Warning: To avoid personal injury, this test may be used only when the battery is fully charged and a battery charger is connected. Otherwise the engine may start at any time.

 

  1. Stop the vehicle and turn the engine off.
  2. Connect the compression gauge to the engine.
  3. Turn the ignition on.
  4. Activate the test to disable combustion.
  5. Turn the ignition key to the crank position.
  6. Measured values are displayed on the compression gauge.