U2164 Buick Code - Lost Communication With Right Rear Door Module
Quick Answer
Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Right Rear Door Module (RRDM), Right Rear Door Module harness is open or shorted, Right Rear Door Module 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
- U2164 Buick indicates Lost Communication With Right Rear Door Module.
- Common causes
- Common causes include Faulty Right Rear Door Module (RRDM), Right Rear Door Module harness is open or shorted, Right Rear Door Module 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 U2164 Buick Description
What are the Possible Causes of the DTC U2164 Buick?
- Faulty Right Rear Door Module (RRDM)
- Right Rear Door Module harness is open or shorted
- Right Rear Door Module circuit poor electrical connection
How to Fix the DTC U2164 Buick?
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 U2164 Buick 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 U2164 Buick code?
Need more information on how to fix the U2164 Buick code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U2164 Buick code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U2164 Buick Code
Q: What does OBDII code U2164 mean on a Buick?
1. **A:** Code U2164 indicates a loss of communication with the Right Rear Door Module (RRDM), meaning the module is not sending or receiving signals as expected. 2.
Q: What are the common symptoms of code U2164 on a Buick?
**A:** Symptoms may include inoperative power windows or door locks on the right rear door, interior light issues, or warning messages on the dashboard. 3.
Q: What causes code U2164 on a Buick?
**A:** Common causes include a faulty Right Rear Door Module, damaged wiring or connectors, network communication issues, or a failing Body Control Module (BCM). 4.
Q: How can I diagnose code U2164 on my Buick?
**A:** Start by inspecting the wiring and connectors for damage or corrosion, check the module’s power and ground connections, and use a scan tool to test for communication with the RRDM. 5.
Q: Can a weak battery cause code U2164 on a Buick?
**A:** Yes, low voltage or a weak battery can disrupt communication between modules and trigger this code. 6.
Q: Is it safe to drive my Buick with code U2164 active?
**A:** While it may not affect drivability, the inoperative features like windows or locks could compromise convenience or safety. 7.
Q: How do you fix code U2164 on a Buick?
**A:** Repairs may include replacing or reprogramming the Right Rear Door Module, repairing damaged wiring or connectors, or addressing network communication faults. 8.
Q: Do I need to reprogram the Right Rear Door Module if I replace it?
**A:** Yes, most new replacement modules require programming with a compatible scan tool to function properly. 9.
Q: Can a blown fuse cause code U2164 on a Buick?
**A:** Yes, if the fuse for the Right Rear Door Module is blown, it can cause a loss of communication and trigger this code. 10.
Q: How much does it cost to fix code U2164 on a Buick?
**A:** Repair costs vary but may range from $100 to $500 depending on whether the issue involves wiring, module replacement, or reprogramming.
Discuss the causes and fixes for U2164 Buick OBDII Code
Code U2164 Buick 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.
