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Engine-Codes – Generic – U0159

U0159 Code - Lost Communication With Parking Assist Control Module 'A'

Quick Answer

The U0159 diagnostic trouble code (DTC) indicates that there is a communication failure between the vehicle's engine control module (ECM) and the parking assist control module 'A'. Common causes include Faulty wiring or connectors between ECM and parking assist control module 'A', Defective parking assist control module 'A', Issues with the ECM itself. 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
U0159 indicates Lost Communication With Parking Assist Control Module 'A'.
Common causes
Common causes include Faulty wiring or connectors between ECM and parking assist control module 'A', Defective parking assist control module 'A', Issues with the ECM itself.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code U0159 Description

The U0159 diagnostic trouble code (DTC) indicates that there is a communication failure between the vehicle's engine control module (ECM) and the parking assist control module 'A'. This means that the ECM is unable to exchange data with the parking assist module, which can potentially impact the vehicle's parking assist system functionality. The parking assist control module 'A' is responsible for coordinating the sensors and other components of the parking assist system, which helps drivers navigate tight parking spaces by providing alerts and sometimes even automated assistance in steering the vehicle into a parking spot.

OBDII Code U0159 - Lost Communication With Parking Assist Control Module 'A'
U0159 Code - Lost Communication With Parking Assist Control Module 'A'

Common Causes of U0159

  1. Faulty wiring or connectors between ECM and parking assist control module 'A'
  2. Defective parking assist control module 'A'
  3. Issues with the ECM itself
  4. Software or firmware glitches
  5. Electrical interference or communication bus errors

Symptoms of U0159

  1. Parking assist system not working properly or disabled
  2. Lack of parking assistance alerts or warnings
  3. Inaccurate readings from parking sensors
  4. Loss of power or decreased performance

How to Fix U0159

  1. Begin by conducting a thorough inspection of the wiring and connectors between the ECM and the parking assist control module 'A'. Look for any signs of damage, corrosion, or loose connections, and repair or replace as needed.
  2. Test the parking assist control module 'A' for functionality and replace it if it is found to be defective.
  3. Check for any software or firmware updates for the ECM and parking assist control module 'A', and perform the updates if available.
  4. Clear the DTC from the vehicle's memory using a diagnostic scan tool and test the parking assist system to ensure that the communication issue has been resolved.

Cost to Fix U0159

The cost of repairing the U0159 code can vary depending on the specific cause of the communication failure and the labor rates at the auto repair shop. In general, the parts required for this repair, such as wiring, connectors, or a new parking assist control module 'A', can range from $100 to $500. Labor costs typically range from $100 to $300, depending on the shop's hourly rate and the complexity of the repair. Additional costs may apply if software updates or diagnostic tests are needed. It is recommended to obtain a quote from a reputable auto repair shop to get a more accurate estimate for the repair.

What does this mean?

Tech Notes for U0159





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Code U0159 Information for Specific Makes

  • U0159 Buick — Lost Communication With Parking Assist Control Module
  • U0159 Cadillac — Lost Communication With Parking Assist Control Module
  • U0159 Chevrolet — Lost Communication With Parking Assist Control Module
  • U0159 Chrysler — Lost Communication With Parking Assist Control Module
  • U0159 Dodge — Lost Communication With Parking Assist Control Module
  • U0159 Ford — Lost Communication With Parking Assist Control Module 'A'
  • U0159 GMC — Lost Communication With Parking Assist Control Module
  • U0159 Jeep — Lost Communication With Parking Assist Control Module
  • U0159 Lincoln — Lost Communication With Parking Assist Control Module 'A'
  • U0159 Mercury — Lost Communication With Parking Assist Control Module 'A'
  • U0159 RAM — Lost Communication With Parking Assist Control Module
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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