[SOLVED] P143B Code: Fixing Reductant Control System Information Signal Counter Error

If you’ve noticed that your engine light is on or you’ve received a service engine soon warning, it could be due to the automobile fault code P143B. This code indicates a problem with the reductant control system. To fix it, start by visually inspecting the wiring harness and connectors for any damage.

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

The repair time for this issue is estimated to be around 1.0. It’s important to address this fault code promptly to ensure your vehicle is running smoothly.

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

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p143b fault code.

  • The symptoms of the automobile fault code p143b include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p143b can be caused by a faulty Reductant Control System, among other possible causes.

  • The fault code P143B can be caused by a faulty reductant control system.

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To fix the automobile fault code p143b, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p143b, 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 cost of diagnosing and fixing the automobile fault code p143b 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 p143b fault code.

The P143B fault code is related to the Reductant Control System Information Signal Message Counter. This code is set when there is an incorrect message counter in the reductant control system.

Control modules in the vehicle monitor communication through serial data circuits. They exchange operating information and commands. Each module keeps track of transmit and receive error counters, which increase with detected errors and decrease with error-free messages.

When the Reductant Control System Information Signal Message Counter is incorrect, the P143B code is triggered.

This indicates a problem with the reductant control system’s message counter.

It is important to address this issue to ensure proper functioning of the vehicle’s emissions control system.

What is the possible cause of the engine light being on or the service engine soon warning light in relation to fault code P143b?

If you see the engine light or service engine soon warning light on and the fault code P143b is detected, it could be due to a faulty Reductant Control System. To fix this issue, start by checking the possible causes mentioned above. Then, visually inspect the wiring harness and connectors related to the system. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This thorough inspection will help identify and resolve the problem.

How can I fix the fault code P143b related to the faulty reductant control system?

If you’re seeing the Engine Light or Service Engine Soon Warning Light, it could be due to a faulty Reductant Control System, indicated by fault code P143b. To fix this issue, start by visually inspecting the wiring harness and connectors. Look out for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This will help you identify and address the possible causes of the problem.

What steps should I take to visually inspect the wiring harness and connectors for possible damage or issues related to fault code P143b?

To visually inspect the wiring harness and connectors for possible damage or issues related to fault code P143b, start by checking the “Possible Causes” listed above. Then, carefully examine the related wiring harness and connectors. Look for any signs of damage, such as broken or bent components, pushed out pins, or corrosion on the connector’s pins. This thorough inspection will help identify any issues and guide you towards the appropriate fix for the faulty Reductant Control System, indicated by the Engine Light or Service Engine Soon Warning Light being ON.

p143b error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the culprit could be a faulty Reductant Control System.

To fix it, check the possible causes mentioned above. Take a close look at the wiring harness and connectors for any damage.

Also, inspect the components for any signs of breakage, bending, or corrosion on the connector’s pins.

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