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.
The Haval Error Codes List is a comprehensive guide specifically designed for technicians and mechanics working with Haval vehicles. This list provides detailed information on the error codes and their meanings, allowing accurate diagnosis and effective troubleshooting of problems on Haval vehicles. One of the key highlights of this fault code list is its in-depth coverage of fault codes specific to Haval vehicles. It provides …
The Haval Diagnosis List is a comprehensive guide specifically designed for technicians and mechanics working with Haval vehicles. This Diagnostics List provides detailed information on the diagnostic procedures, trouble codes and troubleshooting steps for various systems on Haval vehicles. One of the key highlights of this Diagnostics List is its in-depth coverage of the diagnostic procedures for various systems and components on Haval vehicles. It …
00001 Brake system control unit00002 Transmission control unit00003 Control unit00004 Control unit for engine operation on gas-J65900016 Ex. Rear right heater for footwell / defroster-V19500017 Ex. Rear left footwell defrost / defroster motor electric motor-V19600018 Cold air flap control motor-V19700019 Warm air flap control motor-V19800020 The electric motor of the right defroster and deflector flap-V19900021 The electric motor of the left defroster and deflector flap-V20000022 …
2000-05 GMC Truck Error Codes Engine P codes: 0030 HO2S Heater Control Circuit Sensor 1 0036 HO2S Heater Control Circuit Sensor 2 0101 MAF Sensor Performance 0102 MAF circuit low freq 0103 MAF circuit high freq 0107 MAP low voltage 0108 MAP high voltage 0112 IAT low voltage 0113 IAT high voltage 0117 ECT low voltage 0118 ECT high voltage 0121 TP sensor performance 0122 TP sensor low …
The GMC Engine Fault Codes DTC guide is a comprehensive manual specifically designed to provide GMC vehicle owners with important information and instructions regarding engine fault codes. This guide covers various aspects of engine diagnosis, troubleshooting and maintenance to ensure optimum performance and reliability for GMC owners. Engine Fault Codes, also known as Diagnostic Trouble Codes (DTC), are specific codes that indicate problems or malfunctions …
GM CODES. GM Code List P1000-P1299 NOTE: For some code numbers, there may be more than one definition because the same number may be used for different faults on different model years or models. P1031 ….02 Sensor heater control circuit problem P1105….Secondary Vacuum Sensor circuit P1106….MAP sensor circuit voltage intermittenthigh or low P1107….MAP sensor voltage intermittent low P1108….BARO to MAP sensor circuit comparison too high P1109….Secondary …
<P000A>P000A INTAKE VVT RESPONSE SLOW</P000A><P000B>P000B EXHAUST VVT RESPONSE SLOW</P000B><P0010>P0010 VVT INTAKE CONTROL VALVE CIRCUIT OPEN</P0010><P0011>P0011 INTAKE VVT CONTROL UNREASONABLE </P0011><P0012>P0012 WHEN STARTING INTAKE VVT NOT IN ACQUIESCENCE POSI</P0012><P0013>P0013 VVT EXHAUST CONTROL VALVE CIRCUIT OPEN</P0013><P0014>P0014 EXHAUST VVTCONTROL UNREASONABLE </P0014><P0015>P0015 WHEN STARTING EXHAUST VVT NOT IN ACQUIESCENCE POSI</P0015><P2088>P2088 VVT INTAKE CONTROL VALVE CIRCUIT SHORT TO GND</P2088><P2089>P2089 VVT INTAKE CONTROL VALVE CIRCUIT SHORT TO POWER SUPPLY</P2089><P2090>P2090 VVT EXHAUST …
<P0016>P0016 CAMSHAFT AND CRANKSHAFT INSTALL RELATIVE POSI UNREASONABLE</P0016><P0030>P0030 UPSTREAM O2S HEAT CONTROL CIRCUIT MALF</P0030><P0031>P0031 UPSTREAM O2S HEAT CONTROL CIRCUIT VOLT TOO LOW</P0031><P0032>P0032 UPSTREAM O2S HEAT CONTROL CIRCUIT VOLT TOO HIGH</P0032><P0036>P0036 DOWNSTREAM O2S HEAT CONTROL CIRCUIT MALF</P0036><P0037>P0037 DOWNSTREAM O2S HEAT CONTROL CIRCUIT VOLT TOO LOW</P0037><P0038>P0038 DOWNSTREAM O2S HEAT CONTROL CIRCUIT VOLT TOO HIGH</P0038><P0053>P0053 UPSTREAM O2S HEAT INNER RESISTANCE UNREASONABLE</P0053><P0054>P0054 DOWNSTREAM O2S HEAT INNER RESISTANCE UNREASONABLE</P0054><P0101>P0101 AIRFLOW …
<P0003>P0003 CONTROLLER MALF</P0003><P3FD8>P3FD8 CONTROLLERЈ¬RAM MALF</P3FD8><P3FD9>P3FD9 CONTROLLERЈ¬OUTER RAM MALF</P3FD9><P3FDB>P3FDB CONTROLLERЈ¬EEPROM MALF</P3FDB><P3FDC>P3FDC CONTROLLERЈ¬CHECK SUM MALF</P3FDC><P3FDE>P3FDE CONTROLLERЈ¬SELF-CHECK MALF</P3FDE><P3FDF>P3FDF CONTROLLERЈ¬PROGRAM MALF</P3FDF><P3FE0>P3FE0 CONTROLLERЈ¬ELECTRIC MALF</P3FE0><P3FE1>P3FE1 CONTROLLERЈ¬FUNCTION MALF</P3FE1><P3FE3>P3FE3 CONTROLLERЈ¬DETECT CLOCK</P3FE3><P3FF4>P3FF4 CONTROLLERЈ¬INNER SENSOR MALF</P3FF4><P0412>P0412 CONTROLLER NOT ENCODE</P0412><P0414>P0414 CONTROLLER CODING WRONG(BYTE CODE)</P0414><P029C>P029C BATTERY VOLT KL30 MALF</P029C><P046A>P046A ABS WORK ABNORMAL</P046A><P0520>P0520 DATA BUS WORK ABNORMAL</P0520><P0522>P0522 ENGINE CONTROLLER MALF</P0522><C0664>C0664 ENGINE CONTROLLER CODE MALF</C0664><P0523>P0523 TRANSMISSION CONTROLLER MALF</P0523><P052C>P052C FULL WHEEL DRIVE CONTROLLER MALF</P052C><P011B>P011B LF SPEED SENSOR MALF</P011B><P011D>P011D RF SPEED …
<P000A>P000A INTAKE VVT RESPONSE SLOW</P000A><P000B>P000B EXHAUST VVT RESPONSE SLOW</P000B><P0010>P0010 VVT INTAKE CONTROL VALVE CIRCUIT OPEN</P0010><P0011>P0011 INTAKE VVT CONTROL UNREASONABLE </P0011><P0012>P0012 WHEN STARTING INTAKE VVT NOT IN ACQUIESCENCE POSI</P0012><P0013>P0013 VVT EXHAUST CONTROL VALVE CIRCUIT OPEN</P0013><P0014>P0014 EXHAUST VVTCONTROL UNREASONABLE </P0014><P0015>P0015 WHEN STARTING EXHAUST VVT NOT IN ACQUIESCENCE POSI</P0015><P2088>P2088 VVT INTAKE CONTROL VALVE CIRCUIT SHORT TO GND</P2088><P2089>P2089 VVT INTAKE CONTROL VALVE CIRCUIT SHORT TO POWER SUPPLY</P2089><P2090>P2090 VVT EXHAUST …
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:
P0XXX: Powertrain (engine, transmission, emissions, etc.)
B0XXX: Body (body control module, lighting, door locks, etc.)
C0XXX: Chassis (ABS, traction control, stability control, etc.)
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:
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.
Always consult a qualified technician for complex repairs, as improper troubleshooting can lead to further damage or safety hazards.
Where to find more information:
Online Databases: Numerous websites offer free and paid databases for decoding OBD2 DTCs.
Repair Manuals: A specific repair manual for your vehicle model can provide detailed information about DTCs and troubleshooting procedures.
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.
