battery SUZUKI SWIFT 2000 1.G SF310 Service Workshop Manual

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-6 IMMOBILIZER CONTROL SYSTEM
DIAGNOSIS
ECM and Immobilizer Control Module have on-board diagnostic
system (a system self-diagnosis function) as described previously.
Investigate where the trouble is by referring to “DIAGNOSTIC
FLOW TABLE” and “DIAGNOSTIC TROUBLE CODE TABLE” on
later pages.
PRECAUTIONS IN DIAGNOSING TROUBLES
[PRECAUTIONS IN IDENTIFYING DIAGNOSTIC TROUBLE
CODE]
ECM
<Vehicle equipped with monitor coupler>

Before identifying diagnostic trouble code indicated by malfunc-
tion indicator lamp, don’t disconnect couplers from ECM, battery
cable from battery, ECM ground wire harness from engine.
Such disconnection will clear trouble codes for engine and emis-
sion control system stored in memory of ECM.

If abnormality or malfunction lies in two or more areas, malfunc-
tion indicator lamp indicates applicable codes three times each.
And flashing of these codes is repeated as long as diagnosis ter-
minal is grounded and ignition switch is held at ON position.

When ECM detects a trouble in both engine and emission control
system and immobilizer control system, malfunction indicator
lamp indicates trouble codes of both systems alternately while the
ignition switch is turned ON and the diagnosis terminal is
grounded.

Take a note of diagnostic trouble code indicated first.
<Vehicle not equipped with monitor coupler>

Before identifying diagnostic trouble code indicated through Su-
zuki scan tool, don’t disconnect couplers from ECM, battery cable
from battery, ECM ground wire harness from engine.
Such disconnection will clear trouble codes for engine and emis-
sion control system stored in memory of ECM.

When ECM detects a trouble in both engine and emission control
system and immobilizer control system, Suzuki scan tool indi-
cates trouble codes of both systems using Suzuki mode of ECM
applications.

Take a note of diagnostic trouble code indicated first.
Immobilizer Control Module

Take a note of diagnostic trouble code indicated first.