U113F Chrysler Code - Lost Communication With Active Exhaust Valve 1
Quick Answer
The purpose of the Active Exhaust Valves is to reduce exhaust noise in order to comply with pass-by noise regulations. Common causes include Faulty Active Exhaust Valve Actuator, Active Exhaust Valve Actuator harness is open or shorted, Active Exhaust Valve 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
- U113F Chrysler indicates Lost Communication With Active Exhaust Valve 1.
- Common causes
- Common causes include Faulty Active Exhaust Valve Actuator, Active Exhaust Valve Actuator harness is open or shorted, Active Exhaust Valve 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 U113F Chrysler Description
The Active Exhaust Valve actuators communicate with the Powertrain Control Module (PCM) over a LIN Bus circuit. Each Active Exhaust Valve actuator, one for the left (actuator 1) and one for the right (actuator 2), has a unique part number/internal ID. The PCM can identify each actuator's location by this unique ID. Based on engine torque, rpm, and vehicle speed, the PCM sends position commands to the Active Exhaust Valve actuators. These actuators then move the butterfly valves to the commanded positions. An internal Hall Effect sensor counts the pulses to determine the 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 calibration is unsuccessful for any reason, the actuators self-diagnose and report fault flags to the PCM over the LIN Bus.
If the valve position does not match the 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 if the transmission spring is broken or missing, the actuator will continue to rotate indefinitely and set a fault. Additionally, if the mechanical valve is stuck and cannot move, a fault will be set.
What are the Possible Causes of the DTC U113F Chrysler?
- Faulty Active Exhaust Valve Actuator
- Active Exhaust Valve Actuator harness is open or shorted
- Active Exhaust Valve Actuator circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC U113F Chrysler?
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 U113F Chrysler 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.
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Frequently Asked Questions about U113F Chrysler Code
1. What are the common symptoms of OBDII code U113F in a Chrysler vehicle?
- Common symptoms include the active exhaust valve being stuck in one position, poor engine performance, and the Check Engine light illuminating.
2. What causes the OBDII code U113F to be triggered in a Chrysler vehicle?
- The code is usually triggered when there is a communication failure between the vehicle's ECM and the active exhaust valve actuator.
3. How can I diagnose the issue related to the U113F code in my Chrysler vehicle?
- Diagnosing the problem typically involves checking the wiring connections, inspecting the active exhaust valve actuator, and using a diagnostic scanner to interpret the code.
4. Can I continue driving my Chrysler with the U113F code present?
- It is not recommended to drive the vehicle with the U113F code active, as it can lead to further damage and potential engine issues.
5. How can I repair the U113F code in my Chrysler with the "Lost Communication With Active Exhaust Valve 1" error?
- Repairing the issue may involve repairing or replacing damaged wiring, replacing the active exhaust valve actuator, or reprogramming the ECM.
6. Are there any DIY tips for fixing the U113F code in a Chrysler?
- DIY tips include checking for loose or damaged wiring, ensuring proper connections, and consulting the vehicle's service manual for specific repair instructions.
7. Is it common for the U113F code to recur after repair in Chrysler vehicles?
- Recurrence of the U113F code can happen if the root cause of the communication issue is not properly addressed during the repair.
8. Can a mechanic reset the U113F code in my Chrysler without fixing the underlying issue?
- Resetting the code without addressing the underlying issue can lead to the problem persisting and potentially causing more damage to the vehicle.
9. How long does it typically take to repair the U113F code in a Chrysler?
- The repair time can vary depending on the exact cause of the communication failure, but it may take a few hours to a day to diagnose and fix the issue.
10. Is the U113F code specific to Chrysler vehicles, or can it occur in other car makes?
- While the U113F code is specific to Chrysler vehicles, similar communication errors with active exhaust systems can occur in other car makes as well.
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