Error Code P048D: What It Means & What To Do?

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OBD error code P048D flashing? Are you experiencing lack of engine power and troubles while starting? If your answer is “YES”, then you are experiencing OBD error code P048D. Wondering what this error code indicates? Well, this OBD error code P048D is related to your vehicle’s EPC sensor and is a generic obd code. Meaning thereby that it applies to all OBD-II generic vehicles. To know more about this obd error code, go through the sections below.

OBD error code P048D just like other related obd error code (P048C, P048B, P048E, P048F) indicates some problem with the exhaust pressure control valve circuit. As you already know that exhaust pressure control valve is a typically a part of diesel engines. If the vehicle's PCM detects a low exhaust pressure control valve circuit signal it will set the error code P048D. In other words, it means that the exhaust pressure control valve position sensor circuit is shorted or low. To know about few of its common symptoms have a look at the below listed bullet point.

What causes this problem with the Exhaust Pressure Control Valve Position Sensor/Switch Circuit Range/Performance?

• Problematic EPC (exhaust pressure control valve)
• Defective or damaged EPC wiring and circuits
• A faulty powertrain control module
• EPC harnesses being open or shorted
• Bad electrical connections

1. Exhaust Pressure Control Valve - Having problems with your exhaust pressure control valve can really escalate your problem with the error code P048D. So, we definitely recommend you to stop thinking and replace your damaged or faulty EPC valve today.
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3. PCM - There is a possibility that if you are facing OBD error code P048D your PCM itself is damaged and is demanding for a quick change. So what are you waiting for? Buy a new one with us now.
4. Manifold Absolute Pressure Sensor -  if you are facing OBD error code P048D then it might demand a new MAP sensor if found faulty. If you wish to get it done at the earliest then you can simply browse through our website to find one for your make and model.
5. Intake Air Temperature Sensor - Since PCM ues the signals from MAP sensor, IAT sensor to determine the valve, either of them if damaged can lead to problems. So replace the faulty IAT sensors today.
6. Diagnostic Tools -  If you wish to be that DIY guy and  in order to detect and diagnose all the obd error code, you will need few diagnostic tools. So, what are you waiting? Dig into the world of diagnostic tools with PartsAvatar.

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P048D here:

Common Symptoms

• Fall in engine power and efficiency
• Illuminating Check engine light (CEL)
• Problems while starting such as aard starting condition
• Rise in vehicle emissions

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:

Check and repair the faulty exhaust pressure control valve circuit and its related wirings and connectors, if found lost, damaged or corroded. Also make sure that your vehicle’s PCM and all exhaust parts, IAT sensors and MAP sensors are in good working condition to ensure the disappearance of this fault code P048C.

If you need any part to fix this issue such as EPC sensor, MAP sensors, Exhaust components or for that matter any part then you can easily browse through our website and get your trophy parts in no time.

Now, in order to correct the problem it is extremely essential to diagnose it efficiently and appropriately. While doing so you might commit few mistakes, to prevent you from doing so we have listed out few steps for you to keep in mind.

• Scan the codes and then freeze the frame data and after that you will have to scan the engine control module for the code and then freeze the frame data.
• Now, if you come across any coolant temperature or air intake temperature codes, fixing them before attempting to fix P048C is must. Also look for the technical service bulletins to guide you through your diagnosis.  Akso check the factory diagram to ensure what wiring is supposed to be where in order to diagnose the issues with it.
• In order to check and test the solenoid, remove the solenoid connectors after the vehicle is cooled down. After that use a digital multimeter, while keeping the ignition on to check the solenoid power. It usually should be 12 V. In case the readings exceed, then there is an open circuit. Also, check the ground portion of the circuit and the power side of the circuit.