PEPS Part Replacement Procedure
Title: PEPS System Part Replacement Procedure
Spec Num 2921 XX XXX A XXXXTBD
Date:
14-Jan-17
Version:
1.2
Page: 12 of 23
Prepared:
Rakesh / Sandip
Checked:
Nagnath
Approved:
Dinesh DG
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.
{
Successful
}// END if (XX == 01 && YY==01)
Else
{
Unsuccessful
}// END else if (XX == 01 && YY==01)
28) Lock AES_SK code in BCM.
x
AES_SK Locking Procedure BCM:
i. Send service request $ 31 01 34 0A
ii. Check Start routine response of the routine (71 01 4F 0A XX YY). XX =
RoutineStatusRecord, RoutineInformation, YY = Response additional data
iii. If (XX == 01 && YY==01)
{
Successful
}// END if (XX == 01 && YY==01)
Else
{
Unsuccessful
}// END else if (XX == 01 && YY==01)
29) Lock AES_SK code in EMS ECU. Please refer EMS diagnostic specification to lock
AES_SK code in EMS ECU.
30)Clear all DTC (parallel request to all ECUs)
31)Read and confirm variant specific configuration data of PEPS against PLM server $22 all
DIDs". If there is any mismatch, Rectify the problem and start the execution from the
beginning.




