U1173 – SCP (J1850) Invalid or Missing Data for Remote Button Control

The ODBII code U1173 SCP (J1850) indicates that there is invalid or missing data related to the remote button control system, which may affect the functionality of remote features in the vehicle.

The severity of ODBII code U1173 is generally considered moderate.

Common Causes For: U1172 U1172: “Control Module Communication Fault”

• Faulty remote button control module
• Damaged wiring or connectors
• Poor ground connection
• Malfunctioning vehicle communication network
• Interference from other electronic devices
• Software or firmware issues in the control module
• Low battery voltage or weak battery
• Corroded or loose terminals

Common misdiagnosis for U1173 SCP (J1850) Invalid or Missing Data for Remote Button Control

• 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
• Incorrectly programmed key fob
• Issues with the vehicle’s central locking system
• Faulty antenna or receiver for remote signals

Common Troubleshooting Steps

When dealing with OBD-II code U1173 (SCP – J1850) which indicates “Invalid or Missing Data for Remote Button Control,” there are several common troubleshooting steps you can follow to diagnose and potentially resolve the issue. Here’s a structured approach:

• Check for Additional Codes: Use an OBD-II scanner to check for any other trouble codes that may be present. Addressing related codes can help in diagnosing the issue more effectively.
• Inspect the Remote Control: **Battery Check: Ensure that the battery in the remote control is functioning properly. Replace it if necessary.
• **Functionality Test: Test the remote control to see if it operates correctly. If it doesn’t work, the remote may be faulty.
• Examine the Wiring and Connectors: **Visual Inspection: Check the wiring and connectors related to the remote button control system for any signs of damage, corrosion, or loose connections.
• **Connector Integrity: Ensure that all connectors are securely attached and free from dirt or moisture.
• Check the Body Control Module (BCM): **Functionality: The BCM is responsible for processing signals from the remote control. Ensure that the BCM is functioning correctly.
• **Software Updates: Check if there are any software updates available for the BCM that may address known issues.
• Test the Communication Network: **Network Integrity: Use a scan tool to check the communication network (SCP/J1850) for any faults. Look for issues in the data bus that may affect communication.
• **Signal Testing: If possible, test the signal from the remote control to the BCM to ensure it is being received correctly.
• Inspect for Interference: **Environmental Factors: Check for any potential sources of interference that could affect the remote control signal, such as other electronic devices or physical obstructions.
• Perform a Reset: **Clear Codes: Clear the trouble codes using the OBD-II scanner and see if the code returns after a test drive.
• **Battery Disconnect: Disconnect the vehicle battery for a few minutes to reset the vehicle’s electronic systems, then reconnect and test again.
• Consult Technical Service Bulletins (TSBs): Look for any TSBs related to the U1173 code for your specific vehicle make and model. Manufacturers may have issued guidance or fixes for known issues.
• 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 more complex issues.Conclusion By following these troubleshooting steps, you can systematically identify and resolve the issue related to the U1173 code. Always ensure safety precautions are taken when working on vehicle electronics, and consult a professional if you are unsure about any steps.