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Home/DTC Codes/Aston Martin/DB9/2004-2016 6.0L V12/C0111
C0111

Brake Apply Circuit Low

2004-2016 Aston Martin DB9 6.0L V12

Moderate SeverityChassisGeneric (SAE)

Description

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.

Related Codes

C0095Brake Lamp Switch CircuitC0110Brake Apply Circuit

Other Chassis Codes

C0111 on Other Vehicles

Aston Martin DB11

2016-2024 4.0L V8 Twin Turbo

Aston Martin DB11

2016-2024 5.2L V12 Twin Turbo

Aston Martin DB7

1994-2003 3.2L I6 Supercharged

Aston Martin DBS Superleggera

2019-2024 5.2L V12 Twin Turbo

Aston Martin DBX

2020-2024 4.0L V8 Twin Turbo

Aston Martin Vantage

2005-2024 4.7L V8

Aston Martin Vantage

2018-2024 4.0L V8 Twin Turbo

Common Questions

What does code C0111 mean on a 2004-2016 Aston Martin DB9?

C0111 stands for "Brake Apply Circuit Low". Low signal in the brake apply circuit indicates the module does not see brake application.

What are the symptoms of C0111 on a Aston Martin DB9?

Common symptoms of C0111 include: Cruise control inoperative, Shift interlock stuck, Brake lights may not illuminate, ABS light on.

What causes C0111 on a 2004-2016 Aston Martin DB9?

Common causes of C0111 include: Brake switch stuck open, Wiring short to ground, Brake pedal not contacting switch, Switch plunger broken.

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