8G
IMMOBILIZER CONTROL SYSTEM 8G-1
GENERAL DESCRIPTION8G- 2 . . . . . . . . . . . . . .
On-Board Diagnostic System
(Self-Diagnosis Function) 8G- 4. . . . . . . . . . . . .
DIAGNOSIS8G- 6 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precautions in Diagnosing
Troubles 8G- 6. . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSTIC FLOW TABLE 8G- 8. . . . . . . . . . . . .
Diagnostic Trouble Code Check
(Immobilizer Control Module) 8G-10. . . . . . . . .
Diagnostic Trouble Code Check (ECM) 8G-10. .
Diagnostic Trouble Code Table 8G-12. . . . . . . . .
A-1 Code (DTC) is not Outputted
from Diagnostic Output Terminal
of Immobilizer Diagnostic Coupler 8G-13. . . . . A-2 Immobilizer Indicator Lamp Check
(Immobilizer Indicator Lamp does not
Light at Ignition Switch ON) 8G-14. . . . . . . . . . .
A-3 Immobilizer Indicator Lamp Check
(Immobilizer Indicator Lamp Remains
ON after Engine Starts) 8G-15. . . . . . . . . . . . . .
HOW TO REGISTER IGNITION KEY8G-16 . . . . .
PROCEDURE AFTER IMMOBILIZER
CONTROL MODULE REPLACEMENT8G-17 . .
PROCEDURE AFTER ECM
REPLACEMENT8G-18 . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS8G-18 . . . . . . . . . . . . . . . . . . . . . .
SECTION 8G
IMMOBILIZER CONTROL SYSTEM
WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
Service on and around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under “Gener-
al Description” in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and “Service Precau-
tions” under “On-Vehicle Service” in air bag system section before performing service on or around
the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional
activation of the system or could render the system inoperative. Either of these two conditions may
result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system may
be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
Whether the immobilizer indicator lamp is used in the particular vehicle or not depends on specifica-
tions. If there is a monitor coupler in the engine room near the left strut assembly, the vehicle is not
equipped with immobilizer indicator lamp and if there isn’t, it is equipped with immobilizer indicator
lamp.
For the descriptions (items) not found in this section, refer to the section 8G of the Service Manual men-
tioned in FOREWORD of this manual.
CONTENTS
8G-14 IMMOBILIZER CONTROL SYSTEM
1. Main fuse
2. Main relay
3. ECM
4. Immobilizer indicator lamp
(Vehicle not equipped with
monitor coupler)For G10 engine
For G13B engine
For G10 engine For G13B engine
A-2 IMMOBILIZER INDICATOR LAMP CHECK
(IMMOBILIZER INDICATOR LAMP DOSE NOT LIGHT AT IGNITION SWITCH ON)
STEPACTIONYESNO
11) Turn ignition switch ON.
Do other indicator / warning lights in
combination meter come ON?Go to Step 2.“IG” fuse blown, main fuse blown,
ignition switch malfunction,
“(d)” circuit between “IG” fuse
and combination meter or poor
coupler connection at
combination meter.
21) Turn ignition switch OFF and
disconnect connectors from ECM.
2) Check for proper connection to ECM
at terminal C02-18 for G10 engine or
C01-28 for G13B engine.
3) If OK, then using service wire, ground
terminal C02-18 for G10 engine or
C01-28 for G13B engine in connector
disconnected.
Does immobilizer indicator lamp turn on
at ignition switch ON?Substitute a known-
good ECM and
recheck.Bulb burned out or “(P)” wire
circuit open.
