C0111
Brake Apply Circuit Low
2007-2012 Mazda CX-7 2.5L I4
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
- Check if brake lights illuminate when pedal pressed
- Test switch continuity
- Inspect switch mounting and pedal contact
- Check wiring for shorts to ground
Repair Notes
Adjust or replace brake light switch. Check pedal bumper pad.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0111 on Other Vehicles
Common Questions
What does code C0111 mean on a 2007-2012 Mazda CX-7?
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 Mazda CX-7?
Common symptoms of C0111 include: Cruise control inoperative, Shift interlock stuck, Brake lights may not illuminate, ABS light on.
What causes C0111 on a 2007-2012 Mazda CX-7?
Common causes of C0111 include: Brake switch stuck open, Wiring short to ground, Brake pedal not contacting switch, Switch plunger broken.