2000 SUZUKI SWIFT RG413 Service Workshop Manual

6E1-4 ENGINE AND EMISSION CONTROL SYSTEM
1110 97
8
1714
15
12
18 13 2651
327 28 22 29 41
35
34
19
202142
3626 2523 16
33 2432
31-1
31-2
31-3
3130
40
39
38
37
4

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

6E1-6 ENGINE AND EMISSION CONTROL SYSTEM
FUEL DELIVERY SYSTEM
The fuel system consists of fuel tank (1), fuel pump (2) (with built-in fuel filter (3) and fuel pressure regulator (4)),
delivery pipe (5), injectors (6) and fuel feed line (7).
The fuel (8) in the fuel tank (1) is pumped up by the fuel pump (2), sent into delivery pipe (5) and injected by the
injectors (6).
As the fuel pump assembly is equipped with built-in fuel filter (3) and fuel pressure regulator (4), the fuel (8) is fil-
tered and its pressure is regulated before being sent to the delivery pipe (5).
The excess fuel from fuel pressure regulation process is returned back (9) into the fuel tank.
Also, fuel vapor generated in fuel tank is led through the fuel vapor line (10) into the EVAP canister (12).
FUEL PUMP
An in-tank type electric pump has been adopted for the fuel pump
(1). Incorporated in the pump assembly are;
Tank pressure control valve (2) which keeps the pressure in
the fuel tank constant, and prevents the fuel from spouting
and tank itself from being deformed.
Relief valve (3) which prevents the pressure in tank from ris-
ing excessively.
Fuel cut valve (4) which closes as the float rises so that the
fuel will not enter the canister when the fuel level in the tank
rises high depending on the fuel level in the tank and the
vehicle tilt angle.
Also, a fuel filter (5) and a fuel pressure regulator (6) are included
and a fuel level gauge (7) is attached.
Addition of the fuel pressure regulator (6) to the fuel pump makes
it possible to maintain the fuel pressure at constant level and
ECM controls compensation for variation in the intake manifold
pressure.
11. Intake manifold

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

ENGINE AND EMISSION CONTROL SYSTEM 6E1-11
For TYPE B (Refer to NOTE in “ECM INPUT/OUTPUT CIRCUIT DIAGRAM” for applicable model.)
37
54
BLK
C42-18
C42-29
C42-17
C42-28
C42-13
17
2+B
1
6
8
5
IG1
IG1
14C42-9
C42-11
C42-23
C42-22
C42-16

C42-26
C42-14
C42-15
C42-10
C42-25
C42-13
C42-7
G02-1
G02-14
G02-16
G02-6
G02-15
G02-5
G02-2
C41-21
C41-17
G02-9
C41-8
C41-14 C41-15
G02-11C42-21
C42-31
C42-8
C42-6
C42-4
C41-19
C41-18
C41-9
C41-22
G02-13
C41-16
C42-30
C41-1
C41-10
C41-6
C41-5
C41-20
C42-1 C42-2
C42-3
C42-12 C41-11
C41-73E01
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
52
+BB
GND
: 56 : 57
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
WHT/BLK
ORN
BRN
EPS, AT, ETC
GRN/RED
PPL
WHT/BLK
GRN/WHT
RED/YEL
PPL/WHT
PNK/BLU
WHT/GRN
BLU
B/W
RED
42
46 43
44 36
DN
TS
GND MON
PPL/WHT 38
G02-7
YEL
BLK/RED
GRY
GRN/ORN

BRN/YEL
51
23
13WHT
19
ORN
: 5V
: 12V
BLU/WHT
BLK/WHT
BLU/WHT
BLK/YEL
BLK/RED
BLK/ORN
WHT/RED