OBD2 Diagnostic Trouble Codes (DTC)
Decode your vehicle’s diagnostic trouble codes (DTCs) with our comprehensive OBD2 DTC database! We provide detailed explanations for U-Codes, B-Codes, C-Codes, and P-Codes, empowering you to understand and address potential issues. Quickly identify the meaning of any code and take the necessary steps to resolve problems. This resource is designed to help both DIY mechanics and professional technicians.
Troubleshooting list for Daewoo forklift trucks
On this page, you can find a definition of fault codes for various Daewoo forklift models, including: These codes apply to Daewoo forklifts with serial number prefixes: FQ, FR, FY, G2, G3, G4, G5, G6, G9, GA, GB, GH, GQ. The trucks with the “Plus” designation near the model number indicate this on the side. Diagnostics: The Check Engine light, also known as the Malfunction …
Diagnostic Trouble Codes for Daewoo
P0102 Low Mass Air Flow Sensor SignalP0103 High mass air flow sensor signalP0112 Inlet air temperature sensor lowP0113 High Intake Air Temperature SensorP0116 Invalid signal from coolant temperature sensorP0117 Coolant Temperature Sensor LowP0118 Coolant Temperature Sensor High SignalP0122 Throttle Position Sensor LowP0123 Throttle Position Sensor HighP0130 Invalid signal of DC 1P0132 High level of signal DK 1P0133 Slow response of the DC 1P0134 No signal …
Cummins ISX – Fault codes (pre 2002)
The Cummins ISX Fault Codes (Pre-2002) Manual is a comprehensive diagnostic and troubleshooting resource specifically designed to address and resolve issues related to fault codes on Cummins ISX engines manufactured prior to 2002. This manual is an invaluable reference for technicians, operators and enthusiasts working with these Cummins engines. The manual covers a wide range of fault codes specific to pre-2002 ISX engines. Each fault …
CUMMINS ISX Engine Trouble Codes (DTCs)
Cummins ISX Engine Fault Codes 111-500 111 Electronic Control Module Critical Internal Failure – Bad Intelligent Device or Component 115 Engine Magnetic Speed / Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect 122 Intake Manifold 1 Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source 123 Intake Manifold 1 Pressure Sensor Circuit – Voltage Below Normal, or Shorted to …
DTC fault codes for CUMMINS ISM
CUMMINS ISM Engine Fault Codes DTC 111 Engine Control Module Critical Internal Failure – Bad Intelligent Device or Component 122 Intake Manifold Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source 123 Intake Manifold Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source 131 Accelerator Pedal Position Sensor Circuit – Shorted High 132 Accelerator Pedal or Lever Position Sensor Circuit …
DTC fault codes for CUMMINS ISL & ISC
CUMMINS ISL & ISC Engine Codes 0-100 0001 Exhaust Gas Pressure Sensor Number 1 Circuit – Voltage Above Normal, or Shorted to High Source 0002 Exhaust Gas Pressure Sensor Number 1 Circuit – Voltage Below Normal, or Shorted to Low Source 0003 Exhaust Gas Pressure Sensor Number 1 Circuit – Data Erratic, Intermittent, or Incorrect 0004 Exhaust Gas Temperature Sensor Number 1 Circuit – Data Erratic, …
DTC fault codes for CUMMINS ISB diesel engines
CUMMINS ISB Diesel engines Fault Codes list DTC 111 Electronic Control Module ECM Microprocessor 115 Engine Speed Sensor ESS Circuit 122 Intake Manifold Pressure Sensor Circuit 123 Intake Manifold Pressure Sensor Circuit 131 Accelerator Position Sensor Circuit 132 Accelerator Position Sensor Circuit 133 Remote Throttle Position Sensor 134 Remote Throttle Position Sensor 135 Oil Pressure Sensor Circuit 141 Oil Pressure Sensor/Switch Circuit Choice 141sn Oil Pressure Sensor Circuit …
Cummins Trouble Code List for QSB, QSC, QSL9, QSM11, QSX15, QSK19, QSK23, QST30, QSK45, QSK60, QSK78 Engines
System codes are marked Cense (* *) high power engines QSK 45/60/78, severity of malfunctions:1-requires immediate engine shutdown2-Requires elimination on the day of occurrence3-Requires elimination at next service4-For information FAULT CODE (LAMP SID, PID FMI SPNIMF DESCRIPTION 111Red S25412 62912 Engine control Unit-critical internal error 112Red S0207 6357 The injection syncer does not respond to the commands of the control unit 113Yellow S0203 6353 Injection …
Cummins Trouble Codes QSB, QSC, QSL9, QSM11, QSX15, QSK19, QSK23, QST30, QSK45, QSK60, QSK78
The Cummins Fault Codes Manual for QSB, QSC, QSL9, QSM11, QSX15, QSK19, QSK23, QST30, QSK45, QSK60 and QSK78 engines is a comprehensive diagnostic and troubleshooting resource. This manual provides detailed information and instructions for identifying and troubleshooting various fault codes specific to Cummins engines in these models. It is an essential reference for technicians, operators and enthusiasts working with these Cummins engines. The manual covers …
About OBD2 Diagnostic Trouble Codes (DTC)
OBD2, short for On-Board Diagnostics 2, is a standardized diagnostic system found in most vehicles manufactured after 1996. It's a powerful tool that allows you to access and interpret information about your vehicle's systems, including any potential issues. OBD2 Diagnostic Trouble Codes (DTCs) are numeric codes that provide specific information about detected problems within your vehicle's systems.
Decoding the Codes
OBD2 DTCs are formatted as a 5-digit code, typically starting with a "P" for powertrain-related issues. The first digit represents the area of the vehicle system affected, the second digit indicates a more specific subsystem within that area, and the last three digits identify the specific fault.
Common DTC Categories:
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P0XXX: Powertrain (engine, transmission, emissions, etc.)
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B0XXX: Body (body control module, lighting, door locks, etc.)
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C0XXX: Chassis (ABS, traction control, stability control, etc.)
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U0XXX: Network Communication (communication issues between modules)
Using a Scan Tool
To access DTCs, you'll need an OBD2 scan tool. These devices plug into the OBD2 port, typically located under the dashboard, and can display DTCs and other vehicle data.
Interpreting DTCs
Once you have the DTCs, you can use an online database or a repair manual to interpret their meaning. Understanding the specific fault identified by the code can help you diagnose and troubleshoot problems.
Important Notes:
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DTCs are just the beginning of the diagnostic process. They point to potential problems, but further investigation may be necessary to pinpoint the exact cause.
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Always consult a qualified technician for complex repairs, as improper troubleshooting can lead to further damage or safety hazards.
Where to find more information:
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Online Databases: Numerous websites offer free and paid databases for decoding OBD2 DTCs.
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Repair Manuals: A specific repair manual for your vehicle model can provide detailed information about DTCs and troubleshooting procedures.
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Professional Mechanics: A certified mechanic can help you diagnose and repair problems associated with DTCs.
OBD2 is a powerful tool for understanding your vehicle's health and performance. By understanding the basics of OBD2 and DTCs, you can take a more proactive approach to vehicle maintenance and repair.