“Blow harder” means that your breath sample did not last long enough for your test to register. “Hum stronger” means that you began humming either too late or too soon. It might also mean that your hum was not strong enough to register. “Blow softer” means that your breath sample was too strong. “Don’t inhale” means that you might have inhaled while your lips were still around the mouthpiece, therefore sucking air into the unit. “Abort tamper” means that you covered the vent on the back of your IID while blowing. “Mouth closer” means that you’ll need to hold the Ignition Interlock Device more firmly against your mouth to avoid letting the device pull away as you blow. To complete your test successfully, you will need to blow steadily for the full time of your test. Keep both your breath volume and your hum even during testing.
“Abort lock” means that you have exceeded the allowed number of aborts during a 15-minute period and will need to wait until the countdown completes before you attempt another test.