723 / 924
ELECTRICAL
105
(B) This is valid for 1.2 NA NG / TC PETROL engine EMS ECUs
No.
Text indicted
Condition
Description
Normal/ Abnormal
1
Immobilizer
programmed in EMS
-
EMS ECU software is
Immobilizer enabled
Normal
Virgin ECU
-
-
Abnormal
2
Engine starting
enabled by EMS
Original E-Key in SCL
Vehicle Ready to start
Normal
Engine starting
disabled by EMS
No/wrong E-Key in SCL Vehicle will not start
Abnormal
3
Immobilizer code
programmed in EMS
but not locked
Pairing operation not
done properly
AES key is written in to
EMS but not locked
Abnormal
(displayed only if
exists)
4
Immobilizer code
programmed in EMS
and locked
Pairing operation OK
AES key is written in to
EMS and locked.
Normal
5
Fast restart inactive
-
-
-
6
Key code OK /
Authentication OK
Successful
authentication & AES
key is OK
AES key for EMS ECU &
Immobilizer are same
Normal
No Valid key detected/
bad Authentication
Check the DTC code
Vehicle will not start l
Abnormal
7
Free start inactive
-
After pairing of EMS
ECU & Immobilizer, the
free starts are inactive
Normal
8
Immobilizer CAN
communication CAN
OFF/BUS OFF
Refer Diagnostic
manual
CAN communication
error (bus off/mute)
Abnormal
Immobilizer CAN
communication OK
-
-
Normal
Remedial Action
Following table indicates multiple solutions depending respective case.
Sr. No.
Cases
Corrective Actions
1
E-Key is lost
Get New E-key (1 no.) based on key tag no. Key learning procedure is
required.
2
Both E-Keys are
lost
Replace complete lockset (lockset consist of ignition switch with Immobilizer,
2 E-keys, front door locks, Boot lock & Glove Box lock). Pairing of EMS ECU
and ICU is required.
3
Immobilizer
is
damaged
Replace complete lockset (lockset consist of ignition switch with Immobilizer,
2 E-keys, front door locks, Boot lock & Glove Box lock). Pairing of EMS ECU
and ICU is required.
4
If Ignition lock is
damaged
Replace complete lockset (lockset consist of ignition switch with Immobilizer,
2 E-keys, front door locks, Boot lock & Glove Box lock). Pairing of EMS ECU
and ICU is required.
5
If Door or other locks
are damaged
Replace damaged lock only or Replace complete lockset (lockset consist of
ignition switch with Immobilizer, 2 E-keys, front door locks, Boot lock & Glove
Box lock). Pairing of EMS ECU and ICU is required.