6. Remove the old TPMS ECU from bracket. 7. Fix the new TPMS ECU on bracket. 8. Connect the TPMS ECU connector into their respective socket. 9. Ensure that connector is fitted tightly and properly. Connect the battery. 10. Connect the diagnostic tool to OBD connector. 11. Flash the vehicle specific calibration file 12. uploaded on server. Read the following ECU Part numbers and 13. compare with the server. a. Vehicle Manufacturer Spare Part Number ($22 F1 87). b. ECU Application Software Number ($22 72 41). c. Application Software Identification ($22 F1 81). Enter into diagnostic session extended and 14. unlock security to TPMS ECU (This is an essential step, without unlocking the security access further steps will not be executed). Write the VIN and VC. 15. Execute TPMS EOL Self-test routine. Refer 16. latest TPMS ESDS for detailed procedure. Read the DTCs from TPMS ECU with the help 17. of diagnostic tool. If any DTC is present follow the respective troubleshooting procedure to rectify the fault. Check the customer reported fault, whether it 18. is rectified. If the fault is rectified, disconnect the OBD 19. connector and diagnostic tool. TPMS ECU LEARNING PROCEDURE III. Prerequisite: 1. All TPMS Sensors and TPMS ECU to be learnt shall be available. 2. Check and verify part number of the TPMS ECU. It shall be 550254800102. Why ECU Learning is needed? 1. ECU is not having the respective Tire sensor ID with in its memory as it is recently flashed with updated software. This can be confirmed by reading DID for respective tire by using Diagnostic Tool. The respective DID are as follows: 6408: TPMS Front Left Tire ID • 6609: TPMS Front Right Tire ID • 640A: TPMS Rear Right Tire ID • 640B: TPMS Rear Left Tire ID • 640C: TPMS Spare Tire ID • TPMS learning can be done through two ways: 1. By using Triggering tools (LF tool). Triggering tool should be kept near to Tire valve to detect Sensor ID. This is done for all tires including spare. Once all tire IDs are known using LF tool, they are written in ECU using Diagnostic tools. The respective DIDs are as given above. (DID 64XX) 2. TPMS Learning can also be done manually by service engineer as given below: NOTE Please refer TPMS service diagnostics • specification for calibration file flashing procedure. NOTE Always provide ECU reset before reading • VC number NOTE Total numbers of TPMS Sensors to be learnt • are considered as 4, if spare tyre not applicable and 5 if spare tyre is applicable. Tyre Pressure Monitoring System (TPMS) 5
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