IDB_a001_mcuGenericFault
Power braking assist reduced
What does the IDB_a001_mcuGenericFault alert mean?
An internal software/hardware issue is detected on the the Integrated Dynamic Brake (IDB) MicroController Unit (MCU).
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
An internal microcontroller software/hardware issue is detected.
When it clears
No internal issue is detected after changing operation cycle. If the condition persists, the IDB module may require replacement.
Potential impact
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 Electronic Brake Distribution (EBD), 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. Increased braking effort may be necessary to achieve desired deceleration. The vehicle should be driven with extreme caution.
Affected models
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