U179A 2018 Chevrolet Silverado Code - Lost Communication with Hybrid/EV Powertrain Control Module 2
Quick Answer
The serial data circuit is the means by which the devices in the vehicle communicate with each other. Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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
- U179A 2018 Chevrolet Silverado indicates Lost Communication with Hybrid/EV Powertrain Control Module 2.
- Common causes
- Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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 U179A 2018 Chevrolet Silverado Description
What are the Possible Causes of the DTC U179A 2018 Chevrolet Silverado?
- Faulty Hybrid/EV Powertrain Control Module 2
- Hybrid/EV Powertrain Control Module 2 harness is open or shorted
- Hybrid/EV Powertrain Control Module 2 circuit poor electrical connection
How to Fix the DTC U179A 2018 Chevrolet Silverado?
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 U179A 2018 Chevrolet Silverado 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.
Need more information about the U179A 2018 Chevrolet Silverado code?
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Frequently Asked Questions about U179A 2018 Chevrolet Silverado Code
1. What does the OBDII code U179A mean on a 2018 Chevrolet Silverado?
The code U179A indicates "Lost Communication with Hybrid/EV Powertrain Control Module 2," meaning the vehicle's communication network has lost contact with this specific module.
2. What are the common symptoms of code U179A in a 2018 Chevrolet Silverado?
Symptoms may include warning lights on the dashboard, reduced power mode, poor fuel efficiency, or the vehicle failing to start.
3. What causes the U179A code to trigger?
Common causes include faulty wiring or connectors, module failure, network communication errors, or a damaged Hybrid/EV Powertrain Control Module 2.
4. Can driving with the U179A code cause further damage?
Yes, ignoring this code can lead to poor vehicle performance, potential damage to the hybrid/EV system, or complete loss of powertrain functionality.
5. How do you diagnose the U179A code on a 2018 Chevrolet Silverado?
Diagnosis involves using a scan tool to check for related codes, inspecting wiring and connectors, and testing the communication network and the affected module.
6. Is the U179A code specific to hybrid or electric vehicles?
Yes, this code is specific to hybrid and electric vehicles as it relates to the Hybrid/EV Powertrain Control Module.
7. What repairs might fix the U179A code?
Repairs can include fixing or replacing damaged wiring, cleaning or reconnecting connectors, reprogramming the module, or replacing the Hybrid/EV Powertrain Control Module 2.
8. How much does it cost to repair the U179A code issue?
Repair costs can vary widely but may range from $100 for minor wiring fixes to over $1,000 if the module needs replacement.
9. Can a software update resolve the U179A code?
In some cases, a software update for the Hybrid/EV Powertrain Control Module 2 may resolve communication issues.
10. Is it safe to clear the U179A code without repairing the issue?
Clearing the code without addressing the root cause is not recommended, as the issue will likely return and could lead to further complications.
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