u1047 invalid or missing data for primary id

OBD2 Code: U1047

Description: Invalid or Missing Data for Primary ID

Definition: This code indicates that the vehicle’s control module has detected an issue with the communication network, specifically related to receiving invalid or missing data from a primary identification source. This can affect various systems within the vehicle that rely on accurate data exchange.

Invalid or missing data for primary id : Unknown severity

Common Causes

U1047 – Invalid or Missing Data for Primary ID

Common Causes:

• Malfunctioning OBD-II system
• Wiring issues in the primary ID circuit
• Faulty primary ID sensor
• Interference from other electronic devices

 

Common Misdiagnosis

Invalid or Missing Data for Primary ID
Common Misdiagnosis: Faulty wiring or connectors are often misdiagnosed as the cause, while the actual issue may be a malfunctioning control module.

 

Common Diagnostic Steps

OBD2 Code: U1047
Description: Invalid or Missing Data for Primary ID

Common Diagnostic Steps:

• Check for any stored trouble codes that may indicate a communication issue with the vehicle’s network.
• Inspect the wiring and connectors associated with the primary ID module for signs of damage, corrosion, or disconnection.
• Verify the power and ground connections to the module are intact and functioning properly.
• Use a scan tool to monitor data from the primary ID module and check for irregularities or missing information.
• If possible, update or reprogram the module software to ensure it is up-to-date.
• If all else fails, consider replacing the primary ID module if it is determined to be faulty after thorough testing.