[SOLVED] Fixing U142B: Exhaust Valve 1 Data Error

The automobile fault code U142B indicates a problem with the Active Exhaust Valve 1 Actuator, which can cause the engine light to turn on.

The cause of this fault code could be a faulty actuator or a poor electrical connection in the circuit. It is important to visually inspect the wiring harness and connectors for any damage or corrosion.

The repair time for this fault code is estimated to be around 1.0 hour. To interpret the fault code, it is recommended to check the “Possible Causes” listed above and look for any broken or bent components.

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

If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be due to the u142b fault code. Here are the symptoms to look out for:

  • The automobile fault code u142b has the following symptoms: Engine Light ON, Service Engine Soon Warning Light.

The automobile fault code u142b can be caused by a faulty actuator or poor electrical connection.

  • The automobile fault code u142b can be caused by a faulty Active Exhaust Valve 1 Actuator.
  • It can also be caused by an open or shorted Active Exhaust Valve 1 Actuator harness.
  • Additionally, a poor electrical connection in the Active Exhaust Valve 1 Actuator circuit can also trigger this fault code.

Below are some possible fixes for the automobile fault code u142b, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code u142b, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code U142B has an estimated repair time of 1.0 hour.

The cost of fixing this fault code is influenced by the repair time.

Most auto repair shops charge between $75 and $150 per hour for their services.

Therefore, the fixing cost of U142B will range between $75 and $150, depending on the repair time required. These factors should be considered when estimating the cost of fixing the U142B fault code.

The U142B code indicates a problem with the Active Exhaust Valves. These valves are responsible for reducing exhaust noise to meet regulations. The valves consist of mechanical butterfly valves and smart actuators.

The actuators communicate with the Powertrain Control Module over a LIN Bus circuit. The PCM sends a position command to the actuators based on engine torque, rpm, and vehicle speed.

If the valve position doesn’t match a predetermined calibration, a performance code is set and the valves will default to the full open position. A fault will also set if the mechanical valve is stuck and will not move.

What are the possible causes of the u142b automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u142b fault code. This code is usually caused by a faulty Active Exhaust Valve 1 Actuator, an open or shorted harness, or a poor electrical connection in the circuit. To fix this issue, you should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How can I visually inspect the related wiring harness and connectors to fix the u142b fault code?

If you’re experiencing the u142b fault code, which is indicated by the Engine Light ON or Service Engine Soon Warning Light, you may have a faulty Active Exhaust Valve 1 Actuator or an issue with the related wiring harness and connectors. To fix this issue, you should visually inspect the wiring harness and connectors for any damage or poor electrical connections. Check for broken, bent, pushed out, or corroded connector’s pins. This will help you identify any issues and determine the best course of action to resolve the problem.

What are the signs of damaged components that I should look for when fixing the u142b fault code?

If you’re dealing with the u142b fault code, you may notice that the engine light is on or the service engine soon warning light is illuminated. This could be due to a faulty Active Exhaust Valve 1 Actuator, an open or shorted harness, or a poor electrical connection in the circuit. To fix the issue, start by checking the possible causes listed above. Inspect the wiring harness and connectors for any damage, such as broken, bent, pushed out, or corroded pins.

u142b error fault code explained

If your engine light is on, it could be due to a faulty Active Exhaust Valve 1 Actuator or related wiring issues. Visually inspect the wiring harness and connectors for damage and check for broken or corroded pins.

Take action to fix the issue as soon as possible.

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