IC Replacement and Flashing Specification for Nexon EV programs TITLE: IC Replacement and Flashing Specification for Nexon EV programs Document number: TBD Date: 26/12/2019 Version: V1.0 Page: 11 of 21 Prepared: Shival Checked: Shivani/Zaheer Approved: Anand Sikchi This specification is the exclusive property of Tata Motors Limited. Without their consent it may not be reproduced or given to third parties. The above specifications are subject to change and therefore suppliers are requested to refer the latest one. CONTROLLED COPY FOR RESTRICTED CIRCULATION © TATA MOTORS LTD. 3.IC Replacement Strategy when IC is Functioning (Manual) Following are the steps to replace the IC ECU. Step 1: Connect Diagnostics Tool to OBD connector. Step 2: Inhale using 22 Service: Read and store DID 465F contents from existing IC using the Diagnostics Tool – Inhale using 22 Service. Step 3: Fit New IC and access default session and then access extended session. Step 4: IC compatibility check: We should check if the new IC fitted on vehicle is compatible for Replacement. Download VC data from PLM, which should contain 16R part numbers. Read following DID from IC and compare them with downloaded VC Data Sr No DID Parameter Name 1 F187 Vehicle manufacturer Spare part number Above parameter in IC should match with PLM data. Step 5: Send Tester Present to keep ECU in Extended Session. Step 6: Request Security Access. Step 7: Exhale using 2E Service:
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