A special TPMS tool and additional time are also needed to check and reset the sensor system. See why a TMPS is an important function of your vehicle and learn how to read it. What is TPMS? Why do vehicles have TPMS? How does the Tire Pressure Monitoring System work? A TPMS sensor is installed in the spare wheel if the vehicle is equipped with a matching full size spare wheel and tire assembly. For factory installed remote start vehicles, the remote start antenna is external to the WCM. All four receivers share a number of common components.
Once the low tire pressure warning has been illuminated, the tire pressure must be increased to the recommended cold placard pressure in order for the TPMS warning lamp to be turned off. The system will automatically update and the TPMS warning lamp will extinguish once the updated tire pressures have been received. The vehicle may need to be driven for up to 10 minutes above 15 mph 25 kph to receive this information.
Using a RF signal, each sensor transmits tire pressure data approximately once every minute. Perform one of the following to allow the system to learn the new sensor ID:. TPMS pressures have been established for the tire size equipped on the vehicle. Undesirable system operation or sensor damage may result when using replacement equipment that is not of the same size, type or style.
Aftermarket wheels can cause sensor damage. Do not use aftermarket tire sealants or balance beads if the vehicle is equipped with TPMS, as damage to the sensors may result. NOTE: If a tire pressure sensor has been replaced, the tire pressure sensors must be retrained.
NOTE: Wheels and tires are match-mounted at the factory. Before demounting a tire from its wheel, a reference mark should be placed on the tire at the valve stem location, to ensure that it is remounted in the original position on the wheel. Based on the rate of revolution of each wheel, the computer can interpret the relative size of the tires on your vehicle.
When a wheel starts spinning faster than expected, the computer calculates that the tire is underinflated and alert the driver accordingly. Instead, an indirect tire pressure monitor simply measures how fast your tires are rotating and sends signals to the computer that will actuate the indicator light when something in the rotation seems amiss.
Direct TPMS uses pressure monitoring sensors within each tire that monitor specific pressure levels — not just wheel revolution data from the anti-lock brake system. Sensors in a direct TPMS may even provide tire temperature readings. A direct tire pressure monitor usually sends all of this data wirelessly. All this information is processed within seconds of the vehicle driving and all done automatically. Owners have attempted to reset the TPMS monitoring system by disconnecting the battery.
If you disconnect the negative battery terminal for 5 minutes — all electronic modules and capacitors lose their memory. This is not only applicable to your TPMS system but every electronic circuit on your vehicle. This practice will also erase onboard error messages. As a process of elimination exercise, you can have the wheel with the faulty signals rotated with a wheel that has a good signal.
The receiver gets its information from the dual-axis accelerometer in the wheel sensors. This is used to determine the front and rear position through its signal strength. These are highly sophisticated sensors and should only be replaced by genuine OEM sensors. Avoid the cheap versions. This is necessary for the TPMS to receive the updated information. The TPMS has been specifically optimized to function only with the original tires and wheels. TPMS pressures and warnings have been established for the tire size equipped on your vehicle.
The TPM sensor is not designed to operate optimally with aftermarket wheels. This may result in poor overall system performance.
Here we strive to provide the most accurate, up-to-date, information about the functionality, common faults and latest technology built into most 4 Wheel Drives.
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