Immobilizer Control System - Suzuki Grand Vitara 2011 Manual

10C-1 Immobilizer Control System: For Petrol Engine Model

Immobilizer Control System

Control Systems
For Petrol Engine Model
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, combination meter, TCM, keyless start control module (if equipped), ABS/ESP®
control module, 4WD control module (if equipped), Steering angle sensor (if equipped) and DLC is established by
CAN (Computer Area Network). (For more detail of CAN communication, refer to "CAN Communication System
Description: For Petrol Engine Model in Section 1A") 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: For Petrol Engine Model".
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
S6JB0AA310002
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
S6JB0AA310003
temperature is high. High temperature may cause
damage to the transponder built in the ignition key.
I3RH0AA30001-01
S6JB0AA310001
1
I3RH0AA30002-01
I3RH0AA30003-01