Electronic Brake Force Distribution Malfunction
1995-2005 Pontiac Sunfire 2.2L I4
Description
The EBD system that proportions brake force between front and rear has detected a fault.
Symptoms
- ABS light on
- Brake warning light on
- Rear wheels may lock under hard braking
- Vehicle pulls to one side during braking
Common Causes
- ABS sensor mismatch between front and rear
- ABS modulator valve fault
- Uneven brake pad wear front to rear
- Brake pressure imbalance
Diagnostic Steps
- Compare all four wheel speed sensor readings during braking
- Check brake pad wear at all four corners
- Inspect ABS modulator valve codes
- Test brake pressure distribution
- Verify tire sizes match
Repair Notes
{"Diagnose underlying ABS or mechanical brake issue. EBD relies on ABS components to function."}
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
C0140 on Other Vehicles
Pontiac Aztek
2001-2005 3.4L V6
Pontiac Bonneville
1990-1999 3.8L V6
Pontiac Bonneville
2000-2005 3.8L V6
Pontiac Bonneville GXP
2000-2005 4.6L V8
Pontiac Bonneville GXP
2000-2005 4.6L V8 Northstar
Pontiac Bonneville SSEi
1992-1999 3.8L Supercharged V6
Pontiac Bonneville SSEi
1992-1999 3.8L V6 Supercharged
Pontiac Firebird
1993-1997 3.4L V6
Common Questions
What does code C0140 mean on a 1995-2005 Pontiac Sunfire?
C0140 stands for "Electronic Brake Force Distribution Malfunction". The EBD system that proportions brake force between front and rear has detected a fault.
What are the symptoms of C0140 on a Pontiac Sunfire?
Common symptoms of C0140 include: ABS light on, Brake warning light on, Rear wheels may lock under hard braking, Vehicle pulls to one side during braking.
What causes C0140 on a 1995-2005 Pontiac Sunfire?
Common causes of C0140 include: ABS sensor mismatch between front and rear, ABS modulator valve fault, Uneven brake pad wear front to rear, Brake pressure imbalance.