Vacuum Pump: Testing and Inspection

Brake system vacuum pump -V192-, checking
During the start sequence the brake system vacuum pump -V192- must run briefly.

Work sequence
- Position vehicle on a lifting platform, switch engine off.
- Start engine.
- Check by touch that the brake system vacuum pump -V192- is running with the assistance of a second person.
If the brake system vacuum pump -V192- does not run:
- Read engine control module Diagnostic Trouble Code (DTC) memory.
Refer to Powertrain Management; DTC memory