U1146 Dodge Code - Lost Communication With External Memory
Quick Answer
The U1146 code for Dodge vehicles indicates that there is a loss of communication with the external memory. Common causes include Faulty external memory module, Corrosion or damage to wiring/connectors leading to the external memory, Issues with the vehicle's onboard computer system. 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
- U1146 Dodge indicates Lost Communication With External Memory.
- Common causes
- Common causes include Faulty external memory module, Corrosion or damage to wiring/connectors leading to the external memory, Issues with the vehicle's onboard computer system.
- 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.
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Code U1146 Dodge Description
The U1146 code for Dodge vehicles indicates that there is a loss of communication with the external memory. This means that the vehicle's onboard computer system is unable to retrieve or store data from an external memory source, which can impact the overall performance and functionality of various systems within the vehicle. This issue can lead to problems with data transfer, storage, and retrieval, affecting critical functions such as engine timing, fuel management, transmission operation, and more.
Common Causes of U1146 Dodge
- Faulty external memory module
- Corrosion or damage to wiring/connectors leading to the external memory
- Issues with the vehicle's onboard computer system
- Electrical interference or signal disruption
- Software glitches or programming errors
Symptoms of U1146 Dodge
- Check engine light is illuminated on the dashboard
- Erratic or rough engine performance
- Issues with transmission shifting
- Loss of power or acceleration
- Difficulty starting the vehicle
How to Fix U1146 Dodge
- Diagnose the specific cause of the communication loss using a diagnostic scanner
- Inspect and test the external memory module for faults or damage
- Check wiring and connectors for corrosion, damage, or loose connections
- Repair or replace any faulty components identified during the diagnostic process
- Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved
Cost to Fix U1146 Dodge
The cost of repairing a U1146 code on a Dodge vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $80 to $150 per hour. Overall, the total repair cost for addressing a Lost Communication With External Memory code can range from $200 to $600. It's important to note that these estimates are rough averages and actual costs may vary based on the location and specific circumstances of the repair.
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Frequently Asked Questions about U1146 Dodge Code
1. What does the OBDII code U1146 mean on a Dodge vehicle?
The U1146 code indicates "Lost Communication With External Memory," meaning the vehicle’s control modules are having trouble communicating with an external memory module.
2. What are the common symptoms of the U1146 code in a Dodge?
Symptoms may include an illuminated check engine light, erratic electrical system behavior, loss of certain vehicle functions, or failure to start.
3. What causes the U1146 code to appear?
Common causes include wiring issues, faulty external memory modules, problems with the CAN bus network, or a malfunctioning control module.
4. Can a faulty battery cause the U1146 code in a Dodge?
Yes, a weak or failing battery can disrupt communication between modules, potentially triggering the U1146 code.
5. How can I diagnose the U1146 code on my Dodge?
Start by checking the wiring and connectors for damage or corrosion, inspecting the external memory module, and testing the CAN bus network for continuity or short circuits.
6. Is it safe to drive with the U1146 code on a Dodge?
It depends on the severity of the issue. While the vehicle may still operate, certain systems could malfunction, potentially compromising safety.
7. How do I fix the U1146 code on my Dodge?
Repairs may include replacing damaged wiring, cleaning or reconnecting corroded connectors, reprogramming the external memory module, or replacing a faulty module if necessary.
8. Can a software update fix the U1146 code on a Dodge?
In some cases, a software update from the manufacturer can resolve communication issues between modules and clear the code.
9. How much does it cost to repair the U1146 code on a Dodge?
Repair costs vary depending on the issue but typically range from $100 for basic wiring repairs to $500 or more if a module replacement is required.
10. Can disconnecting the battery clear the U1146 code on a Dodge?
Disconnecting the battery may temporarily clear the code, but if the underlying issue isn’t resolved, the code will likely return.
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