If no abnormalities are discovered in fuel injector operation, proceed to the next step.Īfter testing the fuel injectors, disconnect all controllers from the injector driver circuit and use the DVOM to test system circuits. Replace defective fuel injectors as necessary. Once the oscilloscope test leads are connected, note any inconsistencies in the wave (voltage) pattern. Consult your source of vehicle information for diagnostic flow charts, wiring diagrams, connector face views, connector pin-out charts, and recommended testing procedures/specifications for the vehicle in question. If system wiring and connectors appear to be functional, use the oscilloscope to test each individual fuel injector.
Attempting to patch a fuel injector wiring harness often results in the PCM receiving a skewed fuel injector driver confirmation signal and additional codes being stored. You will want to replace burned or damaged components as required. Perform a visual inspection of all related wiring and connectors.
If the code fails to reset within a reasonable period of time, the condition may need to worsen before an accurate diagnosis can be obtained. If the PCM enters readiness mode without the code being reset:Ĭhances are that you are dealing with an intermittent condition. After clearing the codes from the PCM, I test-drive the vehicle until the PCM enters readiness mode or the code is reset. Before clearing the codes, I write this information down for reference purposes. I like to begin my diagnosis by connecting the scanner to the vehicle diagnostic port and retrieving all stored codes and related freeze-frame data. Without an oscilloscope, it will be impossible to monitor injector function and arrive at a successful diagnosis. A scanner, such as the Snap-On Modis, with a built-in DVOM and oscilloscope will work well for this task. In order to accurately diagnose a stored code P062E, a diagnostic scanner, a digital volt/ohmmeter (DVOM), an oscilloscope, and a source of vehicle diagnostic information will be required. What are some P062E troubleshooting steps?
This action occurs for each cylinder in sequential repetition. Since a constant supply of battery voltage is already present on the circuit (whenever the ignition is on), this initiates a precise spray of fuel from the pressurized fuel injector. The PCM controls injector timing and pulse width by applying a ground pulse to the circuit at exactly the right instant. The fuel injector driver is an integral part of the PCM or the electronic fuel injection (EFI) controller (if applicable). Bank two denotes the bank of the engine that doesn’t contains the #1 cylinder.
If your OBD-II vehicle has stored a code P062E, it means that the powertrain control module (PCM) has detected a performance issue with the fuel injector driver circuit for engine bank 2. Although generic, the exact repair steps may vary depending on year, make, model and powertrain configuration.
That may include but is not limited to vehicles from Ford, Honda, Hyundai, Kia, Land Rover, Toyota, Volkswagen, etc. This is a generic diagnostic trouble code (DTC) and applies to many OBD-II vehicles (1996-newer). OBD-II Trouble Code Technical Descriptionįuel Injector Driver Circuit Performance Bank 2 What does that mean?