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1999 BMW 528IT E39
2.8L I6 M52 Touring•RWD•AUTOMATIC•gas
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Repairs0Labor491Torque2161Fluid8DTC1210Battery1Maintenance0Recalls0
C0111moderate severityChassis

Brake Apply Circuit Low

on 1999 BMW 528iT E39 2.8L I6 M52 Touring · RWD

What this code means

Low signal in the brake apply circuit indicates the module does not see brake application.

Symptoms

  • Cruise control inoperative
  • Shift interlock stuck
  • Brake lights may not illuminate
  • ABS light on

Common causes

  • Brake switch stuck open
  • Wiring short to ground
  • Brake pedal not contacting switch
  • Switch plunger broken

Diagnostic steps

  1. Check if brake lights illuminate when pedal pressed
  2. Test switch continuity
  3. Inspect switch mounting and pedal contact
  4. Check wiring for shorts to ground

Repair notes

Adjust or replace brake light switch. Check pedal bumper pad.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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