MAP SUZUKI SWIFT 2008 2.G Service Owner's Guide

Downloaded from www.Manualslib.com manuals search engine 1A-194 Engine General Information and Diagnosis:
ECM Power and Ground Circuit CheckS7RS0B1104080
Wiring DiagramC37-3 to E23-1/16 EGR valve
(stepping motor No.2 coil)
20 – 31 Ω —
C37-18 to E23-1/16 EGR valv e (stepping motor No.4 coil)
C37-19 to E23-1/16 EGR valv e (stepping motor No.3 coil)
C37-46 to E23-29 Heater of HO2S-1 2 – 11 Ω—
C37-1 to E23-1/16 No.1 fuel injector 10.8 – 18.2 Ω —
E23-47 to E23-1/16 A/C compressor relay 160 – 240 Ω —
C37-60 to C37-59 Oil control valve 6 – 15 Ω —
E23-45 to E23-1/16 Throttle actuator control relay 160 – 240 Ω —
Terminals
CircuitStandard resistance Condition
E23 C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
BLK/RED
BLK/REDBLK/RED
BLK/YELBLK/YEL
BLK/YEL
GRN
BRN/WHT
12V
5VE23-1
E23-60
E23-16
WHT 2
4
11
6
3
12
13 14
7
1
16
17
89
15
10
5
WHT/REDE23-2
C37-58
C37-15C37-30
BLK/ORN
BLKBLKE23-31BLK
WHT
GRY/REDRED/BLK
ORN
C37-14C37-53
C37-55E23-54
REDE23-55
GRNBRN
BLU
REDYELWHT
E23-35E23-37E23-52
E23-51
E23-34E23-36
E23-50
LT GRN/REDLT GRN/BLKC37-45C37-44
C37-43
C37-54C37-40C37-42C37-41
RED
GRN
WHTBLK
ORN
BLK/WHTE23-29
I6RS0C110039-01
1. Main fuse box 7. Individual circuit fuse box No.1 13. A/C refrigerant pressure sensor (if equipped with A/C)
2. Ignition switch 8. “IG ACC” fuse14. APP sensor (main)
3. Main relay 9. “FI” fuse15. APP sensor (sub)
4. BCM (included in junction block assembly) 10. “RADIO” fuse 16. TP sensor (main)
5. “IG COIL” fuse 11. DLC17. TP sensor (sub)
6. ECM 12. MAP sensor

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-197
10Main relay check
1) Check main relay referring to “Main Relay, Fuel Pump
Relay and Starting Motor Control Relay Inspection in
Section 1C”.
Is main relay in good condition? “BRN/WHT” wire is
open or high resistance
circuit.
Replace main relay.
11 Sensor power source circuit check
1) Connect connectors to ECM with ignition switch turned
OFF.
2) Turn ON ignition switch, measure each voltage between “C37-14”, “E23-35”, “E23-34” and “C37-43” terminals of
ECM connector and vehicle body ground.
Is each voltage 4 – 6 V? ECM power and ground
circuit is in good
condition.
Go to Step 12.
12 Sensor power source circuit check
1) Disconnect connectors from ECM, TP sensor, APP
sensor, MAP sensor and A/C refrigerant pressure sensor
(if equipped with A/C) with i gnition switch turned OFF.
2) Measure each resistance between “C37-14”, “E23-35”, “E23-34” and “C37-43” terminals of ECM connector and
vehicle body ground.
Is each resistance infinity? Check internal short
circuit of TP sensor,
APP sensor, MAP
sensor and/or A/C
refrigerant pressure
sensor (if equipped with
A/C).
“GRY/RED” wire is
shorted to ground
circuit.
Step Action Yes No

Downloaded from www.Manualslib.com manuals search engine 1C-2 Engine Electrical Devices:
MAP Sensor InspectionS7RS0B1306002
1) Remove air cleaner assembly.
2) Disconnect connector from MAP sensor.
3) Remove MAP sensor.
4) Arrange 3 new 1.5 V batteries (2) in series (check that total voltage is 4.5 – 5.0 V) and connect its
positive terminal to “Vin ” terminal of sensor and
negative terminal to “Ground” terminal. Then check
voltage between “Vout” and “Ground”. Also, check if
voltage reduces when vacuum is applied up to 400
mmHg by using vacuum pump (3).
If check result is not satisfactory, replace MAP
sensor (1).
Output voltage (When input voltage is 4.5 – 5.5 V,
ambient temp. 20 – 30 °C, 68 – 86 °F)
5) Install MAP sensor securely.
6) Connect MAP sensor connector securely.
7) Install air cleaner assembly.
Electric Throttle Body Assembly On-Vehicle
Inspection
S7RS0B1306003
WARNING!
Never touch throttle valve with finger while
ignition switch is turned ON and accelerator
pedal is depressed. Otherwise, injury may
result by pinching the finger between throttle
valve and throttle body housing.

CAUTION!
• Do not disassemble electric throttle body assembly.
• Do not expose electric throttle body assembly to excessive shock like a
dropping it. If electric throttle body
assembly has been exposed to excessive
shock, it should be replaced.
• Be careful not to accurate a foreign material (like dust and/ or metallic particle)
to the throttle body housing and/or throttle
valve.
Otherwise, the throttle body assembly is
breaking down by throttle valve accretion.
• Do not apply excessive moving force to throttle valve for thro ttle valve operation
check and/or TP sensor performance
check.
Otherwise, the throttle body assembly is
breaking down by damaging the internal
resinous gear of throttle valve actuator.

NOTE
After replacing electric throttle body
assembly, perform calibration of electric
throttle body assembly referring to “Electric
Throttle Body System Calibration”.

Throttle Valve Visual Check
1) Remove air cleaner outlet hose.
2) Check that there isn’t any foreign matter caught between throttle valve and throttle body housing. If
there is, take it out after removing throttle body
referring to “Electric Th rottle Body Assembly
Removal and Installation in Section 1D” and clean
inside of throttle body thoroughly.
Altitude (Reference) Barometric pressure
Output
voltage
(ft) (m) (mmHg) (kPa) (V)
0 – 2000 0 – 610 760 – 707 100 – 94 3.3 – 4.3 2001 – 5000 611 –
1524 Under 707
over 634 94 – 85 3.0 – 4.1
5001 – 8000 1525 –
2438 Under 634
over 567 85 – 76 2.7 – 3.7
8001 – 10000 2439 –
3048 Under 567
over 526 76 – 70 2.5 – 3.3
I3RM0A130005-01

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-12
Throttle Body and Intake Manifold ComponentsS7RS0B1406005
45
2
15
12 11
13
14 8 10
15
6
3 9
1
(c)
(b)
(a)
(c)
(c)(d)
7
I7RS0B140002-02
1. Intake manifold 6. Breather hose11. PCV valve : 11 N⋅m (1.1 kgf-m, 8.0 lb-ft)
2. Intake manifold gasket 7. EGR pipe 12. PCV valve seal : 8 N⋅m (0.8 kgf-m, 6.0 lb-ft)
3. EVAP canister purge valve hose 8. Gasket 13. PCV hose: 23 N⋅m (2.3 kgf-m, 17.0 lb-ft)
4. Throttle body 9. EVAP canister purge valve 14. To EGR valve : 5 N⋅m (0.5 kgf-m, 4.0 lb-ft)
5. Throttle body gasket 10. MAP sensor15. To cylinder head cover : Do not reuse.

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-14
Throttle Body CleaningS7RS0B1406008
Clean electric throttle body assembly referring to
“Throttle Valve Visual Check” under “Electric Throttle
Body Assembly On-Vehicle Inspection in Section 1C”.
Intake Manifold Removal and InstallationS7RS0B1406009
Removal1) Remove cowl top plate referring to “Cowl Top Components in Section 9K”.
2) Remove throttle body referring to “Electric Throttle Body Assembly Removal and Installation”.
3) Disconnect MAP sensor coupler (1).
4) Disconnect the following hoses: • Brake booster hose (2) from cylinder head cover
• Breather hose (3) from cylinder head cover
• PCV hose (4) from intake manifold
• EVAP canister purge valve hose (5) from intake manifold
5) Remove hose clamp (6) from intake manifold.
6) Remove EGR pipe bolt (7) from EGR valve. 7) Remove stiffener (1) and ground terminal (2) from
intake manifold.
8) Remove intake manifold (1) with EGR pipe (2) from
cylinder head, and then remove their gaskets (3).
9) Remove EGR pipe from intake manifold, if necessary.
6
2 1
3
54
7I6RS0B141008-01
1
2
I6RS0B141010-01
3
2
1
I6RS0B141009-01

Downloaded from www.Manualslib.com manuals search engine 1D-17 Engine Mechanical:
Engine Assembly Removal and InstallationS7RS0B1406011
NOTE
After replacing electric throttle body
assembly, perform calibration of throttle
valve referring to “Electric Throttle Body
System Calibration in Section 1C”.

Removal1) Relieve fuel pressure according to “Fuel Pressure Relief Procedure in Section 1G”.
2) Disconnect negative and pos itive cable at battery.
3) Remove battery and tray.
4) Remove engine hood after disconnecting windshield washer hose.
5) Remove right and left side engine under covers.
6) Remove A/C compressor belt by referring to “Compressor Drive Belt Remo val and Installation in
Section 7B” or “Compressor Drive Belt Removal and
Installation in Section 7B”.
7) Drain engine oil, transaxle oil and coolant.
8) Remove cowl top plate referring to “Cowl Top Components in Section 9K”.
9) Remove air cleaner assembly referring to “Air Cleaner Components”.
10) With hose connected, detach A/C compressor from its bracket (A/C model) referring to “Compressor
Assembly Removal and Installation in Section 7B” or
“Compressor Assembly Removal and Installation in
Section 7B”.
CAUTION!
Suspend removed A/C compressor at a place
where no damage will be caused during
removal and installation of engine assembly.

11) Remove intake manifold rear stiffener (1) from intake manifold and cylinder block. 12) Disconnect the following electric wires:
• MAP sensor (1)
• ECT sensor (2)
•EGR valve (3)
• CMP sensor (4)
• Electric throttle body assembly (5)
• Ignition coil assembly (6)
• Injectors (7)
• Heated oxygen sensor No. 2 (8) and No. 1 (9)
• Oil control valve (10)
• Engine oil pressure switch (11)
• CKP sensor (12)
• Knock sensor (13)
• Back up light switch (14)
• Generator (15)
• Starting motor (16)
• Ground terminal (17) from intake manifold
• Battery ground terminal (18) from exhaust manifold
• Battery ground cable (19) from transaxle
• Magnet clutch switch of A/C compressor (A/C model)
• Each wire harness clamps
• Output shaft speed sensor (VSS) (34) (A/T model)
• Solenoid valve (33) (A/T model)
• Transmission range sensor (32) (A/T model)
• Input shaft speed sensor (31) (A/T model)
13) Remove fuse box from its bracket.
14) Disconnect the following cables: • Gear select control cable (23) (M/T model)
• Gear shift control cable (24) (M/T model)
• A/T select cable (A/T model)
15) Disconnect the following hoses: • Brake booster hose (26) from intake manifold
• Radiator inlet and outlet hoses (20) from each pipe
• Heater inlet and outlet hoses (21) from each pipe
• Fuel feed hoses (22) from fuel feed pipe
• EVAP canister purge valve hose (30) from purge pipe
• A/T fluid cooler hoses (A/T model)
16) With hose connected, detach clutch operating cylinder (25). (M/T model)
CAUTION!
Suspend removed clutch operating cylinder
at a place where no damage will be caused
during removal and installation of engine
assembly.

1
I6RS0B141014-01

Downloaded from www.Manualslib.com manuals search engine Ignition System: 1H-1
Engine
Ignition System
General Description
Ignition System ConstructionS7RS0B1801001
The ignition system is an electronic (distributorless) ignition system. It consists of the parts as described below.
• ECM
It detects the engine and vehicle conditions through the si gnals from the sensors, determines the most suitable
ignition timing and time for electricity to flow to the primar y coil and sends a signal to the ignitor (power unit) in the
ignition coil assembly.
• Ignition coil assembly (including an ignitor)
The ignition coil assembly has a built -in ignitor which turns ON and OFF the current flow to the primary coil
according to the signal from ECM. When the current flow to the primary coil is turned OFF, a high voltage is induced
in the secondary coil.
• High-tension cords and spark plugs
• CMP sensor (Camshaft position sensor) and CKP sensor (Crankshaft position sensor)
Using signals from these sensors, ECM identifies the specific cylinder whose piston is in the compression stroke,
detects the crank angle and adjusts in itial ignition timing automatically.
• TP sensor, ECT sensor, MAP sensor, MAF sensor, IAT sensor, knock sensor and other sensors / switches
Although this ignition system does not have a distributor, it has two ignition coil assemblies (one is for No.1 and No.4
spark plugs and the other is for No.2 and No.3 spark plugs). W hen an ignition signal is sent from ECM to the ignitor in
the ignition coil assembly for No.1 and No.4 spark plugs, a high voltage is induced in the secondary coil and that
passes through the high-tension cords and causes No.1 and No.4 spark plugs to spark simultaneously. Likewise,
when an ignition signal is sent to the ignitor in the ot her ignition coil assembly, No.2 and No.3 spark plugs spark
simultaneously.

Downloaded from www.Manualslib.com manuals search engine 1H-2 Ignition System:
Schematic and Routing Diagram
Ignition System Wiring Circuit DiagramS7RS0B1802001
E23-60
E23-29 12V 5V
5V
E23-1
E23-16
BLK/WHT
BLK/RED
BLK/RED BLK/RED
BLK/YELBLK/YEL
BLK/YEL
GRN
BLKWHT
WHT
BRN/WHT
BLK/ORN
BLK
BLK
C37-20
BLK/RED
PNK
5V
C37-21
BLK/WHT
7
3 4
1
12 5
6
2
11
8
9
10
GRN/YEL
GRN/WHT
C37-6
C37-5 5V
5V
RED/YEL
C37-58
C37-15
C37-30
E23
C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
55
57 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
13
14
15
16
17
50A50A80A
BLK/ORN
E23-31 BLK
I4RS0B180001-01
1. Ignition switch 7. No.1 spark plug 13. Individual circuit fuse box
No.1
2. Main relay 8. No.2 spark plug 14. “IG ACC” fuse
3. Ignition coil assembly for No.1 and No.4 spark plugs 9. No.3 spark plug 15. “FI” fuse
4. Ignition coil assembly for No.2 and No.3 spark plugs 10. No.4 spark plug 16. Junction block assembly
5. CMP sensor 11. Sensed information (MAP sensor, ECT sensor, MAF and IAT
sensor, TP sensor, Knock sensor, VSS, Electric load signal,
Engine start signal) 17. “IG COIL” fuse
6. CKP sensor 12. Battery fuse box

Downloaded from www.Manualslib.com manuals search engine Ignition System: 1H-3
Component Location
Ignition System Components LocationS7RS0B1803001
NOTE
The figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are installed
at the opposite side.

16*
1
2
14
7
5 12 11
410
6
89
3 13*
15
17
I6RS0C180001-01
1. ECM 7. ECT sensor13. Data link connector
2. Ignition coil assembly for No.1 and No.4 spark plugs 8. MAF and IAT sensor 14. Battery fuse box
3. Ignition coil assembly for No.2 and No.3 spark plugs 9. Electric throttle body 15. Relay box
4. CMP sensor 10. Wheel speed sensor (VSS) 16. Junction block assembly
5. CKP sensor 11. High-tension cords
6. MAP sensor 12. Knock sensor

Downloaded from www.Manualslib.com manuals search engine 9A-11 Wiring Systems:
C: Engine harnessNo./Color Connective position No./Color Connective positionC01/GRY IAC valve C22/- Generator #2
C02/GRY IG Coil #1 C23/BLK Starting motor #1
C03/GRY IG Coil #2 C24/- Starting motor #2
C04/GRY Fuel injector #1 C25/GR Y VSS (Vehicle speed sensor)
C05/GRY Fuel injector #2 C26/GRY Knock sensor
C06/GRY Fuel injector #3 C27/BLU (A/
T) Input shaft speed sensor
C07/GRY Fuel injector #4 C28/GRY
(A/T) Trans axle range sensor
C08/BLK or GRY CMP sensor C29/GRY
(A/T) Shift solenoid
C09/BLK ECT sensor C30/BLK
(M/T) Back-up light switch
C10/GRY EGR stepper motor C31/- Main fuse box C11/BLK Throttle position sensor C32/GRY
(IF EQPD) Current sensor
C12/BLK MAP sensor C33/- Main fuse box
C13/BLK MAF sensor C34/N (A/T) TCM
C14/BLK EVAP canister purge valve C35/N (A/T) TCM
C15/GRY Heated oxygen sensor #1 C36/N Main harness (To E24)
C16/GRN Heated oxygen sensor #2 C37/GRY ECM C17/BLK A/C compressor C38/- Weld splice C18/N Oil pressure switch C39/- Weld splice
C19/BLU VVT solenoid C40/- Weld splice
C20/GRY CKP sensor C41/- Weld splice
C21/GRY or BLK Generator #1