1485 / 1863
ELECTRICAL
183
16.Configure the BCM ECU (parameterization of
BCM ECU) with following steps
a.
Turn IGN ON.
b.
Perform the parameterization as per vehicle
variant with the help of diagnostic tool.
c.
Power Latch - Ignition->OFF->ON transition.
(Make sure is key is taken out).
d.
Read and confirm configuration data from
BCM against server.
17.Read the DTCs and clear all the DTCs from
BCM ECU with the help of diagnostic tool.
18.Provide IGN off-on cycle.
19.Read the DTCs from BCM ECU with the help
of diagnostic tool. If any DTC is present, follow
the that DTC related troubleshooting
procedure to rectify it. (DTC troubleshooting
document to be referred).
MAJOR
PRECAUTIONS
FOR
REPLACEMENT
1. While replacing the BCMs, it is suggested not to
touch the BCM pins with hand.
2. While tightening the screws, tightening torque
must not exceed
3. BCM upper and lower covers shall not be
removed while verifying/replacing the BCM.
4. All of the service tool instructions for BCM
replacement shall be followed.
5. Any of the Base/Mid/Mid Gateway BCMs that
has to be removed from vehicle shall be
replaced with the same variant as that of
removed BCM.
Learn the RKE (remote key) as mentioned in step
14 of BCM replacement strategy
LEARNING OF KEY WITH IMMOBILIZER
PROCEDURE:
Conditions for key learning are
1. At the time of cranking Battery voltage should
not go below 10 Volts.
2. Diagnostic Software with latest version to be
used.
Procedure:
1. Connect the diagnostic software through
Diagnostic Link Coupler (DLC). Switch on the
ignition with Learned key. Then select
“TATA_Antitheft_Immobilizer” option & click on
“Locking, Key Routines”.
2. Click “Transponder key learning ADD”
option.
3. Immobilizer LED starts blinking. Once
blinking starts it means, Key is learned. Blinking
continues up to 30 seconds.
4. Within the 30 seconds switch OFF the ignition
and take out the key. Then insert the second
key and switch ON the ignition. Immobilizer LED
continues to be ON and starts blink. This means
second key is learned. Blinking will continue up
to next 30 sec.
5. For more e-keys repeat step number 4. Up to
six Keys can be learned at a time.
6. Now exit from the software and switch off
ignition.
7. Again switch ON ignition and open
Immobilizer software. Select
“Locking, Key
Routines”.
8. Check the status of learning by selecting the
option “Transponder Key learning STATUS “.
Also check the status of each key by Immobilizer
LED. After inserting the learned key, if LED goes
off it means keys are learned.
Note:
All E-keys need to be learnt, as ICU
removes all memory of existing keys except
the one used while initiating the procedure. If
any of the key is left without learning that
means it will not be a functional one.
PAIRING OF EMS-ECU & IMMOBILIZER
CONTROL UNIT:
A. For replacing only Immobilizer Control
Unit
(ICU):
Start the Diagnostic software and selec t