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: 10 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.
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)
17)Write variant specific configuration data to PEPS against PLM server.
18) Provide PEPS ECU reset (service $11 01) and wait for 1 second.
19)Reset PEPS-BCM encryption counter in BCM (using tester tool).
x
PEPS-BCM Encryption Counter Reset Procedure BCM:
i. Send service request $ 31 01 34 0C
ii. Check Start routine response of the routine 71 01 34 0C 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)
20) Provide BCM ECU reset (service $11 01) and wait for 1 second.




