P2312 - OBD Trouble Code

<<See All OBD Codes

The trouble code P2312 can be elucidated as Ignition Coil "E" Primary Control Circuit Low. This code is a generic trouble code, meaning it applies to all vehicles equipped with the OBD-II system, especially those made from 1996 up to present. It’s also more common among Audi, Citroen, Chevrolet, Ford, Hyundai, Nissan, Peugeot, and Volkswagen vehicles. Specifications on the definition, troubleshooting, and repairs, of course, vary from one make and model, powertrain configuration type, to another.

1. Engine Control Module - Most of the time it is difficult to intercept the ECM faults and thus must be checked for thoroughly. There can be a problem with the circuit or the software might have malfunctioned. Thus repair, replace or reprogram the component as per requirement.
2. Ignition Coil - The overall performance of the car engine would get affected due to some faults in the ignition coil. So it will be a good decision to replace them now.
3. Powertrain Control Module - If the PCM is faulty, it can stores wrong OBD codes and can lead to misdiagnosis. This can happen due to misinterpretation of data received from the various sensors and components which also affects the vehicle’s performance. Thus replace it immediately.
4. Oxygen Sensor – The O2 sensor is mounted in the exhaust manifold to monitor how much unburned oxygen is in the exhaust as the exhaust exits the engine. Monitoring oxygen levels in the exhaust is a way of gauging the fuel mixture. Thus, replace faulty O2 sensor now!
5. Fuel Injector – Bad or clogged fuel injector can cause repeated engine stalling, engine misfires, lack of power, and excessive smoke from the exhaust. Thus, it needs to be replaced immediately. Buy new fuel injector now!
6. Electronic Control Unit – If the ECU is at fault, it will not be able to read the boost converter temperatures correctly leading to under performance. Thus, replace faulty ECU now!
7. Diagnostic Tool - Choose from our diagnostic tools collection that will come handy to detect and correct the OBD error code.

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• Declining engine performance
• Check engine light might come into signal
• Diminishing fuel efficiency
• Appearance of other codes

The repairs which you will have to do to correct this fault code are simply straightforward; you can surely pinpoint the necessary repairs on the basis of your diagnosis. Have a look at some common fixes:

• The ignition coil should be restored to working order
• Recondition the non-functioning ignition coil wiring
• The malfunctioning fuel injector should be repaired or replaced as per the need
• Carefully adjust the faults in the engine parts
• It is necessary to perform proper service of the unsound PCM
• You must fix the defective ignition coil connector
• It is essential to restore the flawed wiring
• Repair or replace the quirky camshaft or crankshaft sensor
• Rehabilitate the defaults in the spark plug

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of ignition coil, circuit wires, ignition coil connectors, spark plug, powertrain control module, engine control module, pcm car, ecm car, body control module component, ecu car, transmission shift solenoid, ignition system parts, pcm module, ecm module and many more. Now all your problems would vanish within no time.

Here are some steps which you should follow in order to diagnose this fault code:

• The mechanic or the technician will use a diagnostic scanner or code reader like DVOM to visually scan for the error codes in the vehicle.
• Use the vehicle information source to search for applicable technical service bulletins (TSB). If you locate a TSB that matches the vehicle make and model, symptoms exhibited, and the code stored, it will help you to arrive at a diagnosis.
• You may also need to obtain diagnostic flow charts, wiring diagrams, connector face views, connector pin out charts, component locations, and component testing procedures/specifications from the vehicle information source.
• All this information will be needed to correctly diagnose the stored code P2312.
• After that test drive the vehicle to see if the code P2312 is reset.
• Drive until one of two things happens: Either the PCM enters readiness mode or the code is reset. If the code is reset, continue with the diagnosis.
• If it is not, you are dealing with an intermittent condition which may have to worsen before an accurate diagnosis may be achieved. Now if the code has been restored, then you must continue with the diagnosis.
• One should obtain connector face views, connector pin out charts, component locator charts, wiring diagrams, and diagnostic flow charts by utilizing your source of vehicle information.
• A visual inspection of associated wiring and connectors should be performed. Make sure to repair or restore the wiring that has been cut, burned, or flawed.
• Wiring on top of the engine is often defective due to wildlife attempting to stay warm in cold climates.
• The DVOM should be used to inspect the voltage and ground circuits at the ignition coil. If no voltage has been detected, then you should check the system relay and associated fuses.
• Restore the faulty relays or blown fuses as per the requirement.
• If voltage and ground have been detected at the coil, examine the corresponding ground circuit at the PCM connector with the engine running.
• If ground pulse is detected there, then there is an open circuit between the coil as well as the PCM.
• If no ground pulse is discovered there, then there is some fault in the PCM or there might be PCM programming error.

Common Mistakes When Diagnosing The P2312 Code

• Many a times the technicians would not realize and would just replace the ignition coils and spark plugs when in reality the wiring and connectors should be restored so that it can work properly.
• Make sure that you first of all check the other possible causes rather than just replacing the correct auto parts directly.