U151A GMC Code - Body Control Module Lost Communication With Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor Module On LIN Bus
Quick Answer
The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. Common causes include Faulty Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor Module, Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor Module harness is open or shorted, Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor 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
- U151A GMC indicates Body Control Module Lost Communication With Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor Module On LIN Bus.
- Common causes
- Common causes include Faulty Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor Module, Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor Module harness is open or shorted, Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor 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 U151A GMC Description
What are the Possible Causes of the DTC U151A GMC?
- Faulty Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor Module
- Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor Module harness is open or shorted
- Rain Sensor / Rain/Ambient Light Sensor Module / Rain Sensor Module circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC U151A 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 U151A 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.
Need more information about the U151A GMC code?
Need more information on how to fix the U151A GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U151A GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U151A GMC Code
1. What are the common symptoms of OBDII code U151A in a GMC vehicle?
- Common symptoms include malfunctioning rain sensor, ambient light sensor issues, loss of communication with the body control module, and potential dashboard warning lights.
2. What can cause the U151A code to appear in a GMC vehicle?
- This code usually indicates a communication problem between the body control module and the rain sensor module on the LIN bus, which can be caused by wiring issues, module failure, or software glitches.
3. How can I diagnose the U151A code in my GMC vehicle?
- Diagnosis typically involves checking the wiring connections between the body control module and the rain sensor module, testing for module functionality, and using a professional OBDII scanner to read the code.
4. Can I still drive my GMC vehicle with the U151A trouble code?
- It is not recommended to drive your vehicle with the U151A code present, as it may affect the proper functioning of important safety features like automatic wipers and ambient light adjustments.
5. Is it possible to repair the U151A code issue by myself?
- While basic checks like inspecting wiring connections can be done by DIY enthusiasts, resolving the U151A code often requires advanced diagnostic tools and expertise, so professional assistance is recommended.
6. How much does it cost to fix the U151A code in a GMC vehicle?
- The cost of fixing the U151A code can vary depending on the underlying issue, but it may involve replacing the rain sensor module, repairing wiring, or reprogramming modules, which can range from a few hundred to over a thousand dollars.
7. Can a faulty rain sensor cause the U151A trouble code to appear?
- Yes, a malfunctioning rain sensor or ambient light sensor can lead to the U151A code being triggered due to the loss of communication between the sensor module and the body control module.
8. Will resetting the trouble codes make the U151A code disappear permanently?
- Resetting the trouble codes may temporarily clear the U151A code, but if the root cause of the communication issue between the body control module and the rain sensor module is not addressed, the code is likely to reappear.
9. Are there any recalls related to the U151A code in GMC vehicles?
- It's recommended to check with authorized GMC dealerships or the National Highway Traffic Safety Administration (NHTSA) for any potential recalls related to the U151A code in your specific vehicle model.
10. How long does it typically take to repair the U151A code issue in a GMC vehicle?
- The repair time for the U151A code can vary based on the exact cause of the problem and the availability of replacement parts, but it may take a few hours to a full day for diagnosis and repair.
Discuss the causes and fixes for U151A GMC OBDII Code
Code U151A GMC 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.
