#Service tool version 3400 engine how to#
#Service tool version 3400 engine code#

If your vehicle senses leaking coolant or burning oil, these ECU fault codes will be triggered to indicate that the oxygen sensors have noticed an inefficiency with the catalytic converter.

#Service tool version 3400 engine code#

P0420, P0430ДЄ catalytic converter code usually is triggered when the converter needs replaced. These issues are commonly related to leaks, and experienced technicians can find the exact location of the leak to find the part in need of repair. Problems with the Evaporative Emission Control (EVAP) System will trigger these codes if fuel vapor is failing to escape from the fuel tank. This problem can be caused by leaky valves, dirty sensors or fuel injectors, or low fuel pressure due to pumps or the fuel pressure regulator. These codes are triggered when the fuel/air ratio includes too much air or too little fuel, giving you a lean fuel mixture. Misfires can occur for many reasons, so it is important to have your car looked at by an auto technician to determine which parts are faulty and in need of a fix. The last two digits specify which engine cylinder is experiencing the misfires, or if the misfires are not contained to one cylinder. These codes represent problems with engines misfiring. The following ECU fault codes are triggered by commonly seen vehicle errors. Common ECU Fault CodesДespite the amount of diagnostic trouble codes, some vehicle problems are seen more often than others, causing certain ECU fault codes to be more common. The last two digits in the ECU fault code tell the exact problem that your car is experiencing. Vehicle Speed Control and Idle Speed Control Injector Circuit (Fuel or Air Metering)ДҐ. Emission Management (Fuel or Air Metering)Дў. The following numbers indicate problems within specific systems or controls within your vehicle.ДЎ. The next digit explains what the ECU trouble code pertains to. The second digit in an ECU fault code will usually be вЂњ0вЂќ or вЂњ1.вЂќ A вЂњ0вЂќ tells you that it is a generic ECU fault code, while a вЂњ1вЂќ indicates that the code is specific to your car manufacturer. вЂњCвЂќ codes point to chassis problems, including braking, steering, or suspension issues, and вЂњUвЂќ codes indicate network communication errors, such as wiring problems. вЂњBвЂќ codes signal body issues, such as problems with climate control, lighting, or airbags. In most cases, you will see a вЂњPвЂќ that indicates a powertain issue, which includes a vehicleвЂ™s engine, emission, and transmission systems. The first letter (either P, B, C, or U), informs the reader of the system being affected by the problem.

#Service tool version 3400 engine how to#

How to Tell WhatвЂ™s Wrong Using ECU Fault CodesД®CU fault codes include a letter followed by four numbers.

These codes provide information on which systems are malfunctioning, where the problem is located, and the exact issue that is causing your check engine light to remain illuminated. If your check engine light comes on, the ECU fault code can tell you exactly what problem your vehicle is experiencing.Д®CU fault codes, also known as diagnostic trouble codes (DTC) are part of the on-board diagnostic (OBD II) system in your car. When a carвЂ™s Engine Control Unit (ECU) senses a problem or malfunctioning within the vehicle, it triggers an ECU fault code that will turn on the check engine light.