EPAS-D004
EPAS_d004_KFC_NVRAM_MNG_VERIFY
Also written as EPAS_D004 / EPAS D004 / EPAS_d004_KFC_NVRAM_MNG_VERIFY / epas_d004_kfc_nvram_mng_verify
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does EPAS-D004 mean?
Tesla diagnostic code in the EPAS (EPAS) module. The Dataflash was not initialized.? The block was not written and could not be read back with the written data. This can be caused by a defective address decoder or defective Non-Volatile Random Access Memory (NVRAM). The reset conditions requires software restart, function inhibition reset, ignition change, and another function inhibition reset.
Original Description
The Dataflash was not initialized.? The block was not written and could not be read back with the written data. This can be caused by a defective address decoder or defective Non-Volatile Random Access Memory (NVRAM). The reset conditions requires software restart, function inhibition reset, ignition change, and another function inhibition reset.
Affected Tesla Models
What You May Notice
- EPAS alert: The Dataflash was not initialized.? The block was not written and could not be read back with the written data. This can
- Steering is functional but may feel slightly different
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Check for OTA software updates
- 3 Schedule service if the steering feels abnormal
Severity Notes
EPAS-D004 is a diagnostic or informational code in the EPAS system. Typically no immediate action is required.