Suzuki GA413 Service Manual page 963

8G-4 IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED)
1. Immobilizer Control Module
2. Coil antenna
IMMOBILIZER CONTROL MODULE
Immobilizer Control Module is installed to the underside of the
instrument panel at the driver's seat side.
As main functions, Immobilizer Control Module checks matching
not only between the Transponder Code transmitted from the igni-
tion key and that registered in Immobilizer Control Module (Up to
4 different Transponder codes can be registered.) but also be-
tween the ECM/Immobilizer Control Module code transmitted from
ECM and that registered in Immobilizer Control Module. In addi-
tion, it has an on-board diagnostic system (self-diagnosis function)
which is described in "On-Board Diagnostic System (Self-Diagno-
sis Function)" in this section.
ECM
As main functions, ECM not only checks matching of ECM/Immobi-
lizer Control Module code but also has an on-board diagnostic sys-
tem (self-diagnosis function) as described in "On-Board Diagnostic
System (Self-Diagnosis Function)" in this section.
For installation position of ECM, refer to Section 6E.
ON-BOARD DIAGNOSTIC SYSTEM
(SELF-DIAGNOSIS FUNCTION)
Immobilizer Control Module and ECM diagnose troubles which
may occur in the area including the following parts when the igni-
tion switch is ON.
D ECM/Immobilizer
ECM:
Control Module
code
D Serial data link
circuit
D ECM
D Transponder code
Immobilizer
D Coil antenna
Control
D ECM/Immobilizer
Module:
Control Module code
D Serial data link circuit
D Immobilizer Control
Module
D Ignition signal