IDB_a013_motorPosSensorFault
Power braking assist reduced
What does the IDB_a013_motorPosSensorFault alert mean?
An Integrated Dynamic Brake (IDB) motor position sensor issue has occured.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
A hydraulic pump motor position sensor issue is detected.
When it clears
No motor position issue is detected at the start of the next power cycle. If the condition persists, the IDB module may require replacement.
Potential impact
Only Electronic Brake Distribution (EBD) may be available. The IDB enters fallback mode and relinquishes controlling status to the Redundant Control Unit (RCU). The RCU may assume controlling status and perform backup brake boost, but Anti-lock Brake System (ABS), Brake Traction Control (BTC), Vehicle Dynamics Control (VDC), Panic Brake Assist (PBA), Hydraulic Fade Compenration (HFC), Controlled Deceleration via Parking brake (CDP), Brake Disc Wipe (BDW), External Brake Request (EBR), and Secondary Collision Mitigation (SCM) may be unavailable. Increased braking effort may be necessary to achieve desired deceleration. The vehicle should be driven with extreme caution.
Affected models
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