Often times, there is something wrong with a specific aspect of the ignition system, and replacing the entire thing is unnecessary.
#Ford diagnostic trouble codes code
Code P0316 Common Diagnosis Mistakes:Ī common diagnosis mistake is replacing the entire ignition system without first confronting the other codes that are associated with Code P0316. If your car is experiencing Code P0316, it is imperative that you confront the problem as soon as possible. Damaged or Frayed Crankshaft Position Sensor WiresĬode P0316 is severe because it can affect your vehicle’s ability to start, along with affecting your vehicle’s ability to operate safely.Faulty Crankshaft or Camshaft Position Sensors.There are several other codes that typically go along with code P0316, and it is important that you clear these first before confronting the main issue. If any on these are outside of their designated parameters, the engine will misfire. The ECM uses information relating to the crankshaft position, the camshaft position, and RPM of the engine to determine ignition timing and fuel delivery. The component or process that is the subject of the pending code is often involved as part of the enabling criteria to successfully complete a monitor.Engine Misfire Detected on Startup (First 1000 Revolutions) What Does Code P0316 Mean?Ĭode P0316 is triggered when your Engine Control Module (ECM) detects that the position of either your vehicle’s crankshaft or camshaft is outside of its parameters, which can lead to an engine misfire upon starting. The pending code feature is also helpful in trying to figure out why a particular system monitor will not set. This data allows for duplication of conditions so you can hopefully isolate the fault.
#Ford diagnostic trouble codes professional
The freeze frame data will give the repair professional the actual operating conditions that were occurring when the fault triggered. When a pending code is stored in the PCMs memory, freeze frame data is also captured. If the fault reappears for the specified number of times, the code will then mature into a diagnostic trouble code (DTC) and the PCM will command the check engine light to illuminate. If the fault does not reappear within 40 warm-up cycles, the code will be cleared from memory. Pending codes are caused by intermittent faults or faults that the PCM needs to see happen in two consecutive warm-up cycles to set the code. These codes are referred to as pending or maturing codes. However, in some cases you can have a situation where there is a P0xxx code in memory and the check engine light is not commanded to be illuminated. If the PCM commands the check engine light to illuminate there will be at least one P0xxx code stored in memory. Failures occurring in non-powertrain systems such as ABS, HVAC (Bxxxx, Cxxxx, Uxxxx codes) may be retrieved through the OBDII diagnostic link connector but do not illuminate the check engine light and are not involved with (NYVIP2) emissions inspections. Numbers 1 and 2 are for fuel or air metering problems, 3 is for ignition problems or engine misfire, 4 is for auxiliary emission controls, 5 relates to idle speed control problems, 6 is for computer or output circuit faults, and 7 and 8 relate to transmission problems. P1xxx codes refer to manufacturer specific codes which often cover areas that are not emissions related and may not cause the check engine light to illuminate.įor P0xxx codes, the third character in the code identifies the system where the fault occurred. OBD II emissions related DTCs are from the powertrain and begin with P0xxx. The DTC format and general code types are shown in this chart. OBD II DTCs consist of a five-digit alphanumeric code. This means the misfire code P0300 represents the same failure on a Chevy, Chrysler, Ford, or Toyota. The diagnostic codes that are required by law on all OBDII systems are standardized and all vehicle manufacturers use the same common code list. These codes are intended to help you determine the root cause of the failure. When the PCM recognizes and identifies a problem a DTC for that fault is stored in its memory.
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