Grand Caravan V6-3.3L VIN R (2005)
Tire Pressure Sensor: Testing and Inspection
DIAGNOSIS AND TESTING - TIRE PRESSURE SENSOR
NOTE: Tire pressure may increase from 2 to 6 psi (14 to 41 kPa) during normal driving conditions. Do NOT reduce this normal pressure build up.
When diagnosing a tire pressure issue, always check air pressure in the tires first with a known accurate air gauge. Adjust air pressure as necessary to
that listed on the Tire Inflation Pressure Label (Placard) provided with the vehicle (usually applied to the driver's side B-pillar). After adjusting air
pressure in a tire, allow approximately two minutes for the message or indicator lamp to go out.
Check the tire pressure indicator lamp in the instrument cluster. If the lamp is illuminating continuously, proceed as listed. If the indicator lamp is
flashing on/off three times, once every ten minutes, there is a system fault detected. Refer to the appropriate diagnostic information.
If air pressure in any tire is low, inspect all the tires for leaks. A water "dunk tank" or other water test may be used to check for a leak around the
sensor as long as any water at the valve core is removed once the procedure is completed. The water can be easily expelled from the core area by
pushing in on the core for several seconds, allowing escaping air to drive out any moisture. Reinflate the tire as necessary. Always make sure the
original valve stem cap is securely installed to keep moisture out of the sensor. If the gauge-read pressure in the tires does not indicate a tire pressure
issue, refer to the appropriate diagnostic information.
