immobilizer control system check SUZUKI SWIFT 2008 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 1A-2 Engine General Information and Diagnosis:
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” befo re inspection and observe
what is written there.
• ECM replacement: When substituting a known-good ECM, check for the
following conditions. Neglec ting this check may cause
damage to a known-good ECM.
– Resistance value of all relays, actuators is as specified respectively.
– MAP sensor, A/C refrigerant pressure sensor and TP sensor are in good condition and none of power
circuits of these sensors is shorted to ground.
• Communication of ECM, BCM, ABS/ESP ® control
module, combination meter, keyless start control
module, steering angle sensor (ESP ® model) and
TCM (A/T model), is esta blished by CAN (Controller
Area Network). (For more detail of CAN
communication for ECM, refer to “CAN
Communication System Description”). Therefore,
handle CAN communication line with care referring to
“Precaution for CAN Communication System in
Section 00”.
• Immobilizer transponder code registration after
replacing ECM
When ECM is replaced with new one or with another
one, make sure to register immobilizer transponder
code to ECM correctly according to “Procedure after
ECM Replacement in Section 10C”.Precautions of ECM Circuit InspectionS7RS0B1100003
• ECM connectors are waterproofed. Each terminal of the ECM connectors is sealed up with the grommet.
Therefore, when measuring ci rcuit voltage, resistance
and/or pulse signal at ECM connector, do not insert
the tester’s probe into th e sealed terminal at the
harness side. When measuring circuit voltage,
resistance and/or pulse signal at ECM connector,
connect the special tool to the ECM connectors. And,
insert the tester’s probe into the special tool’s
connectors at the harness side, and then measure
voltage, resistance and/or pulse signal. Or, ECM and
its circuits may be damaged by water.
• Wire colors of the special tool’s connectors are different from the ones of the ECM connectors.
However, the circuit arrangement of the special tool’s
connectors is same as the one of the ECM
connectors. Therefore, measure circuit voltage and
resistance by identifying the terminal location subject
to the measurement.
Precautions of Electric Throttle Body System
Calibration
S7RS0B1100004
After performing one of works described below, it is
necessary to re-register the completely closed throttle
valve reference position stored in memory of ECM. (For
detailed information, refer to “Description of Electric
Throttle Body System Calibration”.) For the procedure to
register such data in ECM, refer to “Electric Throttle
Body System Calibration in Section 1C”.
• To shut off backup power of ECM for such purposes of battery replacement or “DOME” fuse removal
• To erase DTCs P0122, P01 23, P0222, P0223, P2101,
P2102, P2103, P2111, P2112, P2113, P2119, P2123,
P2127, P2128, P2135 and/or P2138
• To replace ECM
• To replace throttle body and/or accelerator pedal position (APP) sensor assembly
General Description
Statement on Cleanliness and CareS7RS0B1101001
An automobile engine is a combination of many
machined, honed, polished and lapped surfaces with
tolerances that are measured in the thousands of an
millimeter (ten thous ands of an inch).
Accordingly, when any internal engine parts are
serviced, care and cleanliness are important.
It should be understood that proper cleaning and
protection of machined surfaces and friction areas is part
of the repair procedure. This is considered standard
shop practice even if not specifically stated.
• A liberal coating of engine oil should be applied to friction areas during assembly to protect and lubricate
the surfaces on initial operation. • Whenever valve train components, pistons, piston
rings, connecting rods, rod bearings, and crankshaft
journal bearings are removed for service, they should
be retained in order.
At the time of installation, they should be installed in
the same locations and with the same mating
surfaces as when removed.
• Battery cables should be disconnected before any major work is performed on the engine.
Failure to disconnect cables may result in damage to
wire harness or other electrical parts.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-13
Engine and Emission Control System Flow Diagram
Intake manifold
Exhaust gas AirFuel
Va p o r
EVAP canister purge valve
ECM
Barometric pressure sensor
A/C compressor clutch
Generator
Immobilizer
coil antenna
P/S controlmodule
Brake light switch
Air cleaner
IAT
sensor MAF
sensor
A/C refrigerant
pressure sensor
TP
sensor
Throttle body
assembly
Throttle
actuator
Wheel speed
sensor (VSS)
Steering angle sensor (ESP® model)
ABS / ESP® control module
Blower speed
selector
MAP
sensor EGR
valve
Check valve
EVAP
canisterTCM
Exhaust
manifold Exhaust
pipe
Fuel injector
ECT
sensor
Heater
control
HO2S-1 HO2S-2
Engine
CMP
sensor CKP
sensor
Knock
sensor Ignition
coil with
igniter
Fuel tank
Fuel
pump CMP actuator
oil control valve (VVT model) Three way
catalyst
Heater
control
Radiator
cooling fan
Combination meter
· MIL
· Coolant Temp.
· Immobilizer indicator light
· Tachometer
· Speedometer
· Odometer
· Diagnostic trouble code (DTC)
Keyless start
control module
DLC
· Electric load
· A/C switch ON
BCM
Diagnosis
connector
(Hong Kong model) Electric load
current sensor (if equipped)
APP sensor
I7RS0B110004-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-39
8Check ignition timing
1) Using SUZUKI scan tool, select “Misc Test” mode on
SUZUKI scan tool and fix ignition timing to initial one.
2) Using timing light (1), check initial ignition timing. Special tool
(A): 09930–76420
Is it 5
°± 3° BTDC at specif ied idle speed? Go to “Engine Symptom
Diagnosis”.
Check ignition control
related parts referring to
“Ignition Timing
Inspection in Section
1H”.
9 Check immobilizer system malfunction
1) Check immobilizer indica tor lamp for flashing.
Is it flashing when ignition switch is turned to ON position? Go to “Diagnostic
Trouble Code (DTC)
Check in Section 10C”.
Go to Step 10.
10 Check fuel supply
1) Check to make sure that enough fuel is filled in fuel tank.
2) Turn ON ignition switch for 2 seconds and then OFF.
3) Repeat Step 2) a few times.
Is fuel pressure felt from fuel feed hose when ignition switch
is turned ON? Go to Step 12. Go to Step 11.
Step Action Yes No
I2RH01110006-01
1, (A)
10
0I3RB0A180004-01
I3RM0A110014-01

Downloaded from www.Manualslib.com manuals search engine Steering Wheel and Column: 6B-8
Installation
CAUTION!
After tightening steering column mounting
nuts, shaft joint bolts should be tightened.
Wrong tightening order could cause a
damage to shaft joint.

1) Be sure that front wheels are in straight.
2) Install steering column assembly to lower and upper brackets. Tighten steering column lower nuts (1) first
and then upper nuts (2) to specifications as given
below.
Tightening torque
Steering column nut (a): 14 N·m (1.4 kgf-m, 10.5
lb-ft)
NOTE
After installing tilt steering column, make
sure that steering column moves backwards
and forwards smoothly and stops when tilt
lever is fixed.

3) Align flat part “A” of stee ring lower shaft (1) with bolt
hole “B” of shaft joint (2) of column as shown. Then
insert lower shaft into shaf t joint of steering column
with matching marks (4).
4) Insert lower shaft (1) into pinion shaft (3) with matching marks (4).
5) Tighten joint bolt (pinion shaft side) (6) to specified torque first and then joint bolt (steering column side)
(5) to specified torque.
CAUTION!
After tightening column nuts, tighten steering
shaft upper joint bolt. Otherwise shaft joint
bearing is damaged.

Tightening torque
Steering shaft joint bolt (a): 25 N·m (2.5 kgf-m,
18.5 lb-ft) 6) Install steering joint cover.
7) Install immobilizer cont
rol module from steering
column, referring to “Immo bilizer Control Module
(ICM) Removal and Installation in Section 10C”.
8) Install lighting switch and wiper switch to steering column.
9) Install contact coil cable assembly and steering wheel referring to “Conta ct Coil Cable Assembly
Removal and Installation” and “Steering Wheel
Removal and Installation”.
10) Install steering column hole cover. 11) Connect negative (–) battery to cable.
12) Enable air bag system refe rring to “Enabling Air Bag
System in Section 8B”.
Steering Column InspectionS7RS0B6206007
Check steering column for damage and operation
referring to “Checking Steering Column for Accident
Damage”.
2,(a)
1,(a)
1,(a)
2,(a)
I4RS0B620009-02
I6RS0C620003-01

Downloaded from www.Manualslib.com manuals search engine Table of Contents 10- i
10
Section 10
CONTENTS
Control Systems
Precautions ............................................... 10-1
Precautions........................................................... 10-1
Precautions for Control Systems......................... 10-1
Body Electrical Contro l System ........... 10B-1
Precautions......................................................... 10B-1
Precautions in Diagnosing Trouble ................... 10B-1
General Description ........................................... 10B-1 BCM General Description ................................. 10B-1
CAN Communication System Description......... 10B-2
Theft Deterrent Light ......................................... 10B-3
Security Alarm Description (If Equipped) .......... 10B-3
Schematic and Routing Diagram ...................... 10B-4 Body Electrical Control System Wiring Circuit Diagram .......................................................... 10B-4
Connector Layout Diagram of BCM and Junction Block Assembly ................................ 10B-7
Component Locatio n ......................................... 10B-8
BCM and Related System Component Location .......................................................... 10B-8
Diagnostic Information an d Procedures .......... 10B-9
BCM Self-Diagnosis Function ........................... 10B-9
Body Electrical Control System Check............ 10B-10
Scan Tool Data ............................................... 10B-12
DTC Table ....................................................... 10B-14
DTC Check ..................................................... 10B-14
DTC Clearance ............................................... 10B-15
BCM Power Circuit and Ground Circuit Check 10B-16
DTC B1133 (DTC No. 1133): Battery Voltage Too High ....................................................... 10B-17
DTC B1141 / DTC B1142 (No. 1141 / No. 1142): Outside Air Temperature (Ambient
Temp.) Sensor Circuit Ma lfunction ................ 10B-18
DTC B1150 (No. 1150): Air Bag Communication Circuit Malfunction .............. 10B-19
DTC B1157 (No. 1157): Air Bag Deployment Signal Input ................................................... 10B-20
DTC B1170 (No. 1170 ): EEPROM Access
Error .............................................................. 10B-21
DTC U0155 (No. 0155): Lost Communication with Instrument Panel Cluster (IPC) Control
Module .......................................................... 10B-21
DTC U1073 (No. 1073): Control Module Communication Bus Off ................................ 10B-24 DTC U1100 (No. 1100): Lost Communication
with ECM ....................................................... 10B-25
DTC U1101 (No. 1101): Lost Communication with TCM ....................................................... 10B-27
DTC U1144 (No. 1144): Lost Communication with Keyless Start Control Module ................ 10B-29
Inspection of BCM and its Circuits .................. 10B-31
Repair Instructions ........... ...............................10B-39
BCM (Included in Junction Block Assembly) Removal and Installation ............................... 10B-39
Outside Air Temperature Sensor Removal and Installation .............................................. 10B-39
Outside Air Temperature Sensor Inspection ... 10B-39
Security Alarm Mode Selection Procedure (If Equipped) ...................................................... 10B-39
Special Tools and Equipmen t .........................10B-40
Special Tool .................................................... 10B-40
Immobilizer Control Syst em ................. 10C-1
Precautions.........................................................10C-1
Precautions in Diagnosing Troubles .................10C-1
Precaution in Replacing ECM ...........................10C-1
Precautions in Handli ng Immobilizer Control
System ............................................................10C-1
General Description ...........................................10C-2 Immobilizer Control System Introduction ..........10C-2
Immobilizer Control System Components Location...........................................................10C-3
On-Board Diagnostic System Description (Self-diagnosis Function) ................................10C-3
Schematic and Routing Diag ram ......................10C-4
Immobilizer Control System Wiring Circuit Diagram...........................................................10C-4
Diagnostic Information an d Procedures ..........10C-5
Immobilizer Control System Check ...................10C-5
Diagnostic Trouble Code (DTC) Check.............10C-5
Diagnostic Trouble Code (DTC) Clearance ......10C-6
Diagnostic Trouble Code (DTC) Table ..............10C-6
Scan Tool Data .................................................10C-7
Immobilizer Indicator Lamp Does Not Come ON with Ignition Switch ON and Engine Stop ..10C-7
Immobilizer Indicator Lamp Remains ON after Engine Starts...................................................10C-8
DTC P1614: Transponder Re sponse Error .......10C-9

Downloaded from www.Manualslib.com manuals search engine 10-ii Table of Contents
DTC P1615: ID Code Does Not Registered (Vehicle equipped with keyless start system
only) ................................................................10C-9
DTC P1616: Different Registration ID Codes (Vehicle equipped with keyless start system
only) ..............................................................10C-10
DTC P1618: CAN Communication Error (Reception Error for Keyless Start Control
Module) (Vehicle equipped with keyless
start system only) ..........................................10C-11
DTC P1621: Immobilizer Communication Line Error ......................................................10C-12
DTC P1622: EEPROM Reading / Writing Error ..............................................................10C-13
DTC P1623: Unregistered Transponder .........10C-13
DTC P1625: Immobilizer An tenna Error..........10C-14
DTC P1636: Immobilizer Information Registration Failure .......................................10C-14
DTC P1638: Immobilizer Information Mismatched ...................................................10C-15
Inspection of Immobilizer Control Module (ICM) and Its Circuit ....... ...............................10C-16
Repair Instructions ........... ...............................10C-18
Immobilizer Control Mo dule (ICM) Removal
and Installation ..............................................10C-18
Registration of the Ignition Key .......................10C-18
Procedure after ECM Replacement ................10C-18
Special Tools and Equipmen t .........................10C-19
Special Tool ....................................................10C-19
Keyless Start System ....... ......................10E-1
General Description ........................................... 10E-1
Keyless Start System Description ..................... 10E-1
Parts and Functions .......................................... 10E-2
Keyless Engine Start Function .......................... 10E-3
Door Lock Function of Keyless Start System .... 10E-4
Operation Area of Remote Controller................ 10E-5
Alarm Function .................................................. 10E-6
CAN Communication System Description......... 10E-6
Schematic and Routing Diagram ...................... 10E-7 Keyless Start System El ectric Wiring Circuit
Diagram .......................................................... 10E-7
Diagnostic Information and Procedures .......... 10E-8 Precautions in Diagnosing Troubles ................. 10E-8
Self-Diagnosis Function .................................... 10E-8
Keyless Start System Diagn osis Introduction ... 10E-8 Keyless Start System Chec
k ............................. 10E-8
Customer Questionnaire (E xample) .................. 10E-9
Key Indicator Lamp Check .............................. 10E-10
DTC Check...................................................... 10E-10
DTC Table ....................................................... 10E-11
DTC Clearance ............................................... 10E-12
Keyless Start System Symp tom Diagnosis ..... 10E-12
Keyless Start System Operation Inspection .... 10E-13
Door Lock Operation (Keyless Start System) . 10E-14
Inspection of Keyless Start Control Module and Its Circuits .............................................. 10E-14
No DTC Detection After Performing DTC Check ............................................................ 10E-18
Key Indicator Lamp Circuit Check (Key indicator lamp doesn’t light when ignition
knob switch is pushed.) ................................. 10E-20
Keyless Start Control Module Power and Ground Circuit Check .................................... 10E-22
DTC No. 11: Communi cation Error with
Steering Lock Unit ......................................... 10E-23
DTC No. 13 / No. 14: Release Signal Error from Steering Lock Unit / Steering Lock Unit
Malfunction .................................................... 10E-24
DTC No. 21 / No. 22: Internal Error of Keyless Start Control Module (EEPROM reading
error) / (EEPROM writing error) ............ ........ 10E-24
DTC No. 31: Lost Commun ication with BCM .. 10E-25
DTC No. 33: Control Module Communication
Bus Off .......................................................... 10E-27
DTC No. 51 / No. 52 / No. 53: Driver Side / Passenger Side / Rear End Door Request
Switch Failure................................................ 10E-28
Repair Instructions ............ .............................. 10E-30
Antennas and Request Switches Removal and Installation .............................................. 10E-30
Front Door (Driver and Passenger Side), Rear End Door Request Switch Inspection............ 10E-31
Steering Lock Unit Removal and Installation .. 10E-31
Steering Lock Unit Inspection ......................... 10E-31
Front Door Lock Switch In spection ................. 10E-31
Keyless Start Control Module Removal and Installation ..................................................... 10E-32
Remote Controller Inspection.......................... 10E-32
Replacement of Remote Controller Battery .... 10E-32
Registration Procedure for Remote Controller
ID Code ......................................................... 10E-33

Downloaded from www.Manualslib.com manuals search engine 10C-1 Immobilizer Control System:
Control Systems
Immobilizer Control System
Precautions
Precautions in Diagnosing TroublesS7RS0BA300001
• 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, keyless start control module (if equipped), ABS / ESP ® control module,
steering angle sensor (ESP ® model), combination
meter and TCM (A/T model) is established by CAN
(Controller Area Network). Therefore, handle CAN
communication lines with care referring to “Precaution
for CAN Communication System in Section 00”. For
CAN communication system, refer to description on
“CAN Communication System Description in Section
1A”.
Precaution in Replacing ECMS7RS0BA300002
• If ECM is replaced with new or used one without immobilizer control function , the engine will not be
started. In case of the above, check if the newly
installed ECM has immobilizer control function.
• 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
S7RS0BA300003
• Do not turn ON ignition sw itch with ignition key in
contact with another one or quite close to another
one. Or, the immobilizer co ntrol system may detect
some abnormal condition and prevent the engine from
starting.
• Do not turn ON ignition switch by using ignition key with any type of metal (1) wrapped its grip or in
contact with it. Or, the i mmobilizer control system may
detect some abnormal condition and prevent the
engine from starting.
I3RH0AA30001-01
1
I3RH0AA30002-01

Downloaded from www.Manualslib.com manuals search engine 10C-3 Immobilizer Control System:
Immobilizer Control System Components LocationS7RS0BA301002
On-Board Diagnostic System Description (Self-diagnosis Function)S7RS0BA301003
ECM diagnoses if there is any trouble with the immobilizer control system. The diagnostic information is stored as the
diagnostic trouble code (DTC) in ECM. To read the di agnostic information, use SUZUKI scan tool referring to
“Diagnostic Trouble Code (DTC) Check”.
With the ignition switch turned ON (but the engine at stop) regardless of the condition of the engine and emission
control system, ECM indicates whether ther e is any trouble with the immobilizer control system or not by either lighting
ON or flashing ON and OFF t he immobilizer indicator lamp.
Immobilizer indicator lamp lights ON:
No trouble exists in the immobilizer control system. (After starting up the engine, the light turns OFF.)
Immobilizer indicator lamp flashes ON and OFF:
There is some trouble in the immo bilizer control system. Its diagnostic information is stored in ECM.
13
4
56
7
2
I6RS0CA30001-01
1. ECM 4. Ignition key with keyless entry system 7. Transponder
2. Immobilizer indicator lamp 5. Ignition key without keyless entry system
3. Immobilizer control module (ICM) 6. Ignition key with keyless start system

Downloaded from www.Manualslib.com manuals search engine 10C-5 Immobilizer Control System:
Diagnostic Information and Procedures
Immobilizer Control System CheckS7RS0BA304001
Diagnostic Trouble Code (DTC) CheckS7RS0BA304002
NOTE
To know how to use SUZUKI scan tool in
detail, refer to its operator’s manual.

Using Scan Tool
1) Turn the ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector (DLC) (1) located under instrument panel at driver’s
seat side.
Special tool
(A): SUZUKI scan tool 3) Turn the ignition switch to ON position.
4) Check if any DTC is stored
in ECM according to the
instructions displayed on SUZUKI scan tool.
5) After completing the check, turn ignition switch to
OFF position, and then di sconnect SUZUKI scan
tool from DLC.
Using Diagnosis Connector (If equipped)
Refer to “Without Using Scan Tool (Vehicle Equipped
with Diagnosis Connector)” under “DTC Check in
Section 1A”.
Step Action Yes No
1 Immobilizer indicator lamp check
Turn ignition switch to ON position using ignition key.
Does it immobilizer in dicator lamp come on? Go to Step 2.
Check if DTC P1636
and/or P1638 are
detected by ECM
referring to “Diagnostic
Trouble Code (DTC)
Check”. If detected, go
to applicable DTC diag.
flow. If not detected, go
to “Immobilizer Indicator
Lamp Does Not Come
ON with Ignition Switch
ON and Engine Stop”.
2 Immobilizer indicator lamp check
Does it immobilizer indicato r lamp flashes on and off
continuously in Step 1? Check ECM for DTC
referring to “Diagnostic
Trouble Code (DTC)
Check”. Then, Go to
applicable DTC diag.
flow.Go to Step 3.
3 Engine start check
Start engine using ignition key.
Does engine start? Go to Step 4.
Perform “Engine and
Emission Control
System Check in
Section 1A”.
4 Immobilizer indicator lamp check
Check Immobilizer indicator la mp remains ON after engine
start.
Does immobilizer indicator la mp remains ON after engine
start? Go to “Immobilizer
Indicator Lamp
Remains ON after
Engine Starts”.
Immobilizer system is
good condition. Then go
to “Keyless Start
System Check in
Section 10E”. (Vehicle
equipped with keyless
start system only)
(A)1
I4RS0BA30003-03

Downloaded from www.Manualslib.com manuals search engine 10C-7 Immobilizer Control System:
Scan Tool DataS7RS0BA304005
Scan Tool Data Definitions
NUMBER OF LEARNT KEY
0 – 4 PCS: The number of the transponder code in the transponder built in the ignition key that is registered with ECM
NOTE
A maximum of four transponder codes can be registered with ECM. Therefore, the maximal value
should be 4.

INPUT YEAR
20**: The year in which the transponder code in the transpon der built in the ignition key is registered with ECM
INPUT MONTH
1 – 12: The month in which the transponder code in the transpond er built in the ignition key is registered with ECM
Immobilizer Indicator Lamp Does Not Come ON with Ignition Switch ON and Engine StopS7RS0BA304006
Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram”.
Circuit Description
When the ignition switch is turned ON, ECM read the code by the coil antenna from ignition key. Then if the code in
transponder in the key match with the one registered with ECM, transmits indication ON signal of immobilizer indicator
lamp to combination meter in order to turn immobilizer indicator lamp on. And then, combination meter turns
immobilizer indicator lamp on. When th e engine starts to run and no malfunction is detected in the system, ECM
transmits immobilizer indi cator lamp indication OFF signal to combination meter in order to turn immobilizer indicator
lamp off. And then, comb ination meter turns immobilizer indicator lamp off, but if a malfunction was or is detected,
immobilizer indicator lamp is flashes ON and OF F, when ignition switch turn to ON position.
Troubleshooting Scan Tool Data Vehicl
e Condition Normal Data
NUMBER OF LEARNT KEY Ignition switch at ON position 0 – 4 INPUT YEAR Ignition switch at ON position 2005 or later
INPUT MONTH Ignition switch at ON position 1 – 12
Step Action YesNo
1 Immobilizer indicator lamp power supply check
1) Turn ignition switch to ON position.
Do other warning lights come ON? Go to Step 2.
Go to Step 4.
2 DTC check of ECM
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check DTC.
Is DTC P1674, P1675, P1678 and/or P1685 detected? Go to applicable DTC
diag. flow.
Go to Step 3.
3 DTC check of BCM
1) Check BCM for DTC referring to “DTC Check in Section
10B”.
Is DTC U1073, U1100 and/or U1144 detected? Go to applicable DTC
diag. flow.
Substitute a known-
good combination meter
and recheck. If
immobilizer indicator
lamp still remains OFF,
substitute a known good
ECM and recheck.