C0112
Brake Apply Circuit High
2002-2003 BMW X5 4.6is E53 4.6L V8
Moderate SeverityChassisGeneric (SAE)
Description
High signal in the brake apply circuit indicates constant brake application detected.
Symptoms
- Cruise control disengages immediately
- Brake lights always on
- ABS light on
- Shift interlock always released
Common Causes
- Brake switch stuck closed
- Wiring shorted to voltage
- Switch plunger stuck
- Pedal not fully returning
Diagnostic Steps
- Check if brake lights stay on with pedal released
- Test switch at rest and applied positions
- Inspect switch mounting
- Check pedal return spring
- Look for wiring shorts to voltage
Repair Notes
Replace brake switch. Check pedal return mechanism.
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
C0112 on Other Vehicles
Common Questions
What does code C0112 mean on a 2002-2003 BMW X5 4.6is E53?
C0112 stands for "Brake Apply Circuit High". High signal in the brake apply circuit indicates constant brake application detected.
What are the symptoms of C0112 on a BMW X5 4.6is E53?
Common symptoms of C0112 include: Cruise control disengages immediately, Brake lights always on, ABS light on, Shift interlock always released.
What causes C0112 on a 2002-2003 BMW X5 4.6is E53?
Common causes of C0112 include: Brake switch stuck closed, Wiring shorted to voltage, Switch plunger stuck, Pedal not fully returning.