TESLA Diagnostic

ESP-D121

ESP_d121_rcmInvalidFrame1

Also written as ESP_D121 / ESP D121 / ESP_d121_rcmInvalidFrame1 / esp_d121_rcminvalidframe1

System
ESP
Electronic Stability Program
Type
Diagnostic
Category
Chassis
Severity
Diagnostic / Info

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 ESP-D121 mean?

Tesla diagnostic code in the Electronic Stability Program (ESP) module. Invalid data received from airbag control module: data length code, checksum, or parity invalid.

Original Description

Invalid data received from airbag control module: data length code, checksum, or parity invalid.

Affected Tesla Models

Model SModel XModel 3Model YCybertruck

What You May Notice

  • ESP-D121 may appear with another Tesla alert in the Electronic Stability Program (ESP) system.
  • The vehicle may limit charging, driving, comfort, or safety features depending on the active alerts.
  • The alert may clear after sleep, but recurring alerts should be treated as service-relevant.

How to Diagnose and Resolve

  1. 1 Reboot the vehicle by holding both scroll wheels
  2. 2 Check for available OTA software updates
  3. 3 If alert persists after reboot, schedule a service appointment

Severity Notes

ESP-D121 is a diagnostic or informational code in the Electronic Stability Program system. Typically no immediate action is required.

Other ESP Codes

ESP_a001 ESP_a002 Tesla alert code in the Electronic Stability Program (ESP) m... ESP_a003 ESP_a004 ESP_a005 ESP_a006 ESP_a007 ESP_a008 Tesla alert code in the Electronic Stability Program (ESP) m...
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