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Transponder & CAN based Immobilizer (Continental)
Part Replacement handling – Service Documentation
TITLE
: Immobilizer (Conti) Service Manual-Aria Eagle
xxxx
Date
: 28-08-2015
Version
: 0.1
Page
:
9 of 25
Prepared :
Amanulla Bugga
Approved: Dinesh G Dodmane
This specification is the exclusive property of Tata Motors Limited. Without their consent it may not be
reproduced or given to third parties
.
The above specifications are subject to change and therefore
suppliers are requested to refer the latest one.
CONTROLLED COPY FOR RESTRICTED CIRCULATION
3.
Diagnostic Troubleshooting Table for both EMS & ICU, with DTCs:
3.1.
This is valid for Aria Eagle Diesel DCM3.7 EMS ECU
Following chart has information (DTC’s under different operating conditions), which may occur on vehicle.
No
Scenario
DTC codes
Status lamp
(“lock”
symbol)
Vehicle
starting
Remarks
EMS
IMMO
IGN
OFF
IGN
ON
1.
CAN_H or CAN_L or both
wire open circuit
U0167
-31 U0028-13 Blink ON
No
NO_RESPONSE and
CAN_MUTE error
2.
CAN_H & CAN_L wires
swapped
U0167
-31
-
Blink ON
No
CAN_OFF and
CAN_MUTE error
3.
CAN_H / CAN_L shorted to
GND or Vbatt, OR Shorted
to each other
U0167
-31
U0028-
88
Blink ON
No
CAN_OFF and
CAN_MUTE error
4.
No battery supply to ICU
-
--
OFF OFF
Yes
Permanent error
status
5.
No Ignition supply to ICU
U0167
-31
U3007-14 Blink Blink
Yes
"NO_RESPONSE”
from Immo error in
EMS.
6.
No Ground connection to
ICU
U1016
7-31
--
OFF OFF
No
"NO_RESPONSE”
from Immo error in
EMS.
7.
Different AES key code in
EMS & ICU
P0633-
54
U0246
-86
B1639-81
B1639-06 Blink ON
No
-
8.
Battery supply < 6.5V
-
U3006-16 Blink OFF
No
-
9.
Battery supply > 16V
-
U3006-17 Blink OFF
No
-
10.
Mechanical key
(without transponder)
P0513-
95
B1636-31 Blink ON
No
-
11.
Wrong E-key (mismatch of
transponder & code in ICU)
P0513-
95
B1636-81 Blink ON
No
-
12.
Required E-keys are not
learnt with Immobilizer
--
B1637-84 Blink ON
Yes
-
13.
Immo Antenna failure
-
B163D-13 Blink ON
No
-
Immo hardware fault
U0426 B163A-96 Blink ON
No
-
14.
Immo Memory failure
-
U1006-
Blink ON
No