Immobilizer Control System; Precautions; Precautions In Diagnosing Troubles; Precaution In Replacing Ecm - Suzuki GRAND VITARA Owner's Manual

Immobilizer Control System

Precautions in Diagnosing Troubles

• Before confirming the diagnostic trouble code (DTC),
do not disconnect connector from ECM, battery cable
from battery, ground wire harness, or main fuse. Such
disconnection will erase DTC stored in ECM.
• DTC stored in ECM memory can be checked as well
as cleared by using SUZUKI scan tool. Before using
SUZUKI scan tool, read its operator's manual
carefully to know how to use it and what functions are
available.
• Be sure to read "Precautions for Electrical Circuit
Service: in Section 00" before inspection.
• Communication of ECM, BCM, and combination
meter is established by CAN (Computer Area
Network). Therefore, handle CAN communication
lines with care referring to "Precaution for CAN
Communication System: in Section 00".

Precaution in Replacing ECM

• If ECM is replaced with new or used one without the
functionality for the immobilizer control system, the
engine will not be started. In case of the above, check
if the newly installed ECM has the functionality for the
immobilizer control system referring to its part
number.
• After ECM is replaced with new one or used one, the
transponder code in the transponder built in the
ignition key has to be registered with ECM. Or, the
engine cannot be started up. For the registration
procedure, refer to "Procedure after ECM
Replacement: ".
Precautions in Handling Immobilizer Control
System
• Do not turn ON ignition switch with ignition key in
contact with another one or quite close to another
one. Or, the immobilizer control system may detect
some abnormal condition and prevent the engine from
starting.

Precautions

• Do not turn ON ignition switch by using ignition key
S5JB0AA300001 with any type of metal (1) wrapped its grip or in
contact with it. Or, the immobilizer control system may
detect some abnormal condition and prevent the
engine from starting.
• Do not leave ignition key in a place where
temperature is high. High temperature may cause
damage to the transponder built in the ignition key.
S5JB0AA300002
• Do not turn ignition switch to ON position by bringing
S5JB0AA300003
radio antenna close to coil antenna. Or, the
immobilizer control system may detect some
abnormal condition and prevent the engine from
starting.
I3RH0AA30001-01

Immobilizer Control System:

1
10C-1
I3RH0AA30002-01
I3RH0AA30003-01
I3RH0AA30004-01