[SOLVED] P147B Code: Fixing Particulate Matter Sensor Shunt Circuit High Current

The automobile fault code P147B indicates a problem with the Exhaust Particulate Matter Sensor. This can be identified by the Engine Light being ON or the Service Engine Soon Warning Light appearing. The cause of this fault code could be a faulty sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit.

To fix this issue, it is recommended to visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look for any broken, bent, pushed out, or corroded pins in the connectors. The repair time for this issue is estimated to be around 1.0.

It is important to address this fault code promptly to ensure optimal performance and avoid further damage to the vehicle.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

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When the p147b fault code appears, you may notice the Engine Light ON or the Service Engine Soon Warning Light illuminated.

  • The symptoms of the automobile fault code P147B include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p147b can be caused by a faulty exhaust particulate matter sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit.

  • The fault code P147B can be caused by a faulty Exhaust Particulate Matter Sensor, an open or shorted harness for the Exhaust Particulate Matter Sensor, or a poor electrical connection in the Exhaust Particulate Matter Sensor circuit.

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To fix the automobile fault code p147b, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P147B, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the diagnosis and fixing cost of the automobile fault code p147b are the estimated repair time and the hourly rate charged by auto repair shops.

The estimated repair time for this fault code is 1.0 hour. Auto repair shops typically charge between $75 and $150 per hour for their services.

These factors will determine the overall cost of diagnosing and fixing the p147b fault code.

The P147B fault code refers to a problem with the Particulate Matter (PM) sensor in the diesel exhaust system. This sensor is responsible for monitoring the amount of soot in the exhaust gas.

It has a ceramic element with comb-shaped electrodes and a Sensor Control Unit (SCU) for calibration. The PM sensor works by measuring the electrical conductivity of the diesel particulate.

As the exhaust gas passes over the sensor, soot is absorbed between the electrodes, creating a conductive path.

This path generates a current based on the applied voltage. The sensor performs a regeneration process to clean off the soot before taking measurements. When the PM sensor control unit detects a fault in the sensor circuitry, the P147B fault code is triggered.

This code indicates a shunt circuit high current, meaning there is an issue with the sensor’s electrical circuit.

It is important to address this fault to ensure accurate readings and proper functioning of the Diesel Particulate Filter (DPF).

What are the possible causes of the automobile fault code P147B?

If you see the engine light or service engine soon warning light on, the fault code P147B could be the culprit. This code is often caused by a faulty exhaust particulate matter sensor, an open or shorted sensor harness, or a poor electrical connection in the sensor circuit. To fix the issue, visually inspect the wiring harness and connectors, checking for any damage or corrosion. Also, be on the lookout for broken, bent, pushed out, or corroded pins in the connectors.

How can I visually inspect the wiring harness and connectors to fix the P147B fault code?

To fix the P147B fault code, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This can help identify if the issue lies with a faulty exhaust particulate matter sensor, an open or shorted harness, or a poor electrical connection in the sensor circuit. Don’t forget to check the “Possible Causes” listed above for further troubleshooting.

What should I look for when checking for damaged components and connector pins to resolve the P147B fault code?

When resolving the P147B fault code, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This can help identify any issues with the Exhaust Particulate Matter Sensor or its circuit. By thoroughly examining these areas, you can address any open or shorted circuits and poor electrical connections, ultimately resolving the engine light or service engine soon warning light.

p147b error fault code explained

If your engine light is on, it could be due to a faulty Exhaust Particulate Matter Sensor or issues with the sensor’s harness or circuit connection.

To fix this, visually inspect the wiring harness and connectors for any damage.

Check for broken, bent, pushed out, or corroded pins on the connectors.

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