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Immobilizer –DTC Troubleshooting Data
Version: 1.
2
Date:
03-June-2014
Prepared Author
:
Sarang K/Mithipati P
Review & approved by
: R A Rode (ERC-E&E)
Page: 27 of 67
Copyright ©
TATA MOTORS Ltd.
This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author.
Trouble Shooting:-
DTC’s confirmation:-
After rectification, ensure the following points before handing over the system to the customer
1) Battery Voltage is between 9 to 16V.
2) Replacement of ECU.
3) Drive the vehicle on road and check the assistance.
Circuit Schematic Diagram:-
VICM
pin
no
Pin description
1
Vbatt (KL30)
2
GND
3
CAN_H(High-speed)
4
Ignition (KL15)
5
Status LED
6
Trasport Mode Fuse (10A)
7
Battery Supply (+Vbatt)
8
CAN_L(High-speed)
Reset the ECU (Remove the
power plug from ECU and
reconnect after about 5 minutes)
Yes
No
Is DTC still
present?
Stop
Replace
the ECU.
Is DTC
Present?
Yes
No
Stop
1. Connect the TML Diagnostic Tool.
2. Turn the Ignition ON
3. Check the status of DTC’s(Memorized¤t)
4. Record the DTC & Clear
5. Turn Ignition OFF & ON
6. Verify If
U1006 – 42
is present