U0185 Code - Lost Communication With Antenna Control Module
Quick Answer
The U0185 diagnostic trouble code (DTC) signifies that the engine control module (ECM) has detected a communication failure with the Antenna Control Module (ACM) in the vehicle. Common causes include Loose or corroded wiring connections, Faulty antenna control module, Electrical interference. 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
- U0185 indicates Lost Communication With Antenna Control Module.
- Common causes
- Common causes include Loose or corroded wiring connections, Faulty antenna control module, Electrical interference.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code U0185 Description
The U0185 diagnostic trouble code (DTC) signifies that the engine control module (ECM) has detected a communication failure with the Antenna Control Module (ACM) in the vehicle. The ACM is responsible for managing the functions related to the vehicle's antenna, such as receiving signals for the radio, keyless entry system, and other wireless communication systems.
Common Causes of U0185
- Loose or corroded wiring connections
- Faulty antenna control module
- Electrical interference
- ECM software issue
- Water damage to the ACM or wiring
Symptoms of U0185
- Keyless entry system not working
- Radio not functioning properly
- Poor or no reception on radio
- Inability to lock or unlock doors remotely
- Warning light on the dashboard indicating a communication error
How to Fix U0185
- Perform a thorough inspection of the wiring connections and repair any loose or corroded connections.
- Check and test the Antenna Control Module for proper functionality and replace if necessary.
- Clear the DTC from the ECM and reset the system to establish communication with the ACM.
- Check for any electrical interference that may be affecting communication between the modules.
- Ensure proper sealing and protection of the ACM and wiring to prevent water damage in the future.
Cost to Fix U0185
The typical repair costs for addressing the U0185 code can vary depending on the specific cause of the issue. On average, the cost of parts for a new Antenna Control Module can range from $150 to $300, while labor costs can add another $100 to $200. The total repair cost, including parts and labor, may therefore fall within the range of $250 to $500. It's important to note that these are rough estimates, and actual costs can differ based on various factors. Additionally, diagnosis time and labor rates at auto repair shops can vary, so it's advisable to inquire about specific pricing based on your vehicle's make and model.
Need more information about the U0185 code?
Need more information on how to fix the U0185 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U0185 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U0185 Code
No Frequently Asked Questions about U0185 Code found.
Discuss the causes and fixes for U0185 OBDII Code
Code U0185 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.