X205 IPC Specific Diagnostic Specification TITLE: X2 IPC Specific Diagnostic Specification Document number: TBD Date: 28/12/2012016 Version: V1.1 Page: 10 of 11 Prepared: Amarnath / Nitin Jamdar/Muni Balaji/Ramakant Pandey /Nitin Jamdar Checked: Sanjay Jaisingh 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. ECU Replacement Strategy Description Following are the steps to replace the failure IPC ECU. Step 1: Connect Diagnostics Tool to Cluster and transition IPC ‘A’ to default session. Step 2: Read and store DID 465F contents in the Diagnostics tool – Inhale using 22 Service. Step 3: Transition target IPC ‘B’ to default session and then to extended session. Step 4: Send Tester Present to keep ECU in Extended Session. Step 5: Request Security Access. Step 6: Write DID 465F – Exhale using 2E Service. Step 7: Write DID 466B with the value of “0F” Note: The value of 0F should be locked in the tool, tool should not allow other values to write. Step 8: Run Auto learn routine 3F06 using appropriate security access in IPC ‘B’. Step 9: Cluster Replacement Completed. Verification can be done by reading the DID 4666 using 22 service for correct Odometer value updation in new cluster ECU IPC ‘B’. Ordering of Inhale – Exhale parameters – X205: DID’s No of bytes a. 4650 7 b. 46FF 1 c. 4665 2 d. 4663 1 e. 7235 15 f. 4666 7 g. F190 24 h. 7234 17 i. F188 17 j. 7244 17 k. 4660 1 l. 466B 1 Total Size would be 110 bytes.
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