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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.