The TPMS (Tire Pressure Monitoring System) is an electronic piece, which alerts the driver when the tire pressure is exceedingly low as it could lead to risky driving conditions. A frequent reason for the failure of a TPMS is unprofessional handling during a tire change or servicing. One may face the following problems regarding the TPMS.
1. A TPMS sensor is not working anymore due to the expiry of its battery.
2. The functioning of a TPMS sensor is irregular because of a faulty battery.
3. Since the antenna might be flawed the TPMS module is not accepting signals from one or more sensors.
4. The relearning technique is not followed properly after services like tire rotation.
5. The owner of the machine has no idea about the operations of a TPMS.
While diagnosing the Tire Pressure Monitoring System, one should look for a flawed TPMS valve and he should also observe the age and mileage of the motor vehicle since the TPMS sensors create their signals and utilize their battery life depending upon the usage of the vehicle. If the sensors operate in the way they are supposed to then he has to examine the other causes behind the problem.
A TPMS tool is necessary to make contact with a TPMS system through the OBDII diagnostic connector, which is placed beneath the instrument panel. After inserting the tool he should scan and subsequently write down the faulty codes so that there is no risk of forgetting them once the memory of the module is removed. There have been instances when the TPMS module has been working perfectly well but not receiving the correct data from the keyless entrance.
If that is the case he needs to consult the OE service information to have an understanding about the operation of a TPMS. A TPMS might crash or display false codes due to electromagnetic interference (EMI).
One needs to have a grasp of the workings of a TPMS because research says that even if the vehicle’s tires are low your TPMS will never let you realize that. The TPMS warning will only be reached to the owner when the pressure is 25 percent lower than the correct value which is sufficient to diminish fuel economy and make the tires adequately hotter.
Inspection of the TPMS can be done by:
A. Revolving the ignition key to its starting position and spotting the warning alert. If the light of the TMPS shows the decreasing pressure of the tire at any wheel, then one must inspect the pressure of the wheel with a reliable tire pressure-measuring instrument. If it is found to be inaccurate then one must regulate the pressure with the help of either compressed air or compressed nitrogen.
B. If the light points towards a faulty system then the ideal approach should be to attach a suitable examining tool to the system and gather information about any diagnostic trouble codes(DTCs).