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- When the CEL is illuminated, it means that somewhere in your engine and drivetrain control system, a sensor has sent a reading to the engine's computer that's outside of normal parameters, and the computer has registered this as a trouble code.
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When a fault is detected, the OBD system triggers a warning light—often the “Check Engine” light—prompting the need for further investigation. These codes help pinpoint the exact location and nature of the fault, enabling technicians to carry out accurate repairs.
Feb 10, 2024 · Discover the essentials of Understanding and Diagnosing Check Engine Light Codes. Learn how to decode common issues, interpret diagnostic trouble codes (DTCs), and take effective action to maintain your vehicle's performance and reliability.
Jun 7, 2016 · Your Check Engine Light is illuminated when a fault is detected with one of your vehicle’s monitored systems. In order to find out the reason the light is illuminated, you need to read the codes through the OBD port.
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- Can I Buy An OBD Scanner?
- What Does My DTC Mean?
- Can I Rely on The DTC?
- What Is Racscan?
Yes. If your ‘check engine’ light keeps coming on, or you simply want to be prepared for every eventuality, you can invest in your very own OBD scanner. Consumer level Scanners can typically cost between £30 and £40, with professional devices costing upwards of £2000 and more, although while you will be able to read your car’s DTCs you’ll still nee...
Thousands of different DTCs can be displayed on the OBD system scanner, so it’s best to look online to find out what the particular code means for your specific car. When searching online, it’s important to check you’re referring to the most up-to-date fault codes to ensure you identify the correct one for your particular vehicle. Cross-reference b...
While a DTC will identify where your car’s issue lies, it’s important to remember that it won’t tell you exactly what to replace and if you don’t check it against the correct list of codes you could end up with the wrong diagnosis. Bear in mind that plenty of websites are still listing out of date or just plain incorrect lists of codes. To ensure y...
Designed and developed in partnership with one of the world’s leading vehicle diagnostic software suppliers, RACScan is the state-of-the-art OBD scanner carried by every one of our patrols. If you break down, our patrols will be able to plug their RACScan into your car’s diagnostic port and analyse its computer systems on the roadside. RACScan is t...
Apr 11, 2023 · The simplest way to check a CEL code is by using an On-board Diagnostic-II scan tool (OBD2 scanner). This device plugs into a vehicle’s Data Link Connector (DLC or “OBD2 port”) and reads diagnostic data, which you can use to find out what your check engine light means.
- Joshua Barrett
The check engine light, also known as the Malfunction Indicator Lamp (MIL), is a warning light that indicates engine and transmission system problems. This symbol prompts you to have a diagnostic check to prevent further damage.
Sep 4, 2023 · One of the most common B-range codes is B0028, which stands for Right Front Passenger Side Deployment Loop Resistance Low, which is part of the Supplemental Restraint System (SRS). While that sounds daunting, it typically refers to an issue with the airbag.
