U11EC Code - Lost Communication With Left D-Pillar Impact Acceleration Sensor
Quick Answer
When powered, the Occupant Restraint Controller (ORC) tries to establish and maintain communication with the Impact/Pressure Sensors and validates expected input from sensors. Common causes include Faulty Left D-Pillar Impact Acceleration Sensor, Left D-Pillar Impact Acceleration Sensor harness is open or shorted, Left D-Pillar Impact Acceleration Sensor 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
- U11EC indicates Lost Communication With Left D-Pillar Impact Acceleration Sensor.
- Common causes
- Common causes include Faulty Left D-Pillar Impact Acceleration Sensor, Left D-Pillar Impact Acceleration Sensor harness is open or shorted, Left D-Pillar Impact Acceleration Sensor 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 U11EC Description
What are the Possible Causes of the DTC U11EC?
- Faulty Left D-Pillar Impact Acceleration Sensor
- Left D-Pillar Impact Acceleration Sensor harness is open or shorted
- Left D-Pillar Impact Acceleration Sensor circuit poor electrical connection
- Faulty Occupant Restraint Controller (ORC)
How to Fix the DTC U11EC?
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 U11EC 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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Information for Specific Makes
- U11EC Chrysler — Lost Communication With Left D-Pillar Impact Acceleration Sensor
- U11EC Dodge — Lost Communication With Left D-Pillar Impact Acceleration Sensor
- U11EC Fiat — Lost Communication With Left D-Pillar Impact Acceleration Sensor
- U11EC Jeep — Lost Communication With Left D-Pillar Impact Acceleration Sensor
- U11EC RAM — Lost Communication With Left D-Pillar Impact Acceleration Sensor
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about U11EC Code
What does the OBDII code U11EC indicate?
The OBDII code U11EC indicates a lost communication with the left D-pillar impact acceleration sensor, which is part of the vehicle's airbag system.
What are the common symptoms associated with the U11EC code?
Common symptoms may include airbag warning lights illuminated on the dashboard, potential issues with airbag deployment, and diagnostic trouble codes related to the airbag system.
What could cause the U11EC code to trigger?
Causes can include a faulty left D-pillar impact acceleration sensor, damaged wiring or connectors, or issues with the vehicle's main control module.
How can I diagnose the U11EC code?
To diagnose the U11EC code, you can use an OBDII scanner to confirm the code, inspect the wiring and connectors associated with the left D-pillar sensor, and test the sensor itself for proper functionality.
What should I check first if I encounter the U11EC code?
Start by inspecting the wiring and connectors for any visible damage, corrosion, or loose connections. Ensure that the sensor is properly connected and functioning.
Can I drive my vehicle with the U11EC code?
While you can technically drive the vehicle, it is not recommended as the airbag system may not function properly in the event of a collision, posing a safety risk.
What repairs might be needed for the U11EC code?
Repairs may involve replacing the left D-pillar impact acceleration sensor, repairing or replacing damaged wiring and connectors, or addressing issues with the vehicle’s main control module.
Is it necessary to reset the OBDII system after repairs for U11EC?
Yes, after completing the repairs, it is important to clear the trouble codes and reset the OBDII system to ensure that the issue has been resolved and to monitor for any recurrence.
Can I fix the U11EC code myself, or should I seek professional help?
If you have experience with automotive repairs and electrical systems, you may be able to troubleshoot the issue yourself. However, if you're unsure, it's best to seek professional help to ensure safety and proper repairs.
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