APP_w055 — Radc Version Mismatch
Full alert identifier: APP_w055_radcVersionMismatch
Alert description
The Autopilot electronic control unit (ECU) detects the radar ECU is running a firmware version that is not compatible with the firmware version installed on the Autopilot ECU. May occur after an unsuccessful or incomplete firmware update, and may be resolved through a successful firmware update.
Potential impact
Traffic-Aware Cruise Control (TACC) is unavailable. Other Autopilot features may be limited or unavailable.
Set condition
The Autopilot ECU detects that the radar firmware cyclic redundancy check (CRC) does not return the expected result, indicating Autopilot ECU and radar ECU are not running compatible firmware versions.
Clear condition
The Autopilot ECU detects the radar ECU firmware version is compatible with the firmware version the Autopilot ECU is running.
Signals to check
These diagnostic fields are associated with APP_w055. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Detected Radc Version
APP_
|
— |
Expected Crc Lsw
APP_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of APP_w055.