WOMS
U code network Medium severity

U1172 SCP (J1850) Invalid or Missing Data for Remote Button Control

The OBD2 code U1172 SCP (J1850) Invalid or Missing Data for Remote Button Control indicates that the vehicle's communication network is not receiving valid data from the remote button control system, which may affect...

Definition

The OBD2 code U1172 SCP (J1850) Invalid or Missing Data for Remote Button Control indicates that the vehicle's communication network is not receiving valid data from the remote button control system, which may affect functions like keyless entry or remote start

Common causes

  • Faulty remote button control module
  • Wiring issues or damaged connectors
  • Poor ground connections
  • Malfunctioning body control module (BCM)
  • Interference from other electronic devices
  • Software or firmware issues in the vehicle's control modules
  • Low battery voltage or weak battery
  • Corroded or loose terminals in the wiring harness

Common misdiagnoses

  • Faulty remote key fob
  • Weak or dead battery in the key fob
  • Malfunctioning body control module (BCM)
  • Wiring issues or shorts in the remote control circuit
  • Software glitches in the vehicle's electronic systems
  • Faulty receiver module for remote signals
  • Incorrectly programmed key fob
  • Issues with the vehicle's communication network (CAN bus)

Troubleshooting steps

  1. 1. Check for Other Codes

    Use an OBD-II scanner to check for any additional trouble codes. Sometimes, related codes can provide more context for the issue

  2. 2. Inspect the Remote Control

    Battery Check: Ensure that the battery in the remote key fob is functioning properly. Replace it if necessary

  3. 3. Functionality Test

    Test the remote control to see if it operates correctly. If it doesn’t work, the remote may be faulty

  4. 4. Examine the Vehicle’s Wiring and Connectors

    Visual Inspection: Look for any damaged, corroded, or loose wiring and connectors related to the remote control system

  5. 5. Connector Integrity

    Ensure that all connectors are securely attached and free of corrosion

  6. 6. Check the Body Control Module (BCM)

    The BCM is often responsible for interpreting signals from the remote control. Inspect the BCM for any signs of damage or malfunction

  7. 7. If possible, perform a reset or reprogramming of the BCM according to the manufacturer’s specifications

  8. 8. Test the Communication Network

    Use a scan tool to monitor the communication between the BCM and other modules. Look for any communication errors or interruptions

  9. 9. Check for proper voltage and ground at the BCM and related components

  10. 10. Inspect for Interference

    Ensure that there are no electronic devices or other sources of interference that could be affecting the remote control signal

  11. 11. Perform a System Reset

    Disconnect the vehicle’s battery for a few minutes to reset the vehicle’s electronic systems. Reconnect and see if the code reappears

  12. 12. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the U1172 code for your specific vehicle make and model. Manufacturers may have known fixes or updates

  13. 13. Professional Diagnosis

    If the issue persists after performing the above steps, consider seeking help from a professional mechanic or dealership. They may have specialized tools and knowledge to diagnose the problem more effectively

  14. 14. Replace Faulty Components

    If a specific component (like the BCM or remote control) is identified as faulty during testing, replace it as necessary. By following these steps, you should be able to identify the root cause of the U1172 code and take appropriate action to resolve the issue