Poor brakes. Faulty funciton of the electric vacuum pump of the brake system.

Read the instructions below then start the fault diagnostic procedure.

Symptom: Poor brakes. Faulty funciton of the electric vacuum pump of the brake system.

Poor brake servo operation.

Fault symptom

Poor brakes.

Faulty funciton of the electric vacuum pump of the brake system.

Conditions

No leakage in vacuum system.

ME9

Diagnostic help

Fault diagnosis only covers the vacuum pump with corresponding leads and components.