USM_a180 — S4 Blocked
Full alert identifier: USM_a180_s4Blocked
Alert description
Alert indicating that the sensor is blocked
Potential impact
Sensor function will be impaired, park assist features will be disabled.
Set condition
When the sensor has been detected as blocked
Clear condition
When the sensor is no longer blocked
Signals to check
Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.
| Signal | Unit |
|---|---|
Ambient Temperature
USM_
|
degC |
Rtm Compensated
USM_
|
us |
Rtm Offset
USM_
|
us |
Sensor Temperature
USM_
|
degC |
| Signal | Unit |
|---|---|
Rtm Offset From Init
USM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of USM_a180.