USM-A240
USM_a240_s1HwComErrDiagnostics
What does USM-A240 mean?
Tesla alert code in the Ultrasonic Sensor Module (USM) module. Alert indicating at least 1 of the 12 fascia ultrasonic sensors has a communication error set Unexpected fault in a E52417 device The E52417 device is reporting a fault condition The vehicle is not able to go to sleep because of some ECU's not going quiet on one or more CAN buses Exiting SLEEP_STANDBY vehicle state without successfully putting buses to sleep. 12V battery high current draw, will need to support 12V battery sooner than expected
Original Description
Alert indicating at least 1 of the 12 fascia ultrasonic sensors has a communication error set Unexpected fault in a E52417 device The E52417 device is reporting a fault condition The vehicle is not able to go to sleep because of some ECU's not going quiet on one or more CAN buses Exiting SLEEP_STANDBY vehicle state without successfully putting buses to sleep. 12V battery high current draw, will need to support 12V battery sooner than expected
Severity Notes
USM-A240 is an Alert in the Ultrasonic Sensor Module system. It is generally safe to continue driving, but have it checked at your next scheduled service.