SRVO-098: ACC sensor DTERR alarm
The vibration-control acceleration sensor isn't talking to the main board - not connected, or the communication failed.
What it means
The vibration-control acceleration sensor isn't talking to the main board - not connected, or the communication failed. Only appears on systems using the accelerometer-based vibration control options.
Common causes
Ranked by what technicians most often find, most likely first.
- Sensor cable connector loose.
- Cable shield not grounded at the grounding plate.
- Failed cable or sensor.
- Main board fault (last resort).
How to fix it
- Reseat the sensor cable connectors; verify shield grounding.
- Replace the cable, then the sensor.
- Before any main board swap, take a complete image backup - programs and settings live there. Power-cycle to clear.