IDB_a027 — Circuit Pres Sensor Fault
Full alert identifier: IDB_a027_circuitPresSensorFault
Alert description
The IDB circuit pressure sensor signal has an issue or the sensor is shorted to power/ground.
Potential impact
Brake boost pressure is limited to 100 bar. Anti-lock Brake System (ABS), Brake Traction Control (BTC), Vehicle Dynamics Control (VDC), Panic Brake Assist (PBA), Hydraulic Fade Compensation (HFC), Controlled Deceleration via Parking brake (CDP), Brake Disc Wipe (BDW), External Brake Request (EBR), and Secondary Collision Mitigation (SCM) may be unavailable. The vehicle should be driven with extreme caution.
Set condition
The IDB detects an issue with the brake circuit pressure sensor.
Clear condition
Clears when the issue is no longer detected by the IDB. If the condition persists, the IDB module may require replacement.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of IDB_a027.