Last Warning Event PID Definitions
WARNING: This page is about a different car, the 2014 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The TPMS uses the TPMS last warning event PIDs to store detailed information about the last 5 times the TPMS warning indicator was activated. These PIDs can be used to acquire more information about a particular TPMS event, but must be used carefully.
| EVT1_AGE_IGN through EVT5_AGE_IGN | The number of key cycles since the TPMS was activated. This PID cycles from zero to 255 and then starts over from zero again. Default is $00, this can be used to determine how long ago a TPMS event occurred and the time (in key cycles) between events. |
| EVT1_TR_LOC through EVT5_TR_LOC | This is the last programmed location for the TPMS sensor identifier causing each TPMS event. Due to tire rotation, the sensor may no longer be at the original location. It is suggested that all the PIDs be recorded, the system retrained, and then the sensor identifier PIDs be used to pinpoint the actual location of each sensor. |
| EVT1_PSI through EVT5_PSI | This is the tire pressure associated with each TPMS indicator event. This can be used along with the function code to clearly identify the TPMS events that were strictly due to low pressure. It can also be used to determine when a sensor is transmitting inaccurate tire pressure. |
| EVT1_SNSR_ST through EVT5_SNSR_ST |
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| EVT1_SNSR_ID through EVT5_SNSR_ID | This is the identifier of the sensor involved in each TPMS event. EVT1 is the most recent event that triggered the TPMS warning indicator. Default is $ 00 00 00 00. |