What are the most important DTC codes to be aware of when buying a used car?

Dec 12, 2016 ... There are two basic routes for diagnosing codes. The first is the manufacturer service manual. The service manual contains diagnostic routines ... Jun 10, 2021 ... A P2638 trouble code is usually caused by a defective driver in the PCM, or a related control module, as well as a possible loose electrical connection. Oct 4, 2019 ... Diagnostic trouble codes (DTCs) are normally the main goal of scanning, however, DTCs are often misunderstood. Nov 5, 2021 ... When the transmission control unit (TCU) has an error code, it communicates with the PCU and throws a P0700 to indicate that the TCU has a problem. Dec 13, 2016 ... This document supersedes SAE J2012 DEC2007, and is technically equivalent to ISO 15031-6:2010 with the exceptions described in 1.2. This ... Jan 20, 2025 ... We'll explain everything to help you understand the ins and outs of DTC codes and how efficient diagnostics can save your fleet time, money, and a lot of ... Oct 14, 2022 ... DTC codes are the language your vehicle's computer uses to tell you what's wrong. They're standard in all delivery vehicles — from compact SUVs ... If you have access to an OBD-II scanner, feel free to search our database so you can get a better idea what might be wrong with your vehicle. Sep 6, 2024 ... Common DTC Codes and Their Fixes · P0300: Cylinder misfire detected. This means the engine isn't working right, often due to problems with the ... A DTC code, also known as Diagnostic Trouble Code, refers to a code generated by the onboard diagnostic system of a vehicle. This system is designed to monitor ...