C1253 fault code: what it means

C1253: Brake actuator pump motor/relay fault on Lexus hybrids (RX400h/RX450h/GS450h electronic brakes). Usually the actuator is at the end of its life.

Chassis (brakes, steering, suspension) · Costly if missed

Usual causes, most likely first

internal leak in the brake actuator making the pump run constantly
worn brake pump motor
pump relay or wiring fault

C1253 by make

Lexus

Brake actuator pump motor/relay fault on Lexus hybrids (RX400h/RX450h/GS450h electronic brakes). Usually the actuator is at the end of its life.

Usual causes: internal leak in the brake actuator making the pump run constantly; worn brake pump motor; pump relay or wiring fault

What the repair usually costs

ABS / brake booster actuator replacement (Toyota hybrid)NZ$1,280–NZ$3,430 · A$1,140–A$3,090

Not sure what C1253 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.