Diagnostic System Check - Tire Inflation Monitoring. Pontiac Grand Am 1999

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 1999 🢒 Grand Am 🢒 Suspension 🢒 Tire Pressure Monitoring 🢒 Diagnostic System Check - Tire Inflation Monitoring

Step	Action	Normal Result(s)	Abnormal Result(s)*
1	Check the pressure in all tires to ensure they are within 2 psi of one another. Turn the ignition switch to the ON position.	CHECK TIRE PRESSURE (Pontiac) or LOW TIRE PRESSURE (Oldsmobile) message is not displayed.	Low Tire Pressure Indicator Always On
2	Check all tire pressures. Tire pressures are not within 12 psi of one another. Turn the ignition switch to the ON position.	CHECK TIRE PRESSURE (Pontiac) or LOW TIRE PRESSURE (Oldsmobile) message is displayed.	Low Tire Pressure Indicator Inoperative
* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.

Step

Action

Normal Result(s)

Abnormal Result(s)*

Check the pressure in all tires to ensure they are within 2 psi of one another.

Turn the ignition switch to the ON position.

CHECK TIRE PRESSURE (Pontiac) or LOW TIRE PRESSURE (Oldsmobile) message is not displayed.

Check all tire pressures. Tire pressures are not within 12 psi of one another.

Turn the ignition switch to the ON position.

CHECK TIRE PRESSURE (Pontiac) or LOW TIRE PRESSURE (Oldsmobile) message is displayed.

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.