immobilizer SUZUKI SWIFT 2000 1.G RG413 Service Owner's Manual

ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-41
TERMINAL
NO.CIRCUIT NORMAL
VOLTAGECONDITION
C411 A/C compressor clutch 0 V Ignition switch ON
2–––
3–––
4–––
5 Power source 10 – 14 V Ignition switch ON
6 Power source 10 – 14 V Ignition switch ON
7 Power source for back-up 10 – 14V Anytime
8 Monitor output (Vehicle without immobi-
lizer indicator lamp)––
9 Radiator fan control relay 10 – 14 V Ignition switch ON and Engine
coolant temp. : 100°C (212°F)or
lower
0 – 1 V Ignition switch ON and Engine
coolant temp. : 102.5°C (216.5°F)
or higher
10 Main relay 10 – 14 V Ignition switch OFF
0.4 – 1.5 V Ignition switch ON
11 Ignition switch 10 – 14 V Ignition switch ON
12 Blank––
13–––
14 Diag. Switch terminal (Vehicle without
immobilizer indicator lamp)4 – 6 V Ignition switch ON
15 Test switch terminal (Vehicle without
immobilizer indicator lamp)4 – 6 V Ignition switch ON
16 A/C (input) signal 10 – 14 V Ignition switch ON
A/C switch OFF
0 – 2 V Ignition switch ON
A/C switch ON
17 Electric load signal (+) 0 V Ignition switch ON
Small light and rear defogger OFF
10 – 14 V Ignition switch ON
Small light and rear defogger OFF
18 Radiator fan control relay 10 – 14 V Ignition switch ON
Engine coolant temp. : 9.5°C or
lower (203°F)
0 – 1 V Ignition switch ON
Engine coolant temp. : 97.5°C
(208°F) or higher
19 Fuel pump relay 0 – 1 V For 2 seconds after ignition switch
ON
10 – 14 V After the above time
20 Engine start switch
(Engine start signal)6 – 12 V While engine cranking
0 V Other than above

ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-47
TABLE A-2 MALFUNCTION INDICATOR LAMP CIRCUIT CHECK - LAMP
REMAINS “ON” AFTER ENGINE STARTS
WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to table A-1.
INSPECTION
3 MIL Circuit Check
1) Turn ignition switch OFF and disconnect
connectors from ECM.
2) Check for proper connection to ECM at ter-
minal G02-1 (Case of TYPE A. See NOTE)
or G02-9 (Case of TYPE B. See NOTE).
3) If OK, then using service wire, ground termi-
nal G02-1 (Case of TYPE A. See NOTE) or
G02-9 (Case of TYPE B. See NOTE) in con-
nector disconnected.
Does MIL turn on at ignition switch ON?Substitute a known-good
ECM and recheck.Bulb burned out or “PPL/
YEL” (Case of TYPE A.
See NOTE) or “PPL/
WHT” (Case of TYPE B.
See NOTE) wire circuit
open.
Test switch terminal cir-
cuit grounded (vehicle
without immobilizer indi-
cator lamp) Step Action Yes No
NOTE:
For TYPE A and TYPE B, refer to NOTE in “ECM VOLTAGE VALUES TABLE” for applicable model.
Step Action Yes No
1 Diagnostic Trouble Code (DTC) Check
1) Check DTC referring to DTC CHECK
section.
Is there any DTC(s)?Go to Step 2 of ENGINE DIAG.
FLOW TABLE.Go to Step 2.
2DTC Check
1) Start engine and recheck DTC while
engine running.
Is there any DTC(s)?Go to Step 3.
3 MIL Circuit Check
1) Turn OFF ignition switch.
2) Disconnect connectors from ECM.
Does MIL turn ON at ignition switch ON?“PPL/YEL” (Case of TYPE A.
See NOTE) or “PPL/WHT”
(Case of TYPE B. See NOTE)
wire circuit shorted to ground.Substitute a known-good
ECM and recheck.

6-48 ENGINE GENERAL INFORMATION AND DIAGNOSIS
TABLE A-3 MIL CHECK - MIL FLASHES AT IGNITION SWITCH ON (VEHICLE
WITHOUT IMMOBILIZER INDICATOR LAMP)
WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to TABLE A-1.
INSPECTION
TABLE A-4 MIL CHECK - MIL DOES NOT FLASH OR JUST REMAINS ON EVEN
WITH GROUNDING DIAGNOSIS SWITCH TERMINAL (VEHICLE WITHOUT
IMMOBILIZER INDICATOR LAMP)
WIRING DIAGRAM / CIRCUIT DESCRIPTION
Refer to TABLE A-1.
INSPECTION
NOTE:
For TYPE A and TYPE B, refer to NOTE in “ECM VOLTAGE VALUES TABLE” for applicable model.
Step Action Yes No
1 MIL Flashing Pattern Check
1) Turn ignition switch ON.
Does lamp flashing pattern indicate diag-
nostic trouble code?Go to Step 2. Substitute a known-good ECM
and recheck.
2 Diag. Switch Circuit Check
Is diag. switch terminal connected to
ground via service wire?System is in good condi-
tion.“PPL/WHT” circuit for monitor
connector shorted to ground. If
circuit is OK substitute a known-
good ECM and recheck.
NOTE:
For TYPE A and TYPE B, refer to NOTE in “ECM VOLTAGE VALUES TABLE” for applicable model.
Step Action Yes No
1 MIL Circuit Check
1) Turn ignition switch OFF and disconnect connec-
tors from ECM.
Does MIL turn ON at ignition switch ON?“PPL/YEL” (Case of TYPE A.
See NOTE) or “PPL/WHT”
(Case of TYPE B. See NOTE)
circuit shorted to ground.Go to Step 2.
2 ECM/PCM Connection Check
1) Turn ignition switch OFF.
Is connector (C42-27 (Case of TYPE A. See NOTE)
or C41-14 (Case of TYPE B. See NOTE) connection)
connected to ECM/PCM properly?Go to Step 3. Poor connector connec-
tion.
3 Diag. Switch Terminal Circuit Check
1) Connect connectors to ECM.
2) Using service wire, ground C42-27 (Case of
TYPE A. See NOTE) or C41-14 (Case of TYPE
B. See NOTE) connection) terminal with connec-
tors connected to ECM.
3) Turn ignition switch ON.
Does MIL flash?“PPL/WHT” or “BLK” circuit in
monitor connector is open.Substitute a known-good
ECM and recheck.

ENGINE AND EMISSION CONTROL SYSTEM 6E1-1
6F1
6F2
6G
6H
6E1
7A
7A1
7B1
7C1
7D
7E
7F
8A
8B
8C
8D
8E
9
10
10A
10B
SECTION 6E1
ENGINE AND EMISSION CONTROL SYSTEM
CONTENTS
GENERAL DESCRIPTION ............................ 6E1-2
AIR INTAKE SYSTEM ............................... 6E1-5
FUEL DELIVERY SYSTEM ....................... 6E1-6
FUEL PUMP ........................................... 6E1-6
ELECTRONIC CONTROL SYSTEM .......... 6E1-7
ENGINE & EMISSION CONTROL
INPUT/OUTPUT TABLE ........................ 6E1-8
ECM INPUT/OUTPUT CIRCUIT
DIAGRAM............................................... 6E1-9
ECM TERMINAL ARRANGEMENT
TABLE .................................................. 6E1-13
ON-VEHICLE SERVICE .............................. 6E1-15
ACCELERATOR CABLE
ADJUSTMENT ..................................... 6E1-15
IDLE SPEED/IDLE AIR CONTROL
(IAC) DUTY INSPECTION ................... 6E1-15
IDLE MIXTURE INSPECTION /
ADJUSTMENT (VEHICLE WITHOUT
HEATED OXYGEN SENSOR) ............. 6E1-17
AIR INTAKE SYSTEM ............................. 6E1-18
THROTTLE BODY ............................... 6E1-18IDLE AIR CONTROL VALVE (IAC
VALVE) ................................................ 6E1-20
FUEL DELIVERY SYSTEM ..................... 6E1-21
FUEL PRESSURE INSPECTION ........ 6E1-21
FUEL PUMP WITH PRESSURE
REGULATOR ....................................... 6E1-22
FUEL INJECTOR ................................. 6E1-23
ELECTRONIC CONTROL SYSTEM ....... 6E1-27
ENGINE CONTROL MODULE
(ECM) ................................................... 6E1-27
MANIFOLD ABSOLUTE PRESSURE
SENSOR (MAP SENSOR)................... 6E1-27
THROTTLE POSITION SENSOR (TP
SENSOR) ............................................. 6E1-28
INTAKE AIR TEMPERATURE
SENSOR (IAT SENSOR) ..................... 6E1-29
ENGINE COOLANT TEMPERATURE
SENSOR (ECT SENSOR) ................... 6E1-30
HEATED OXYGEN SENSOR (HO2S-1
AND HO2S-2) ...................................... 6E1-31
CAMSHAFT POSITION SENSOR ....... 6E1-32 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
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” 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 following system (parts) are used in the particular vehicle or not depends on vehicle
specifications. Be sure to bear this in mind when performing service work.
EGR valve
Heated oxygen sensor(s) or CO adjusting resistor
Three way catalytic converter
Immobilizer indicator lamp
Knock sensor

ENGINE AND EMISSION CONTROL SYSTEM 6E1-5
AIR INTAKE SYSTEM
The main components of the air intake system are air cleaner (1), air cleaner outlet hose (2), throttle body (3),
idle air control valve (4) and intake manifold (5).
The air (by the amount corresponding to the throttle valve (6) opening and engine speed) is filtered by the air
cleaner (1), passes through the throttle body (3), is distributed by the intake manifold (5) and finally drawn into
each combustion chamber.
When the idle air control valve (4) is opened according to the signal from ECM, the air (7) bypasses the throttle
valve (6) through bypass passage and is finally drawn into the intake manifold (5).
1. Air Cleaner 16. Immobilizer indicator lamp (if equipped) 31. Monitor connector (vehicle without immobi-
lizer indicator lamp)
2. EVAP canister purge valve 17. Knock sensor (if equipped) 31-1. Diagnosis switch terminal (vehicle without
immobilizer indicator lamp)
3. IAT sensor 18. ECT sensor 31-2. Test switch terminal (vehicle without immobi-
lizer indicator lamp)
4. TP sensor 19. CMP sensor 31-3. Duty output terminal (vehicle without immobi-
lizer indicator lamp)
5. IAC valve 20. CKP sensor 32. Stop lamp
6. MAP sensor 21. VSS 33. Stop lamp switch
7. EGR valve (if equipped) 22. Radiation fan 34. ECM
8. EVAP canister 23. Malfunction indicator lamp in combination meter 35. Barometric pressure sensor (if equipped)
9. Tank pressure control valve (built-in fuel pump) 24. Park/Neutral position switch (A/T) 36. Battery
10. Fuel pump (with pressure regulator) 25. Ignition switch 37. CO adjusting resistor (if equipped)
11. Fuel level sensor (vehicle with immobilizer indi-
cator lamp)26. Starter magnetic switch 38. A/C compressor clutch (if equipped)
12. Ignition coil assembly 27. TCM 39. A/C switch (if equipped)
13. Fuel injector 28. Transmission range switch (A/T) 40. A/C evaporator temp. sensor (if equipped)
14. Heated Oxygen Sensor (HO2S)-1
(if equipped)29. DLC 41. Immobilizer control module (if equipped)
15. Heated Oxygen Sensor (HO2S)-2
(if equipped)30. Electric load 42. Main relay
54
2
1
6
3
7

ENGINE AND EMISSION CONTROL SYSTEM 6E1-7
ELECTRONIC CONTROL SYSTEM
The electronic control system consists of 1) various sensors which detect the state of engine and driving condi-
tions, 2) ECM which controls various devices according to the signals from the sensors and 3) various controlled
devices.
Functionally, it is divided into nine sub systems :
Fuel injection control system
Idle speed control system
Fuel pump control system
A/C control system (if equipped)
Radiator fan control system
EGR system (if equipped)
Evaporative emission control system
Oxygen sensor heater control system (if equipped)
Ignition control system
Also, with A/T model, ECM sends throttle valve opening signal and coolant temp. signal to transmission control
module to control A/T.
INFORMATION SENSORS CONTROL DEVICES OTHERS
1. MAP sensor a : Fuel injector A : ECM
2. TP sensor b : EVAP canister purge valve B : Main relay
3. IAT sensor c : Fuel pump relay C : EVAP canister
4. ECT sensor d : EGR valve (step motor) (if equipped) D : Monitor connector
5. Heated oxygen sensor-1 (if equipped) e : Malfunction indicator lamp E : Data link connector
5-1. Heated oxygen sensor-2 (if equipped) f : Ignition coil assembly F : A/C EVAP thermistor (if equipped)
6. VSS g : Radiator fan control relay G : TCM (A/T)
7. Transmission range switch (A/T) h : IAC valve
8. Battery i : Immobilizer indicator lamp
9. CMP sensor
10. CKP sensor
11. Fuel level sensor (gauge) (in fuel tank)
12. Stop lamp switch
13. Knock sensor (if equipped)

6E1-8 ENGINE AND EMISSION CONTROL SYSTEM
ENGINE & EMISSION CONTROL INPUT/OUTPUT TABLE
INPUTOUTPUT
ELECTRIC CONTROL DEVICE
FUEL LEVEL SENSOR (VEHICLE WITH IMMOBILIZER INDICATOR LAMP) For detecting fuel level DIAGNOSIS SWITCH (VEHICLE WITHOUT IMMOBILIZER INDICATOR LAMP)
BAROMETRIC PRESSURE SENSOR (VEHICLE WITH EGR VALVE)
STOP LAMP SWITCH
START SWITCH
IGNITION SWITCH
LIGHTING SWITCH
REAR DEFOGGER SWITCH
BLOWER SWITCH
A/C SWITCH
A/C EVAP TEMP. SENSOR
VSS
HEATED OXYGEN SENSOR-1
(VEHICLE WITH EGR VALVE)
HEATED OXYGEN SENSOR-2
(VEHICLE WITH IMMOBILIZER INDICATOR LAMP)For detecting deterioration of
three way catalytic convertor
IAT SENSOR
ECT SENSOR
TP SENSOR
MAP SENSOR
CMP SENSOR
CKP SENSOR
TEST SWITCH TERMINAL
(VEHICLE WITHOUT IMMOBILIZER INDICATOR LAMP)
KNOCK SENSOR (VEHICLE WITH EGR VALVE)
FUEL PUMP RELAY
FUEL INJECTOR
HO2S HEATER
IAC VALVE
IGNITION COIL WITH IGNITER
EGR VALVE (IF EQUIPPED)
EVAP CANISTER PURGE VALVE
A/C COMPRESSOR CLUTCH
RADIATOR FAN RELAY
MIL
MAIN RELAY
TRANSMISSION CONTROL MODULE SIGNAL FROM SENSOR, SWITCH AND CONTROL MODULE

ENGINE AND EMISSION CONTROL SYSTEM 6E1-9
ECM INPUT/OUTPUT CIRCUIT DIAGRAM
For TYPE A (See NOTE)
37
C41-23
G02-12 IG1PNK 5554
BLK
C41-2
C41-9
C41-8
C41-17C42-13
17
2+B
1
6
8
5
IG1
IG1
14C42-9
C42-11
C42-23
C42-22
C41-3
C42-26
C42-14
C42-15
C42-10
C42-12
C42-13
C42-7
C42-30
C42-29
G02-14
G02-10
G02-16
C41-14
C41-21
C42-5
C41-15
G02-9
C42-17
G02-1
C42-28
C42-27 C42-16
G02-5C42-21
C42-31
C42-8
C42-6
C42-4
C41-19
C41-18
G02-3
G02-2
G02-13
C41-16
C42-18
C41-1
C41-10
C41-6
C41-5
C41-7
C42-1 C42-2
C42-3
C42-25G02-6
G02-173E01
E01 C42-20
C42-19L+
L–
H–H+ 25
26
27
28
29
30
35
31
No.1
No.2
No.3 32
33
33
33 34
IG2
IG2
+B
+B
IG1
+BB
IG11
IG2 IG1
21
47
49
IG
METERIG1
ST
15IG2
48
53
E11+
– 2218
PRND2L
IG11
IG11
+BB
IG145 41
ABS
TCM
SDM
24IG1
+BB50
16
E11
E1194
7
12
+BB
GND
: 56 : 57
IG1
E11 10
11
+B RED/YELBLU/YEL
BLU/WHT
BLU/RED
BLU/ORN
GRN/RED
BLU/BLK
PNK
BLU
GRN/RED
GRN/YEL39
40 GRN/WHT
PPL
YEL/GRN PNK/BLU
PNK/GRN
PNK/BLK
BLK/WHT
WHT/RED
BRN/WHT
BLK/RED
BLK/RED
BLK/YEL
BLK/ORNBLK
BLK/ORN YEL/BLK
GRY/RED
GRY/BLU
RED/WHT
GRY/WHT
LT GRN
LT GRN/BLK
ORN
RED
WHT
RED/BLU
BRN
GRN/BLK
WHT/BLK
ORN
BRN
EPS, AT, ETC
LT BLU
PPL
WHT/BLK
GRN/WHT
RED/BLK
PPL/YEL
PNK/BLU
WHT/GRN
BLU
B/W
B/W
BLK/WHT
RED
42
46 43
44 36
DN
TSGND MONPPL/WHT 38
G02-7
YEL
BLK/RED
GRN
GRN/ORN

BRN/YEL
51
2352
C41-22YEL/RED 13WHT
19
ORN
: 5V
: 12V
BLU/WHT
BLK/WHT
BLU/WHT
BLK/YEL
BLK/RED
BLK/ORN
WHT/RED
RED/YEL
NOTE:
Type A is other than follows.
Type B is right hand steering vehicle equipped with fasten seat belt light and immobilizer control sys-
tem.

6E1-10 ENGINE AND EMISSION CONTROL SYSTEM
1. CKP sensor 20. Blank 39. Ignition coil assembly (for No.1 and No.4 spark plugs)
2. CMP sensor 21. A/C switch 40. Ignition coil assembly (for No.2 and No.3 spark plugs)
3. VSS 22. A/C pressure switch 41. Stop lamp switch
4. MAP sensor 23. Immobilizer control module 42. Stop lamp
5. Knock sensor (if equipped) 24. Data link connector 43. Lighting switch
6. TP sensor 25. Injector No.1 44. Position lamp
7. ECT sensor 26. Injector No.2 45. Rear defogger switch
8. IAT sensor 27. Injector No.3 46. Rear defogger
9. Heated oxygen sensor-1 (if equipped) 28. Injector No.4 47. A/C compressor clutch (if equipped)
10. Heated oxygen sensor-2 (if equipped) 29. IAC valve 48. Ignition switch
11. A/C evaporator temp. sensor 30. EVAP canister purge valve 49. Main relay
12. Combination meter 31. Fuel pump relay 50. Transmission range switch (A/T)
13. Fuel level sensor (vehicle with immobilizer
indicator lamp)32. Fuel pump 51. Starting motor
14. TCM 33. Radiator fan relay 52. Shield wire
15. Transmission range switch 34. Radiator fan motor 53. Main fuse
16. ABS control module 35. EGR valve (if equipped) 54. Barometric pressure sensor
17. CO adjusting resistor (if equipped) 36. Malfunction indicator lamp 55. Immobilizer indicator lamp (if equipped)
18. Heater fan motor 37. Tachometer 56. Engine ground
19. Heater fan switch 38. Monitor connector (vehicle without immo-
bilizer indicator lamp)57. Body ground

6E1-12 ENGINE AND EMISSION CONTROL SYSTEM
1. CKP sensor 20. Blank 39. Ignition coil assembly (for No.1 and No.4 spark plugs)
2. CMP sensor 21. A/C switch 40. Ignition coil assembly (for No.2 and No.3 spark plugs)
3. VSS 22. A/C pressure switch 41. Stop lamp switch
4. MAP sensor 23. Immobilizer control module 42. Stop lamp
5. Knock sensor (if equipped) 24. Data link connector 43. Lighting switch
6. TP sensor 25. Injector No.1 44. Position lamp
7. ECT sensor 26. Injector No.2 45. Rear defogger switch
8. IAT sensor 27. Injector No.3 46. Rear defogger
9. Heated oxygen sensor-1 (if equipped) 28. Injector No.4 47. A/C compressor clutch (if equipped)
10. Blank 29. IAC valve 48. Ignition switch
11. A/C evaporator temp. sensor 30. EVAP canister purge valve 49. Main relay
12. Combination meter 31. Fuel pump relay 50. Transmission range switch (A/T)
13. Fuel level sensor (vehicle with immobilizer
indicator lamp)32. Fuel pump 51. Starting motor
14. TCM 33. Radiator fan relay 52. Shield wire
15. Transmission range switch 34. Radiator fan motor 53. Main fuse
16. ABS control module 35. EGR valve (if equipped) 54. Barometric pressure sensor
17. CO adjusting resistor (if equipped) 36. Malfunction indicator lamp 55. Immobilizer indicator lamp (if equipped)
18. Heater fan motor 37. Tachometer 56. Engine ground
19. Heater fan switch 38. Monitor connector (vehicle without immo-
bilizer indicator lamp)57. Body ground