The TPMS system is the shorten word of Tire Pressure Monitoring System. This system monitors the pressure of the tire and when it drops below a certain pressure, the TPMS ECU makes the warning lamp turn on for notifying the driver. This system consists of TPMS ECU(or TPMS Receiver), Initiators and TPMS sensors. Among components of TPMS system, the TPMS sensor is installed at each wheel rim. and its role is to measure the air pressure and the temperature of the tire and then it transmits its signals to TPMS ECU. The communication from TPMS sensors is done via RF(Radio Frequency) at a frequency.
When a vehicle is driving, the TPMS ECU gets signals that it stops from WE sensor. At this time, the TPMS ECU sets this DTC.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Check RF message |
•
The tire with TPM sensor not fitted at hub. |
Enable Conditions |
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Vehicle speed is at Normal Speed (>45 km/h (28 mph) | |
Threshold value |
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While driving, One or more than one sensor sends at least three times of continuous messages for its stop condition.From that point, it's the message on stop condition for over 4 minutes (It takes about 7 minutes at more than 30 km/h) |
