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 Dodge Chrysler Jeep Plymouth Fault Codes DTC Manual is a comprehensive guide specifically designed to provide vital information and instructions for technicians working on Dodge, Chrysler, Jeep and Plymouth vehicles. This manual covers a wide range of standard and specific fault codes, known as Diagnostic Trouble Codes (DTCs), to ensure efficient and effective diagnosis and repair of vehicle problems. DTCs are codes generated by …
P0087 (flashing code 227) shared sump low pressure fault (for pump without pressure supply) The main fault symptoms • Engine severe vibration. • idling unstable • Output Fall • exhaust smoke • It may be too large output P0088 (flashing code 118) shared the tank pressure is abnormally high (first or second stage) The main fault symptoms • Engine severe vibration • idle instability • …
Error Codes Error String Description101 CRANK A crank signal was not detected by the ECU1.102 FUEL The fuel sensor is open-circuit103 EN TMP The engine temperature sensor is open-circuited.104 HYD TMP The hydraulic temperature sensor is open-circuited.105 SET PT The throttle set potentiometer is open-circuited.106 SENS PT The throttle sense potentiometer is open-circuited.107 OIL SW The oil pressure switch is reporting oil pressure is present …
JAC Truck HFC4DA1-2C Engine Fault Codes DTC P0030 – The linear oxygen sensor heater circuit is open P0031 – The linear oxygen sensor heater circuit is short to ground P0032 – The linear oxygen sensor heater circuit is short to battery P0045 – EGR valve circuit is open P0046 – Overtemperature of EGR valve bridge-H chip P0047 – EGR valve circuit is short to ground P0048 …
Fault Diagnosis The electronic control unit (ECU) continuously monitors sensors, actuators, circuits, MILs (Malfunction Indicator Lights), battery voltage, and even itself. It performs reliability tests on sensor output signals, actuator drive signals, and internal signals. When there are faults in a specific link or a signal is deemed unreliable, the ECU immediately records fault information in the RAM fault memory. This information is stored as …
IVECO EDC MS6.2 SW 5.X Control Unit DTC Flashing code – Indicator lamp EDC – Fault TRUCK 1.1 LIGHT CONSTANT Vehicle speed signal 1.2 LIGHT CONSTANT Torque Switch 1.3 OFF Cruise control 1.4 LIGHT CONSTANT Accelerator pedal. 1.5 OFF Clutch pressure sensor 1.6 Steady on The likelihood of a signal from the brake pedal sensors 1.7 OFF The plausibility of the ratio between the accelerator and brake …
ELECTRONIC CONTROL UNIT MALFUNCTION CODE Errors in memory 01 Error in calibration parameters of level sensors in memory 02 Error parameters in memory 03 Error in calibration parameters of pressure sensors in memory 07 Sample values for level sensors in memory 09 Memory Fault 04 Malfunction in the electronic control unit 06/08/80 Vehicle speed signal (open or short to + DC) 81 Level sensor malfunction: …
DTC FMI Failing component Type of Failure Visible failure Possible Cause Repair action 123 Edc lamp Warning light permanently off. Short circuit or defective wiring. Check wiring. 124 Cold start lamp Warning light permanently off. Short circuit or defective wiring. Check wiring. 125 Main relay defect Possible problems during after-run. Relay short circuit to battery positive or ground. Check wiring between ECM and battery.Replace relay …
0111 Malfunction of the vehicle speed sensor circuit0112 Sensor Circuit Malfunction 1 pedal acceleration0113 Mismatch signal switches the brake pedal and acceleration sensors0116 Circuit Malfunction clutch switch0117 Incorrect signal switches the brake pedal0119 Loss of voltage onboard network controller from the terminal “15”0122 Control Circuit Malfunction lamp MIL (Check Engine)0126 System voltage is outside the operating range of the controller0131 Circuit Malfunction coolant temperature sensor …
IVECO Truck EuroTronic Error Codes DTC Requiring Immediate Engine Shutdown 06 – short circuit to ground at the output Y6 (valve-switch 1/3 gear) 07 – short circuit to ground at the output Y7 (valve switch 2/4 gears) 10 – short circuit to ground at the output at Y10 (main valve) 38 – open circuit at the output of Y6 (valve switch 1/3 gear) 39 – open …
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.
