U0136 Buick Code - Lost Communication With Rear Differential Control Module
Quick Answer
Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Rear Differential Control Module, Rear Differential Control Module harness is open or shorted, Rear Differential Control 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
- U0136 Buick indicates Lost Communication With Rear Differential Control Module.
- Common causes
- Common causes include Faulty Rear Differential Control Module, Rear Differential Control Module harness is open or shorted, Rear Differential Control 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 U0136 Buick Description
What are the Possible Causes of the DTC U0136 Buick?
- Faulty Rear Differential Control Module
- Rear Differential Control Module harness is open or shorted
- Rear Differential Control Module circuit poor electrical connection
How to Fix the DTC U0136 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 U0136 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.
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Frequently Asked Questions about U0136 Buick Code
1. What are the common symptoms of OBDII code U0136 in a Buick related to lost communication with the rear differential control module?
- Common symptoms include traction control and stability control warning lights illuminated on the dashboard, erratic shifting behavior, and potential loss of traction control functionality.
2. What are some possible causes of the U0136 code indicating a communication issue with the rear differential control module in a Buick?
- Likely causes include a faulty rear differential control module, damaged wiring or connectors, a blown fuse related to the module, or software issues within the vehicle's control system.
3. How can I diagnose the U0136 code in my Buick to determine the exact cause of the communication loss with the rear differential control module?
- Diagnosis involves using an OBDII scanner to retrieve the specific code, inspecting the wiring and connectors for damage, checking the fuse related to the module, and potentially performing a software update or reset.
4. Is it safe to continue driving my Buick with the U0136 code indicating lost communication with the rear differential control module?
- It is not recommended to drive the vehicle extensively with this code present, as it may affect the stability and control systems of the car. It is best to address the issue promptly.
5. Can I repair the U0136 code related to the rear differential control module communication problem in my Buick myself, or should I seek professional help?
- Depending on your automotive repair experience, you may be able to address the issue yourself by checking wiring and connectors. However, for more complex issues like module replacement or software updates, professional help is recommended.
6. How much does it typically cost to repair the U0136 code indicating lost communication with the rear differential control module in a Buick?
- Repair costs can vary widely depending on the exact cause of the issue. Simple fixes like replacing a blown fuse may be relatively inexpensive, while module replacement or extensive wiring repairs can be more costly.
7. Are there any preventative measures I can take to avoid encountering the U0136 code in my Buick in the future?
- Regularly checking the condition of wiring and connectors related to the rear differential control module, as well as ensuring proper maintenance of the vehicle's electrical system, can help prevent communication issues.
8. Will resetting the OBDII code U0136 in my Buick temporarily resolve the communication problem with the rear differential control module?
- Resetting the code may temporarily clear the warning lights, but if the underlying issue causing the communication loss is not addressed, the code is likely to reappear.
9. How long does it typically take to repair the U0136 code associated with lost communication with the rear differential control module in a Buick?
- The repair time can vary depending on the complexity of the issue. Simple fixes may be completed within an hour, while more involved repairs could take several hours or longer.
10. Can the U0136 code indicating lost communication with the rear differential control module affect the overall performance or safety of my Buick?
- Yes, this code can impact the vehicle's stability control and traction control systems, potentially affecting performance and safety. It is important to address the issue promptly to ensure safe operation of the vehicle.
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