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.
<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 …
Component Codes (MID)MID / Description / Old Text Message / New Text Message * 128 Engine # 1 ENGINE ENG130 automatic transmission – † Trans136 Anti-lock Brake System (ABS) TRCTR BRK Brake140 Panel, Left INSTRCLST Instr142 Panel, Right # 1 INSTRCLST MGMT172 Diagnostic System DIAGNOSTC DIAG179 Black Box LOG CMPTR CMPTR181 Satellite System COMM SAT by Satl190 ACPU A / C air conditioning219 Radar VORAD …
The Freightliner Cascadia J1939 Fault Codes – System Overview provides technicians and mechanics with a comprehensive understanding of the J1939 diagnostic system used in Freightliner Cascadia trucks. This overview serves as a valuable reference for diagnosing and troubleshooting faults indicated by J1939 fault codes. J1939 Diagnostic System: The review begins with an explanation of the J1939 diagnostic system, a standardised protocol used to communicate and …
PTO and Fire Pump Control J1587 Fault Codes MID SID FMI DESCRIPTION ACTION 164 25 7 End of Frame Air (PTO and fire pump control)–unexpected air pressure feedback Solenoid is not activated, but CHM senses that the pressure switch is in an unexpected state. For example, a normally closed solenoid is off, but air pressure is detected.Check the following:• Air system• Pressure feedback circuit including …
Fault Code Guide (MID 130 SIDs) SID FMI Text Message Failure Reason 18 02 Prim Selector Erratic The shift lever does not shift gears. 33 03 MultiPress Ind Short Hi The hydraulic pressure sensor circuit is shorted to power. 33 04 MultiPress Ind Short Lo The hydraulic pressure sensor circuit is shorted to ground. 33 05 MultiPress Ind OPEN The hydraulic pressure sensor circuit is …
Meritor WABCO Pneumatic Antilock Braking System (ABS) – Table of DTCs Left Front Wheel Sensor Troubleshooting (SID 001) MID SID FMI Problem Test Test Result Action 136 001 01 Incorrect sensor air gap 1. Adjust the sensor. Check the AC voltage across pins 7 and 8 of the black X2 ECU connector while rotating the LF wheel 30 rpm. Voltage is 0.2 Vac or greater …
The Freightliner Argosy Fault Codes List is a comprehensive reference for technicians and mechanics working on Freightliner Argosy trucks. This list provides a detailed compilation of fault codes specific to the Argosy model to assist in the accurate diagnosis and troubleshooting of potential problems. Diagnostic code structure: The fault code list begins by explaining the structure and format of the diagnostic codes used in the …
The ECU 128 trouble code on Freightliner trucks typically indicates an engine problem. When Code 128 appears on the display, it means that the engine control system has detected a malfunction or fault in the engine. Common causes of the ECU 128 code on Freightliner trucks include If you encounter an ECU 128 code on your Freightliner truck, it is advisable to contact an authorised …
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.
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.
