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Q5 Project –EMS ECU/Component Replacement
Procedure
Q5 Project – EMS ECU/ Component Replacement Procedure
Doc No: 2921 02 224 A1730
Date: 24 July 2017
Revision: 0.1
Page 9 of 26
Prepared: Shashank Addala / Prasad
M
Checked: Prasad M
Approved: Satishkumar P
This document contains confidential information which is exclusive property of TML. The contents of this
document shall not be reproduced, or conveyed, or given to third parties in any manner without the consent
of TML.
$ 27 04 XX XX XX XX (XX is the key calculated from the seed received through 27 02
command)
Command:
$ 2E 38 33 YY
(for writing the data back into New ECM)
$ 2E 38 43 YY
(for writing the data back into New ECM)
Where
YY
is data read from Old ECM
Step 4:
Proxi realignment / Variant COnfiguration to be done:
Perform Variant Configuration Reset:
Refer Section 4.21 – Variant Configuration Reset in ‘TML_PT_Q5_Routine Procedures_EMS
Requirement_2921 02 224 A1724_5June2017_V0.2’ document for routine procedure detail.
Perform the Variant Configuration after entering extended Diagnostic Session and Taking Security Access:
Pick the 6 byte variant configuration value from PLM for specific vehicle variant and save in Tester.
Command:
$ 10 03
Command:
$ 27 03
$ 27 04 XX XX XX XX (XX is the key calculated from the seed received through 27 02
command)
Command:
$ 2E FE AA YY
Where YY is 6 Byte value
[
Note:
Perform Ignition toggle (Ignition OFF and Ignition ON) once procedure is all procedures are completed
and steps are performed in EMS ECU.]