U1451
CautionSCP (J1850) Invalid or Missing Data for Function Read Audible Warnings /Anti-Theft Module
Is it safe to drive?
🔵 Do not use this page as drive-clearance. Monitor the alert and arrange service if it returns.
What does U1451 mean?
U-code U1451 means "SCP (J1850) Invalid or Missing Data for Function Read Audible Warnings /Anti-Theft Module". It is a manufacturer-specific diagnostic trouble code (DTC) in the vehicle network (CAN/LIN bus). A fault has been detected in the scp (j1850) invalid or missing data for function read audible warnings /anti-theft module — the control module has logged this condition during self-diagnostics. This code can be monitored, but service is recommended to prevent escalation. This code applies to OBD-II compliant electric and hybrid vehicles.
Possible Causes
- Damaged CAN or LIN bus wiring
- Faulty or non-responsive control module
- Software or firmware corruption in the module
- Power supply or ground issue at the module
Recommended Actions
- 1 Note the alert and schedule a diagnostic appointment when convenient
- 2 Scan for all DTCs with an OBD-II scanner — note any related codes stored alongside U1451
- 3 Inspect the vehicle network (CAN/LIN bus) component and its wiring for visible damage
- 4 Check for water intrusion in connector areas and clean contacts if corroded
- 5 Clear the DTC, road-test the vehicle, and re-scan to confirm whether the fault returns
- 6 If the fault persists after inspection and clearing, consult an EV-certified technician for component replacement