lets a removal write the value the ECU actually expects instead of a guessed constant. See DTC removal for the workflow.

Code list

MEDC17.9 diagnostic trouble codes

CodeDescription
P0016Crankshaft/camshaft position correlation bank 1 sensor A
P0027Exhaust valve control solenoid circuit, bank 1 range/performance
P0030HO2S heater control circuit bank 1 sensor 1
P0031HO2S heater circuit low bank 1 sensor 1
P0032HO2S heater circuit high bank 1 sensor 1
P0034Turbocharger (TC
P0035Turbocharger (TC
P0039Turbo/super charger bypass valve, control circuit range/performance
P003A'Turbocharger/Supercharger Boost Control 'A' Position Exceeded Learning Limit'
P003B'Turbocharger/Supercharger Boost Control 'B' Position Exceeded Learning Limit'
P0045Turbo/super charger boost control solenoid -circuit open
P0046Turbo/super charger boost control solenoid circuit range/performance
P0047Turbo/super charger boost control solenoid -circuit low
P0048Turbo/super charger boost control solenoid -circuit high
P004B'Turbocharger/Supercharger Boost Control 'B' Circuit Range/Performance'
P004C'Turbocharger/Supercharger Boost Control 'B' Circuit Low'
P004D'Turbocharger/Supercharger Boost Control 'B' Circuit High'
P0069MAP/barometric pressure sensor correlation
P006AMAP - Mass or Volume Air Flow Correlation
P0070Outside air temperature sensor -circuit malfunction
P0071Outside air temperature sensor -range/performance problem
P0072Outside air temperature sensor -low input
P0073Outside air temperature sensor -high input
P0078Exhaust valve control solenoid, bank 1 -circuit malfunction
P0079Exhaust valve control solenoid, bank 1 -circuit low
P007BCharge Air Cooler Temperature Sensor Circuit Range/Performance
P007CCharge Air Cooler Temperature Sensor Circuit Low
P007DCharge Air Cooler Temperature Sensor Circuit High
P0080Exhaust valve control solenoid, bank 1 -circuit high
P0087Fuel rail/system pressure too low
P0088Fuel rail/system pressure too high
P0089Fuel pressure regulator -performance problem
P0090Fuel metering solenoid -open circuit
P0091Fuel metering solenoid - -short to earth
P0092Fuel metering solenoid -short to positive
P0096Intake air temperature (IAT) sensor 2 -circuit range/performance
P0097Intake air temperature (IAT) sensor 2 -circuit low input
P0098Intake air temperature (IAT) sensor 2 -circuit high input
P009CFuel Pressure Relief Control Circuit Low
P00BC'Mass or Volume Air Flow 'A' Circuit Range/Performance - Air Flow Too Low'
P00BD'Mass or Volume Air Flow 'A' Circuit Range/Performance - Air Flow Too High'
P00C6—
P00CE—
P00CF—
P00D7—
P0100MAF sensor circuit malfunction
P0101Mass air flow (MAF) sensor/volume air flow (VAF) sensor range/performance problem
P0102MAF sensor circuit low input
P0103Mass air flow (MAF) sensor/volume air flow (VAF) sensor high input
P0106Manifold absolute pressure (MAF
P0107Manifold absolute pressure (MAP) sensor/barometric pressure (BARO) sensor -low input
P0108Manifold absolute pressure (MAP) sensor/barometric pressure (BARO) sensor -high input
P0111'Intake air temperature (IAT) sensor''' range/performance problem'
P0112Intake air temperature (IAT) sensor -low input
P0113Intake air temperature (IAT) sensor -high input
P0116Engine coolant temperature (ECT) sensor range/performance problem
P0117Engine coolant temperature (ECT) sensor -low input
P0118Engine coolant temperature (ECT) sensor -high input
P011BEngine Coolant Temperature/Intake Air Temperature Correlation
P0128Coolant thermostat -coolant temperature below thermostat regulating temperature
P0130HO2S circuit malfunction bank 1 sensor 1
P0131HO2S circuit low voltage bank 1 sensor 1
P0132HO2S circuit high voltage bank 1 sensor 1
P0134HO2S no activity detected bank 1 sensor 1
P0135HO2S heater circuit malfunction bank 1 sensor 1
P014CO2 Sensor Slow Response - Rich to Lean
P014DO2 Sensor Slow Response - Lean to Rich
P015F—
P016D—
P0171System too lean, bank 1
P0172System too rich, bank 1
P017A—
P017B—
P017C—
P017D—
P0180Fuel temperature sensor A -circuit malfunction
P0181Fuel temperature sensor A -range/performance problem
P0182Fuel temperature sensor A -low input
P0183Fuel temperature sensor A -high input
P0191Fuel rail pressure sensor range/performance
P0192Fuel rail pressure sensor circuit low input
P0193Fuel rail pressure sensor circuit high input
P0194Fuel rail pressure (FRP) sensor -circuit intermittent
P0195Engine oil temperature (EOT) sensor -circuit malfunction
P0196Engine oil temperature (EOT) sensor
P01E4—
P01E5—
P01E6—
P0201Injector 1 -circuit malfunction
P0202Injector 2 -circuit malfunction
P0203Injector 3 -circuit malfunction
P0204Injector 4 -circuit malfunction
P0216Fuel injection timing control -circuit malfunction
P0219Engine over speed condition
P0230Fuel pump relay -circuit malfunction
P0234Engine boost condition -limit exceeded
P023ACharge Air Cooler Coolant Pump Control Circuit/Open
P023BCharge Air Cooler Coolant Pump Control Circuit Low
P023CCharge Air Cooler Coolant Pump Control Circuit High
P0241Manifold absolute pressure (MAP
P0242Manifold absolute pressure (MAP
P0251Injection pump A, rotor/cam -circuit malfunction
P0252Injection pump A, rotor/cam -range/performance problem
P0253Injection pump A, rotor/cam -circuit low
P0254Injection pump A, rotor/cam -circuit high
P0255Injection pump A, rotor/cam -circuit intermittent
P025AFuel Pump Module Control Circuit/Open
P025BFuel Pump Module Control Circuit Range/Performance
P025CFuel Pump Module Control Circuit Low
P025DFuel Pump Module Control Circuit High
P0263Cylinder 1 -contribution/balance fault
P0266Cylinder 2 -contribution/balance fault
P0269Cylinder 3 -contribution/balance fault
P026A—
P026B—
P026C—
P026D—
P026E—
P0272Cylinder 4 -contribution/balance fault
P0299Turbo/super charger underboost
P02CCCylinder 1 Fuel Injector Offset Learning At Min Limit
P02CDCylinder 1 Fuel Injector Offset Learning At Max Limit
P02CECylinder 2 Fuel Injector Offset Learning At Min Limit
P02CFCylinder 2 Fuel Injector Offset Learning At Max Limit
P02D0Cylinder 3 Fuel Injector Offset Learning At Min Limit
P02D1Cylinder 3 Fuel Injector Offset Learning At Max Limit
P02D2Cylinder 4 Fuel Injector Offset Learning At Min Limit
P02D3Cylinder 4 Fuel Injector Offset Learning At Max Limit
P02EECylinder 1 Injector Circuit Range/Performance
P02EFCylinder 2 Injector Circuit Range/Performance
P02F0Cylinder 3 Injector Circuit Range/Performance
P02F1Cylinder 4 Injector Circuit Range/Performance
P0300Random/multiple cylinder(s) -misfire detected
P0301Cylinder 1 -misfire detected
P0302Cylinder 2 -misfire detected
P0303Cylinder 3 -misfire detected
P0304Cylinder 4 -misfire detected
P0313Misfire detected -low fuel level
P0315Crankshaft position system -variation not learned
P0317Rough road hardware not present
P0335Crankshaft position sensor A circuit malfunction
P0339Crankshaft position (CKP) sensor -circuit intermittent
P0341Camshaft position sensor A bank 1 range/performance
P0342Camshaft position (CMP) sensor A, bank 1 -low input
P034A—
P034B—
P037A—
P037B—
P0381Glow plug warning lamp -circuit malfunction
P0401EGR system insufficient flow detected
P0402EGR system excessive flow detected
P0403Exhaust gas recirculation (EGR) -circuit malfunction
P0404Exhaust gas recirculation (EGR
P0405Exhaust gas recirculation (EGR) valve position sensor A low input
P0406EGR sensor A circuit high
P0407Exhaust gas recirculation (EGR) valve position sensor B low input
P0408Exhaust gas recirculation (EGR) valve position sensor B high input
P040B'Exhaust Gas Recirculation Temperature Sensor 'A' CircuitRange/Performance'
P040C'Exhaust Gas Recirculation Temperature Sensor 'A' Circuit Low'
P040D'Exhaust Gas Recirculation Temperature Sensor 'A' Circuit High'
P041B'Exhaust Gas Recirculation Temperature Sensor 'B' Circuit Range/Performance'
P041C'Exhaust Gas Recirculation Temperature Sensor 'B' Circuit Low'
P041D'Exhaust Gas Recirculation Temperature Sensor 'B' Circuit High'
P0420Catalytic converter system, bank 1 -efficiency below threshold
P042E'Exhaust Gas Recirculation 'A' Control Stuck Open'
P042F'Exhaust Gas Recirculation 'A' Control Stuck Closed'
P045A'Exhaust Gas Recirculation 'B' Control Circuit'
P045B'Exhaust Gas Recirculation 'B' Control Circuit Range/Performance'
P045C'Exhaust Gas Recirculation 'B' Control Circuit Low'
P045D'Exhaust Gas Recirculation 'B' Control Circuit High'
P045E'Exhaust Gas Recirculation 'B' Control Stuck Open'
P045F'Exhaust Gas Recirculation 'B' Control Stuck Closed'
P0460Fuel tank level sensor -circuit malfunction
P0461Fuel tank level sensor range/performance problem
P0472Exhaust gas pressure sensor -low input
P0473Exhaust gas pressure sensor -high input
P0480Engine coolant blower motor 1 -circuit malfunction
P0481Engine coolant blower motor 2 -circuit malfunction
P0483Engine coolant blower motor, rationality check malfunction
P0489Exhaust gas recirculation (EGA) system -circuit low
P0490Exhaust gas recirculation (EGA) system -circuit high
P0494Engine coolant blower motor speed -low
P0495Engine coolant blower motor speed -high
P049B'Exhaust Gas Recirculation 'B' Flow Insufficient Detected'
P049C'Exhaust Gas Recirculation 'B' Flow Excessive Detected'
P049D'Exhaust Gas Recirculation 'A' Control Position Exceeded Learning Limit'
P049E'Exhaust Gas Recirculation 'B' Control Position Exceeded Learning Limit'
P04FC—
P0500Vehicle speed sensor A malfunction
P0501Vehicle speed sensor (VSS) -range/performance problem
P0504Brake switch -A/B correlation
P0506Idle speed control (ISC) system -rpm lower than expected
P0507Idle speed control (ISC) system -rpm higher than expected
P050ACold Start Idle Air Control System Performance
P050ECold Start Engine Exhaust Temperature Too Low
P050FBrake Assist Vacuum Too Low
P0512Starter request circuit -malfunction
P0513Incorrect immobilizer key
P051BCrankcase Pressure Sensor Circuit Range/Performance
P051CCrankcase Pressure Sensor Circuit Low
P051DCrankcase Pressure Sensor Circuit High
P0520Engine oil pressure sensor/switch -circuit malfunction
P0521Engine oil pressure sensor/switch -range/performance problem
P0522Engine oil pressure sensor/switch -low voltage
P0523Engine oil pressure sensor/switch -high voltage
P0526Engine coolant blower motor speed sensor circuit malfunction
P0527Engine coolant blower motor speed sensor circuit range/performance
P052F—
P053F—
P0544Exhaust gas recirculation temperature (EGRT) sensor, bank 1 -circuit malfunction
P0545Exhaust gas recirculation temperature (EGRT) sensor, bank 1 -low input
P0546Exhaust gas recirculation temperature (EGRT) sensor, bank 1 -high input
P054E—
P054F—
P0555Brake servo pressure sensor -circuit malfunction
P055F—
P0562System voltage -low
P0563System voltage -high
P056E—
P056F—
P0571Cruise/brake switch A -circuit malfunction
P0575Cruise control system -input circuit malfunction
P0597Thermostat heater control system -circuit open
P0598Thermostat heater control system -circuit low
P0599Thermostat heater control system -circuit high
P059F—
P05A2—
P05A6—
P05AE—
P05B1—
P05B5—
P05C0—
P05C1—
P05ED—
P05F1—
P05F2—
P05F8—
P05FD—
P05FF—
P0602Engine control module (ECM) -programming error
P0605Internal control module ROM error
P0606ECM/PCM processor fault
P060AInternal Control Module Monitoring Processor Performance
P060BInternal Control Module A/D Processing Performance
P060CInternal Control Module Main Processor Performance
P060DInternal Control Module Accelerator Pedal Position Performance
P0615Starter motor relay -circuit malfunction
P0616Starter motor relay -circuit low
P0617Starter motor relay -circuit high
P061AInternal Control Module Torque Performance
P061BInternal Control Module Torque Calculation Performance
P061CInternal Control Module Engine RPM Performance
P0627Fuel pump control -circuit open
P0628Fuel pump control -circuit low
P0629Fuel pump control -circuit high
P062A'Fuel Pump 'A' Control Circuit Range/Performance'
P062BInternal Control Module Fuel Injector Control Performance
P062DFuel Injector Driver Circuit Performance
P062EFuel Injector Driver Circuit Performance
P062FInternal Control Module EEPROM Error
P0633Immobilizer key not programmed -ECM/PCM
P0634PCM/ECM/TCM -internal temperature too high
P0642Engine control module (ECM), knock control -defective
P0643Sensor reference voltage A -circuit high
P064AFuel Pump Control Module
P064CGlow Plug Control Module
P064DInternal Control Module O2 Sensor Processor Performance
P064FUnauthorized Software/Calibration Detected
P0650Malfunction indicator lamp (MIL) -circuit malfunction
P0652Sensor reference voltage B -circuit low
P0653Sensor reference voltage B -circuit high
P0658Actuator supply voltage -circuit low
P0659Actuator supply voltage -circuit high
P0667PCM/ECM/TCM internal temperature sensor range/performance
P0668PCM/ECM/TCM internal temperature sensor -circuit low
P0669PCM/ECM/TCM internal temperature sensor -circuit high
P066ACylinder 1 Glow Plug Control Circuit Low
P066BCylinder 1 Glow Plug Control Circuit High
P066CCylinder 2 Glow Plug Control Circuit Low
P066DCylinder 2 Glow Plug Control Circuit High
P066ECylinder 3 Glow Plug Control Circuit Low
P066FCylinder 3 Glow Plug Control Circuit High
P0671Glow plug, cylinder 1 -circuit malfunction
P0672Glow plug, cylinder 2 -circuit malfunction
P0673Glow plug, cylinder 3 -circuit malfunction
P0674Glow plug, cylinder 4 -circuit malfunction
P067ACylinder 4 Glow Plug Control Circuit Low
P067BCylinder 4 Glow Plug Control Circuit High
P0686ECM/PCM power relay control circuit low
P0687Engine control relay -short to earth
P068AECM/PCM Power Relay De-Energized Performance - Too Early
P0691Engine coolant blower motor 1 -short to earth
P0692Engine coolant blower motor 1 -short to positive
P0693Engine coolant blower motor 2 -short to earth
P0694Engine coolant blower motor 2 -short to positive
P0698Sensor reference voltage C -circuit low
P0699Sensor reference voltage C -circuit high
P06A6'Sensor Reference Voltage 'A' Circuit Range/Performance'
P06A7'Sensor Reference Voltage 'B' Circuit Range/Performance'
P06A8'Sensor Reference Voltage 'C' Circuit Range/Performance'
P06B9Cylinder 1 Glow Plug Circuit Range/Performance
P06BACylinder 2 Glow Plug Circuit Range/Performance
P06BBCylinder 3 Glow Plug Circuit Range/Performance
P06BCCylinder 4 Glow Plug Circuit Range/Performance
P06DA—
P06DB—
P06DC—
P06DF—
P06EA—
P06EB—
P06F5—
P06F9—
P06FB—
P0700Transmission control system -malfunction
P0703Torque converter/brake switch B -circuit malfunction
P0704Clutch switch input circuit malfunction
P0805Clutch position sensor -circuit malfunction
P0806Clutch position sensor -range/performance problem
P0807Clutch position sensor -low input
P0808Clutch position sensor -high input
P0820Gear lever X -Y position sensor -circuit malfunction
P0830Clutch pedal position (CPP) switch A -circuit malfunction
P0831Clutch pedal switch A low input
P0832Clutch pedal switch A high input
P0833Clutch pedal position (CPP) switch B -circuit malfunction
P0835Clutch pedal position (CPP) switch B -high input
P0850Park/neutral position (PNP) switch -input circuit malfunction
P086F—
P087B—
P087C—
P087D—
P0914Gear shift position circuit -malfunction
P0915Gear shift position circuit -range/performance
P0916Gear shift position circuit -low
P0917Gear shift position circuit -high
P0A0FEngine Failed to Start
P0A14'Engine Mount 'A' Control Circuit/OpenSAE'
P0A15'Engine Mount 'A' Control Circuit Low'
P0A16'Engine Mount 'A' Control Circuit High'
P0D68—
P0D69—
P0D6A—
P0D6B—
P115B—
P115D—
P115F—
P120F—
P131A—
P1405—
P1592—
P162F—
P169F—
P16A3—
P16A4—
P16A5—
P16A6—
P16A7—
P16A8—
P1719—
P1933—
P1936—
P2002Diesel Particulate Filter Efficiency Below Threshold Bank 1
P2004Intake Manifold Runner Control Stuck Open Bank 1
P2006Intake Manifold Runner Control Stuck Closed Bank 1
P2008Intake Manifold Runner Control Circuit/Open Bank 1
P2009Intake Manifold Runner Control Circuit Low Bank 1
P200AIntake Manifold Runner Performance Bank 1
P2010Intake Manifold Runner Control Circuit High Bank 1
P202AReductant Tank Heater Control Circuit/Open
P202BReductant Tank Heater Control Circuit Low
P202CReductant Tank Heater Control Circuit High
P202EReductant Injection Valve Circuit Range/Performance Bank 1 Unit 1
P2031Exhaust gas temperature sensor circuit bank 1 sensor 2
P2032Exhaust gas temperature sensor circuit low bank 1 sensor 2
P2033Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 2
P203BReductant Level Sensor Circuit Range/Performance
P203CReductant Level Sensor Circuit Low
P203DReductant Level Sensor Circuit High
P203FReductant Level Too Low
P2047Reductant Injection Valve Circuit/Open Bank 1 Unit 1
P2048Reductant Injection Valve Circuit Low Bank 1 Unit 1
P2049Reductant Injection Valve Circuit High Bank 1 Unit 1
P204BReductant Pressure Sensor Circuit Range/Performance
P205BReductant Tank Temperature Sensor Circuit Range/Performance
P205CReductant Tank Temperature Sensor Circuit Low
P205DReductant Tank Temperature Sensor Circuit High
P205EReductant Tank Temperature Sensor Circuit Intermittent/Erratic
P2080Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1
P2084Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 2
P208AReductant Pump Control Circuit/Open
P208BReductant Pump Control Range/Performance
P208CReductant Pump Control Circuit Low
P208DReductant Pump Control Circuit High
P208EReductant Injection Valve Stuck Closed Bank 1 Unit 1
P209FReductant Tank Heater Control Circuit Performance
P20ADReductant Metering Unit Temperature Sensor Circuit Range/Performance
P20B9Reductant Heater 'A' Control Circuit/Open
P20BAReductant Heater 'A' Control Circuit Performance
P20BBReductant Heater 'A' Control Circuit Low
P20BCReductant Heater 'A' Control Circuit High
P20E8Reductant Pressure Too Low
P20E9Reductant Pressure Too High
P20EESCR NOx Catalyst Efficiency Below Threshold Bank 1
P20F4Reductant Consumption Too Low
P20F5Reductant Consumption Too High
P20F6Reductant Injection Valve Stuck Open Bank 1 Unit 1
P20F8—
P20FA—
P20FB—
P20FC—
P20FD—
P20FE—
P2100Throttle Actuator 'A' Control Motor Circuit/Open
P2101Throttle Actuator 'A' Control Motor Circuit Range/Performance
P2102Throttle Actuator 'A' Control Motor Circuit Low
P2103Throttle Actuator 'A' Control Motor Circuit High
P2111Throttle Actuator Control System - Stuck Open
P2112Throttle Actuator Control System - Stuck Closed
P2122Throttle/Pedal Position Sensor/Switch 'D' Circuit Low
P2123Throttle/Pedal Position Sensor/Switch 'D' Circuit High
P2127Throttle/Pedal Position Sensor/Switch 'E' Circuit Low
P2128Throttle/Pedal Position Sensor/Switch 'E' Circuit High
P2138Throttle/Pedal Pos Sensor/Switch D / E Voltage Correlation
P213EFuel Injection System Fault - Forced Engine Shutdown
P214E—
P215BVehicle Speed - Output Shaft Speed Correlation
P2183Engine Coolant Temperature Sensor 2 Circuit Range/Performance
P2184Engine Coolant Temperature Sensor 2 Circuit Low
P2185Engine Coolant Temperature Sensor 2 Circuit High
P2195O2 Sensor Signal Stuck Lean Bank 1 Sensor 1
P2196O2 Sensor Signal Stuck Rich Bank 1 Sensor 1
P21C5—
P21C7—
P21C8—
P21C9—
P21CA—
P2200NOx Sensor Circuit Bank 1
P2201NOx Sensor Circuit Range/Performance Bank 1
P2202NOx Sensor Circuit Low Bank 1
P2203NOx Sensor Circuit High Bank 1
P2205NOx Sensor Heater Control Circuit/Open Bank 1
P2207NOx Sensor Heater Control Circuit High Bank 1
P2209NOx Sensor Heater Sense Circuit Range/Performance Bank 1
P220ANOx Sensor Supply Voltage Circuit Bank 1 Sensor 1
P220BNOx Sensor Supply Voltage Circuit Bank 1 Sensor 2
P2226Barometric Pressure Sensor 'A' Circuit
P2227Barometric Pressure Sensor 'A' Circuit Range/Performance
P2228Barometric Pressure Sensor 'A' Circuit Low
P2229Barometric Pressure Sensor 'A' Circuit High
P2237O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1
P2243O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1
P2251O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1
P225CNOx Sensor Performance – Signal Biased/Stuck High Bank 1 Sensor 1
P225DNOx Sensor Performance – Signal Biased/Stuck Low Bank 1 Sensor 1
P225ENOx Sensor Performance – Signal Biased/Stuck High Bank 1 Sensor 2
P225FNOx Sensor Performance – Signal Biased/Stuck Low Bank 1 Sensor 2
P2265Water in Fuel Sensor Circuit Range/Performance
P2269Water in Fuel Condition
P226BTurbocharger/Supercharger Boost Pressure Too High - Mechanical
P226CTurbocharger Boost Control “A” Slow Response
P226DParticulate Filter Deteriorated/Missing Substrate Bank 1
P2279Intake Air System Leak
P228CFuel Pressure Regulator 1 Exceeded Control Limits - Pressure Too Low
P228EFuel Pressure Regulator 1 Exceeded Learning Limits - Too Low
P228FFuel Pressure Regulator 1 Exceeded Learning Limits - Too High
P2297O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1
P229ENOx Sensor Circuit Bank 1 Sensor 2
P229FNOx Sensor Circuit Range/Performance Bank 1 Sensor 2
P22A0NOx Sensor Circuit Low Bank 1 Sensor 2
P22A1NOx Sensor Circuit High Bank 1 Sensor 2
P22A3NOx Sensor Heater Control Circuit/Open Bank 1 Sensor 2
P22A5NOx Sensor Heater Control Circuit High Bank 1 Sensor 2
P22A7NOx Sensor Heater Sense Circuit Range/Performance Bank 1 Sensor 2
P22F9NOx Sensor Performance – Slow Response Low to High Bank 1 Sensor 1
P22FANOx Sensor Performance – Slow Response High to Low Bank 1 Sensor 1
P22FBNOx Sensor Performance – Sensing Element Bank 1 Sensor 1
P22FENOx Sensor Performance – Sensing Element Bank 1 Sensor 2
P2380EGR Sensor “D” Circuit
P2381EGR Sensor “D” Circuit High
P2382EGR Sensor “D” Circuit Low
P2383EGR Sensor “D” Circuit Range/Performance
P23E8EGR “C” Flow Excessive Detected
P240FEGR Slow Response
P241DSCR Inducement – Forced Engine Shutdown
P241FEGR Cooler “B” Efficiency Below Threshold
P242AExhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3
P242BExhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3
P242CExhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3
P242DExhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3
P242FDiesel particulate filter restriction (ash accumulation)
P244ADiesel Particulate Filter Differential Pressure Too Low Bank 1
P2452Diesel Particulate Filter Pressure Sensor 'A' Circuit
P2453DPF pressure sensor A range/performance
P2454DPF pressure sensor A circuit low
P2455DPF pressure sensor A circuit high
P2457Exhaust Gas Recirculation Cooling System Performance
P2458Diesel Particulate Filter Regeneration Duration
P2459Diesel Particulate Filter Regeneration Frequency
P245AExhaust Gas Recirculation Cooler Bypass Control Circuit/Open
P245BExhaust Gas Recirculation Cooler Bypass Control Circuit Range/Performance
P245CExhaust Gas Recirculation Cooler Bypass Control Circuit Low
P245DExhaust Gas Recirculation Cooler Bypass Control Circuit High
P2463Diesel Particulate Filter Restriction - Soot Accumulation
P246BVehicle Conditions Incorrect for Diesel Particulate Filter Regeneration
P246DDiesel Particulate Filter Pressure Sensor 'A'/'B' Correlation
P246EExhaust Gas Temperature Sensor Circuit Bank 1 Sensor 4
P246FExhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 4
P2470Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 4
P2471Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 4
P2478Exhaust Gas Temperature Out of Range Bank 1 Sensor 1
P2479Exhaust Gas Temperature Out of Range Bank 1 Sensor 2
P247AExhaust Gas Temperature Out of Range Bank 1 Sensor 3
P247BExhaust Gas Temperature Out of Range Bank 1 Sensor 4
P2481Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 5
P2482Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 5
P2483Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 5
P2493EGR Cooler Bypass Position Sensor Range/Performance Bank 1
P2494EGR Cooler Bypass Position Sensor Circuit Low Bank 1
P2495EGR Cooler Bypass Position Sensor Circuit High Bank 1
P249CExcessive Time To Enter Closed Loop Reductant Injection Control
P249DClosed Loop Reductant Injection Control At Limit – Flow Too Low
P249EClosed Loop Reductant Injection Control At Limit – Flow Too High
P249FExcessive Time To Enter Closed Loop Particulate Filter Regeneration Control
P24A0Closed Loop Particulate Filter Regeneration Control At Limit – Temperature Too Low
P24A1Closed Loop Particulate Filter Regeneration Control At Limit – Temperature Too High
P24A2Particulate Filter Regeneration Incomplete Bank 1
P24A4Particulate Filter Restriction – Soot Accumulation Too High Bank 1
P24A5EGR Cooler Bypass Control Stuck/Open Bank 1
P24AEParticulate Matter Sensor Circuit
P24AFParticulate Matter Sensor Circuit Range/Performance
P24B0Particulate Matter Sensor Circuit Low
P24B1Particulate Matter Sensor Circuit High
P24B3Particulate Matter Sensor Heater Control Circuit/Open
P24B5Particulate Matter Sensor Heater Control Circuit Low
P24B6Particulate Matter Sensor Heater Control Circuit High
P24C2Exhaust Gas Temperature Measurement System – Multiple Sensor Correlation Bank 1
P24C4EGR Cooler Bypass Position Sensor Exceeded Learning Limit Bank 1
P24C6Particulate Matter Sensor Temperature Circuit
P24C7Particulate Matter Sensor Temperature Circuit Range/performance
P24D0Particulate Matter Sensor Supply Voltage Circuit Low
P24D1Particulate Matter Sensor Regeneration Incomplete
P24DAParticulate Matter Sensor Exhaust Sample Error Bank 1
P253FEngine Oil Deteriorated
P2564Turbocharger Boost Control Position Sensor 'A' Circuit Low
P2565Turbocharger Boost Control Position Sensor 'A' Circuit High
P2586Turbocharger Boost Control Position Sensor 'B' Circuit
P2587Turbocharger Boost Control Position Sensor 'B' Circuit Range/Performance
P2588Turbocharger Boost Control Position Sensor 'B' Circuit Low
P2589Turbocharger Boost Control Position Sensor 'B' Circuit High
P2598—
P2599—
P259A—
P259B—
P25A2—
P25A3—
P25A9—
P25AA—
P25AB—
P25AC—
P2610ECM/PCM Internal Engine Off Timer Performance
P2617Crankshaft Position Signal Output Circuit/Open
P261ACoolant Pump 'B' Control Circuit/Open
P261BCoolant Pump 'B' Control Circuit Range/Performance
P261CCoolant Pump 'B' Control Circuit Low
P261DCoolant Pump 'B' Control Circuit High
P2621Throttle Position Output Circuit Low
P2622Throttle Position Output Circuit High
P2626O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1
P2635Fuel Pump 'A' Low Flow/Performance
P263A—
P263B—
P263E—
P263F—
P268CCylinder 1 Injector Data Incompatible
P268DCylinder 2 Injector Data Incompatible
P268ECylinder 3 Injector Data Incompatible
P268FCylinder 4 Injector Data Incompatible
P26CA—
P26CB—
P26CC—
P26CD—
P26D3—
P26D4—
P26D5—
P26DB—
P26DC—
P26DD—
P26DE—
P26E4—
P26E5—
P26E6—
P2BA7NOx Exceedence - Empty Reagent Tank
P2BA9NOx Exceedence - Insufficient Reagent Quality
P2BAENOx Exceedence - NOx control monitoring system
P2BAF—
P4031—
P4034—
P4037—
P403A—
P4051—
P90A2—
P9206—
U0028—
U0080—
U0101Lost communication with TCM
U0106—
U0151—
U0164—
U0167—
U019C—
U0284—
U0285—
U029D—
U029E—
U02A3—
U02A5—
U0402—
U0404—
U0405—
U0412—
U0415—
U041E—
U0424—
U0426—
U04A4—
U05A6—
U05AA—
U2005—
U2012—
U2108—
U2300—
FAQ

Bosch MEDC17.9 DTC codes — frequently asked questions

How many DTC codes does Map Decoder have for the MEDC17.9?

631 distinct diagnostic trouble codes, 476 of them with a description.

Where do these codes come from?

Each entry was measured on a real file: the address, the enabled value and the disabled value were read from an original and a modified binary. Nothing here is a generic OBD-II lookup table.

Can these codes be switched off on the MEDC17.9?

Yes — Map Decoder writes the value that was observed on this ECU rather than a guessed constant, and corrects the checksum afterwards.

Remove DTC codes on Bosch MEDC17.9

Map Decoder analyses Bosch MEDC17.9 files, detects the maps and generates a verified patch with the checksum corrected.