U183C GMC Code - Auxiliary Transmission Fluid Pump Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus
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
- U183C GMC indicates Auxiliary Transmission Fluid Pump Control Module Lost Communication With Hybrid/EV Powertrain Control Module 2 On Powertrain Expansion Communication Bus.
- 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 U183C GMC Description
What are the Possible Causes of the DTC U183C GMC?
- 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 U183C GMC?
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 U183C GMC 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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Frequently Asked Questions about U183C GMC Code
1. What are the common symptoms of OBDII code U183C in a GMC vehicle?
- Common symptoms include transmission issues, such as harsh shifting, slipping gears, or hesitation during acceleration.
2. What can cause the OBDII code U183C in a GMC vehicle?
- The code U183C is typically caused by a communication error between the Auxiliary Transmission Fluid Pump Control Module and the Hybrid/EV Powertrain Control Module 2 on the Powertrain Expansion Communication Bus.
3. How serious is the OBDII code U183C in a GMC vehicle?
- The code U183C can affect the proper operation of the transmission system and should be addressed promptly to prevent further damage or performance issues.
4. How can I diagnose the OBDII code U183C in my GMC vehicle?
- Diagnosing the code U183C may require using a professional OBDII scanner to read the code and investigate the communication error between the modules.
5. Can I still drive my GMC vehicle with the OBDII code U183C present?
- It is not recommended to drive the vehicle with the U183C code present, as it can lead to potential transmission problems and affect overall drivability.
6. How can I repair the OBDII code U183C in my GMC vehicle?
- Repairing the U183C code may involve checking and repairing any wiring or connection issues between the modules, resetting the codes, or replacing faulty modules if necessary.
7. Will resetting the OBDII code U183C in my GMC vehicle make it go away permanently?
- Resetting the code may temporarily clear the error, but if the underlying issue causing the code is not addressed, it is likely to reappear.
8. Can a DIY enthusiast fix the OBDII code U183C in a GMC vehicle?
- Depending on the skill level and experience, some DIY enthusiasts may be able to diagnose and repair the U183C code. However, complex issues may require professional assistance.
9. How much does it typically cost to repair the OBDII code U183C in a GMC vehicle?
- The cost of repairing the U183C code can vary depending on the specific cause of the issue, parts needed for replacement, and labor charges at the repair shop.
10. Is it possible to prevent the OBDII code U183C from occurring in my GMC vehicle?
- Regular maintenance, including checking and maintaining the transmission system, can help prevent issues that may trigger the U183C code.
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