Checking the Vacuum Pump

Checking The Vacuum Pump







- Ignition off.
- Vacuum pump removed.
- Temporarily connect a cable between vacuum pump pin terminal 3 and the battery positive terminal. Connect a cable between vacuum pump pin terminal 2 and the battery negative terminal. The vacuum pump should start.
- Remove the temporarily connected cables.

Did the vacuum pump start?

Yes - Checking For Contact Resistance and Oxidation

No - Replacing the Component