C1140: Hydraulic Base Brake Failure

What does C1140 mean?

C1140 is a diagnostic trouble code indicating "Hydraulic Base Brake Failure". This code relates to your vehicle's anti-lock brakes and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Symptoms you may notice

• Check engine light (MIL) illuminated on dashboard
• ABS warning light on
• Brake pedal feels different
• Unusual braking behaviour

Common causes

• Faulty anti-lock brakes component
• Wiring or connector issue in the related circuit
• Failed sensor providing incorrect readings
• Software/calibration issue requiring ECU update
• Related component causing secondary fault

What should you do?

This is a critical issue. Stop driving as soon as it is safe to do so and have the vehicle inspected immediately. Continuing to drive could cause further damage or pose a safety risk.