U1827 Code - Lost Communication With Steering Angle Sensor Module On Powertrain Expansion CAN Bus
Quick Answer
Devices connected to the powertrain high-speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Steering Angle Sensor Module, Steering Angle Sensor Module harness is open or shorted, Steering Angle 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
- U1827 indicates Lost Communication With Steering Angle Sensor Module On Powertrain Expansion CAN Bus.
- Common causes
- Common causes include Faulty Steering Angle Sensor Module, Steering Angle Sensor Module harness is open or shorted, Steering Angle 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 U1827 Description
The Diagnostic Trouble Code (DTC) will set when a supervised periodic message that includes the transmitter device availability has not been received.
What are the Possible Causes of the DTC U1827?
- Faulty Steering Angle Sensor Module
- Steering Angle Sensor Module harness is open or shorted
- Steering Angle Sensor Module circuit poor electrical connection
How to Fix the DTC U1827?
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 U1827 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 U1827 code?
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Need Help with the Code?
Get the U1827 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- U1827 Buick — Lost Communication With Steering Angle Sensor Module On Powertrain Expansion CAN Bus
- U1827 Cadillac — Lost Communication With Steering Angle Sensor Module On Powertrain Expansion CAN Bus
- U1827 Chevrolet — Lost Communication With Steering Angle Sensor Module On Powertrain Expansion CAN Bus
- U1827 GMC — Lost Communication With Steering Angle Sensor Module On Powertrain Expansion CAN Bus
Frequently Asked Questions about U1827 Code
1. What are the common symptoms of OBDII code U1827?
The common symptoms of OBDII code U1827 include issues with the electronic power steering, warning lights on the dashboard (such as the ABS or stability control light), and potential loss of power steering assistance.
2. What causes the OBDII code U1827 to trigger?
The U1827 code is triggered when the engine control module (ECM) detects a loss of communication with the steering angle sensor module on the powertrain expansion CAN bus. This can be caused by wiring issues, a faulty module, or a communication network problem.
3. How serious is the U1827 code?
The U1827 code should be addressed promptly as it can affect the proper functioning of the electronic power steering system. Ignoring this code may lead to safety concerns and difficulties in steering the vehicle.
4. How can I diagnose the U1827 code?
Diagnosing the U1827 code usually involves checking the wiring and connections related to the steering angle sensor module, testing the module itself, and verifying the communication on the CAN bus using a diagnostic scan tool.
5. Can I still drive my vehicle with the U1827 code present?
It is not recommended to drive your vehicle with the U1827 code present, especially if you are experiencing issues with the power steering system. Continued driving may pose safety risks and potentially cause further damage.
6. What are some common repair tips for fixing the U1827 code?
Common repair tips for the U1827 code include checking and repairing any damaged wiring, replacing the steering angle sensor module if necessary, and ensuring proper communication on the CAN bus by addressing network issues.
7. Will resetting the trouble codes make the U1827 code go away?
Resetting the trouble codes may temporarily clear the U1827 code, but if the underlying issue causing the code is not addressed, it is likely to reappear once the ECM detects the communication problem again.
8. How much does it typically cost to repair the U1827 code?
The cost of repairing the U1827 code can vary depending on the cause of the issue, the extent of repairs needed, and labor rates. It is recommended to consult a professional mechanic for an accurate diagnosis and cost estimate.
9. Can I fix the U1827 code myself?
While some DIY enthusiasts may attempt to diagnose and fix the U1827 code themselves, it is recommended to seek assistance from a qualified mechanic or technician due to the complexity of the electronic systems involved.
10. Is the U1827 code specific to certain vehicle makes and models?
The U1827 code can be found in various vehicle makes and models equipped with an electronic power steering system and CAN bus communication network. It is important to consult the specific vehicle's service manual for accurate diagnostic and repair information.
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