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PEPS Part ReplacementProcedure
Title: PEPS System Part Replacement Procedure
Spec Num 2921 XX XXX A XXXXTBD
Date:
28-Jul-18
Version:
1.5
Page: 11 of 25
Prepared:
Sandip
Checked:
Santosh B
Approved:
Dinesh DG
Thisspecification isthe exclusive property of Tata MotorsLimited. Withouttheir consent it may not be reproduced or given to third
parties
.
The above specificationsare subject to change and therefore suppliersare requested to refer the latest one.
CONTROLLED COPY FOR RESTRICTED CIRCULATION
© TATA MOTORS LTD.
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).
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) andwait for 1 second.
21)Write the same AES_SK code (using tester tool) in EMS ECU as well. Please refer EMS
diagnostic specification to write AES_SK code in EMS ECU.