U142C Dodge Code - implausible Data Received From Exhaust Valve 2
Quick Answer
The purpose of the Active Exhaust Valves are to reduce exhaust noise in order to meet pass-by noise regulations. Common causes include Faulty Active Exhaust Valve 2 Actuator, Active Exhaust Valve 2 Actuator harness is open or shorted, Active Exhaust Valve 2 Actuator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- U142C Dodge indicates implausible Data Received From Exhaust Valve 2.
- Common causes
- Common causes include Faulty Active Exhaust Valve 2 Actuator, Active Exhaust Valve 2 Actuator harness is open or shorted, Active Exhaust Valve 2 Actuator circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code U142C Dodge Description
The Active Exhaust Valve actuators communicate with the Powertrain Control Module (PCM) over a LIN Bus circuit. The Active Exhaust Valve actuator 1 (left) and Active Exhaust Valve actuator 2 (right) each has a unique part number/internal ID. The PCM can identify each actuator location by this unique ID. The PCM sends a position command to the Active Exhaust Valve actuators based on engine torque, rpm and vehicle speed. The Active Exhaust Valve actuators move the butterfly valves to the commanded position. An internal Hall Effect sensor counts the pulses and determines valve position. The valve actuators are calibrated at every Key-ON event. The PCM sends full open and full closed commands and checks the actual position against the commanded position. If for any reason the calibration is unsuccessful, the actuators are self-diagnosing and report fault flags to the PCM over the LIN Bus.
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. If an actuator is not attached to the mechanical valve, or the transmission spring is broken or missing, the actuator will continue to rotate indefinitely and set a fault. Also, if the mechanical valve is stuck and will not move, a fault will set.
What are the Possible Causes of the DTC U142C Dodge?
- Faulty Active Exhaust Valve 2 Actuator
- Active Exhaust Valve 2 Actuator harness is open or shorted
- Active Exhaust Valve 2 Actuator circuit poor electrical connection
How to Fix the DTC U142C Dodge?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U142C Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the U142C Dodge code?
Need more information on how to fix the U142C Dodge code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U142C Dodge code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U142C Dodge Code
1. What does the OBDII code U142C mean on a Dodge?
Code U142C indicates "Implausible Data Received From Exhaust Valve 2," meaning the vehicle's control module is getting inconsistent or unexpected data from the exhaust valve 2 circuit.
2. What are the common symptoms of code U142C on a Dodge?
Symptoms may include the check engine light turning on, reduced engine performance, erratic idling, or noticeable issues with exhaust flow.
3. What causes the U142C code to appear on a Dodge?
Common causes include faulty exhaust valve actuators, wiring or connector issues in the exhaust valve circuit, software glitches, or a malfunctioning powertrain control module (PCM).
4. Can I drive my Dodge with the U142C code?
While it may be possible to drive, doing so could result in poor performance, increased emissions, or further damage to the exhaust system. It’s best to address the issue promptly.
5. How do I diagnose the U142C code on my Dodge?
Start by inspecting the wiring and connectors for damage or corrosion. Use an OBDII scanner to verify the code and test the exhaust valve actuator for proper function.
6. How can I fix the U142C code on my Dodge?
Repairs may include replacing the faulty exhaust valve actuator, repairing damaged wiring or connectors, or updating the PCM software if applicable.
7. Is a software update necessary for resolving code U142C?
In some cases, a PCM software update may be required if the issue stems from outdated programming. Check with a Dodge dealership for any available updates.
8. How much does it cost to fix a U142C code on a Dodge?
Costs vary depending on the root cause. Replacing an exhaust valve actuator may cost $200–$500, while wiring repairs or software updates could be less expensive.
9. Can a dirty or clogged exhaust system trigger code U142C?
While rare, excessive exhaust system buildup could strain the exhaust valve actuator. However, the issue is more commonly electrical or mechanical.
10. Does clearing the U142C code with a scanner fix the problem?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
Discuss the causes and fixes for U142C Dodge OBDII Code
Code U142C Dodge comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
