How to Write TPMS Sensor ID with 431?
2 Answers
431 writes TPMS sensor ID on time. Function: This function registers tire identifiers for the tire pressure warning system, used after replacing TPMS sensors. Precautions: Registration will fail if any step exceeds the time limit. Warning: Registration will fail if the system is still in the initialization process. Only perform this function when replacing TPMS sensors. Before execution, read the data stream and record the TPMS sensor IDs obtained from it. Compare problematic sensors to confirm the TPMS sensor numbers that need replacement. For sensors not replaced, write the original numbers; for replaced sensors, write new numbers.
As an experienced driver, I've dealt with numerous tire pressure sensor issues. The key to writing IDs lies in using TPMS tools, such as universal programmers. First, start the vehicle to put it in a ready state, then use the tool to scan each tire's sensor to read the original ID. Afterward, access the vehicle's diagnostic system via the OBD interface to manually input the new ID or match existing records. The entire process takes about 10 minutes, but it's crucial to operate on each tire separately without mixing up the sequence, otherwise the warning light may trigger false alarms. It's advisable to regularly monitor sensor battery life and program new tires promptly to avoid sudden alerts on the road. For tool selection, Autel or similar brands work very smoothly, and don't forget to keep a pressure gauge handy for double-checking values.
