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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 10 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.
4.2
ECM - Engine Control Module
(In case of old ECM doesn’t communicates)
Description:
- See
Figure 1
: ECU Substitution Flow chart for more details
Substitution Type:
COMPONENT
Pre-Conditions:
1. ECU should be in Extended Diagnostic Session
2. Ignition ON (T15_st = 1)
3. Engine not running (NMotV = 0)
4. Gear in neutral position
Procedure To Be Followed:
Step 1:
Proxi realignment / Variant Configuration to be done;
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
Step 2:
IMA classification (for all injectors to be performed). IMA writing includes automatically ZFC1
procedure. IMA codes to be read either from Server / from the Injector label (Entering to extended Diag.
Session and Taking security Access is not required as in above step it has been done)
Command:
$ 2E 38 2F + 36 bytes
Step 3: Below Routine has to be executed
Lambda sensor UEGO-1 - ‘Exchange of Defective ECM’(LSU1 $
02 05 XX
) – Sub-function
01
Routine Execution Detail:
Refer Section 4.2.1 in ‘TML_PT_Q5_Routine Procedures_EMS Requirement_2921 02 224
A1724_5June2017_V0.2’ document