Throttle SUZUKI SWIFT 2005 2.G Service Workshop Manual

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Connector “C34”Terminal Wire color Circuit Standard
voltage Condition
1 BLK Ground 0 – 1 V Ignition switch ON
2 LT GRN/
BLK Pressure control
solenoid valve (–)
0.6 – 1.0 V Ignition switch ON
3WHT/BLK TCC pressure control
solenoid valve (–) 0.6 – 1.0 V Ignition switch ON
4GRY Pressure control
solenoid valve (+) *0 – 0.6 V
↑↓
10 – 14 V
(“Reference waveform No. 1: ”) Engine running at idling.
(Output signal is duty pulse. Duty ratio varies
depending on throttle valve opening.)
5WHT/BLU TCC pressure control
solenoid valve (+) *0 – 0.6 V
↑↓
10 – 14 V
(“Reference waveform No. 2: ”) Engine running at idling.
(Output signal is duty pulse. Duty ratio varies
depending on torque converter clutch operating
condition.)
6 YEL/BLK Power source 10 – 14 V Ignition switch ON
7WHT CAN communication
line (Low) *2.5 – 3.6 V
↑↓
1.6 – 2.5 V
(“Reference waveform No. 3: ”) Engine running at idling with after warming up.
(CAN communication signal is pulse. Pulse signal
frequency varies depending on engine condition.))
8— — — —
9— — — —
10 — —— —
11 LT G R N Transmission fluid
temperature sensor (+) 2.9 – 3.1 V Ignition switch ON, fluid temperature is 20
°C (68 °F)
0.3 – 0.5 V Ignition switch ON, fluid temperature is 100 °C (212 °F)
12 ORN Transmission fluid
temperature sensor (–) 0 – 1 V Ignition switch ON
13 — —— —
14 BLU/BLK Timing solenoid valv e 0 – 1 V Ignition switch ON
15 BLK/YEL Shift solenoid valve-B
(No.2) 9 – 14 V Ignition switch ON, select lever in “P” range
16 BRN Shift solenoid valve-A
(No.1) 9 – 14 V Ignition switch ON, select lever in “P” range
17 RED CAN communication
line (High) *2.5 – 3.6 V
↑↓
1.6 – 2.5 V
(“Reference waveform No. 3: ”) Engine running at idling with after warming up.
(CAN communication signal is pulse. Pulse signal
frequency varies depending on engine condition.)
18 — —— —
19 — —— —
20 — —— —
21 — —— —
22 — —— —
23 BLK Ground 0 – 1 V Ignition switch ON
24 WHT/RED Power source
for back-
up 10 – 14 V Constantly

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A/C System Inspection at ECMS7RS0B7214004
Voltage Check
When checking voltage at ECM connector terminals related to A/C system, refer to “DTC P2101: Throttle Actuator
Control Motor Circuit Range / Performance in Section 1A”.
0.40 – 0.45
(4.0 – 4.5)
(57 – 64)
2.0 – 2.5
(20 – 25)
(285 – 355) High pressure reading on
both low and high
pressure sides.
Overcharged A/C
system.
Adjust refrigerant to
specified amount.
Faulty condenser
cooling operation. Clean condenser.
Faulty radiator cooling
fan operation. Inspect and repair
radiator cooling fan.
High pressure reading on
both low and high
pressure sides.
Low pressure side tubing
is not cold when touched. Presence of air in A/C
system
(Improperly
evacuated).Replace receiver/
dryer.
Inspect quantity of
compressor oil and
presence of
contaminants in oil.
Evacuate system and
recharge with fresh
refrigerant.
0.45 – 0.55
(4.5 – 5.5)
(64 – 78) High pressure reading on
both low and high
pressure sides.
Large amount of frost or
dew on the low pressure
side tubing.Faulty expansion
valve.
Refrigerant flow is not
regulated properly.
Replace expansion
valve.
Condition
Possible cause Correction
Manifold gauge MPa (kg/cm
2) (psi)
Detail
Lo Hi

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A/C System Performance InspectionS7RS0B7224027
Refer to “A/C System Performance Inspection”.
A/C System Inspection at ECMS7RS0B7224028
Voltage Check
ECM and its circuits can be checked by measuring voltage with special tool connected.
CAUTION!
• ECM connectors are waterproofed. Each terminal of the ECM connectors is sealed up with the
grommet. Therefore, do not measure circuit voltage and resistance by inserting the tester’s probe
into the sealed terminal at the harness side. Or, ECM and its circuits may be damaged by water.
• ECM cannot be checked by itself. It is strictly prohibited to connect voltmeter or ohmmeter to ECM with couplers disconnected from ECM.

1) Remove ECM (1) from its bracket by referring to “Electric Throttle Body System Calibration in Section 1C”.
2) Connect special tool (2) between ECM and ECM connectors securely.
3) Check voltage at each terminal.
NOTE
As each terminal voltage is affected by the battery voltage, confirm that the battery voltage is 11 V or
more when ignition sw itch is ON position.

Terminal arrangement of ECM coupler (Viewed from harness side)
1
2
I5RS0A722018-01
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
I4RS0A720010-01

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ECM Voltage Values Table for Relation of A/C Control
Repair Instructions
Operation Procedure for Refrigerant ChargeS7RS0B7226001
Refer to “Operation Procedure for Refrigerant Charge”.Terminal Wire Color Circuit Normal Value Condition
C37-14 GRY/RED Output of 5 V power
source 4.5 – 5.5 V Ignition switch turned ON
C37-15 BLK Ground for ECM Below 0.3 V Ignition switch turned ON
C37-24 LT GRN Engine coolant temp.
(ETC) sensor signal 3.3 – 3.8 V Ignition switch turned ON, ECT at 0
°C (32 ° F)
1.38 – 1.72 V Ignition switch turned ON, ECT at 50 °C (122 °F)
C37-30 BLK Ground for ECM Below 0.3 V Ignition switch turned ON
C37-55 ORN Ground for sensors Below 0.3 V Ignition switch turned ON
C37-58 BLK/ORN Ground for ECM Below 0.3 V Ignition switch turned ON E23-1 BLK/RED Main power supply 10 – 14 V Ignition switch turned ON
E23-3 RED CAN (high)
communication line
(active high signal)
for BCM and
combination meterRefer to “DTC P2101: Throttle Actu
ator Control Motor Circuit Range /
Performance in Section 1A”
E23-16 BLK/RED Main power supply 10 – 14 V Ignition switch turned ON
E23-18 WHT CAN (low)
communication line
(active low signal) for
BCM and
combination meterRefer to “DTC P2101: Throttle Actu
ator Control Motor Circuit Range /
Performance in Section 1A”
E23-19 BLU/WHT Electric load signal
for blower motor 10 – 14 V
Ignition switch turned ON, blower speed selector
OFF or between 1st and 5th position
0 – 1 V Ignition switch turned ON, blower speed selector
between 6th and HIGH position
E23-46 LT GRN Radiator fan relay
No.1 output 10 – 14 V
Ignition switch turned ON, engine coolant temp.:
below 95
°C (203 ° F), or A/C refrigerant pressure:
below 600 kPa (87 psi).
0 – 2 V Ignition switch turned ON, engine coolant temp.:
97.5
°C (207.5 °F) or higher, or A/C refrigerant
pressure: 1100 kPa (159.5 psi) or higher.
E23-47 GRY A/C compressor relay
output 10 – 14 V Engine running, A/C request signal high input
0 – 1 V Engine running, A/C request signal low input
E23-48 GRN Radiator fan relay
No.2 and No.3 output 10 – 14 V
Ignition switch turned ON, engine coolant temp.:
below 100
°C (212 °F), or A/C refrigerant
pressure: below 1200 kPa (174 psi).
0 – 2 V Ignition switch turned ON, engine coolant temp.:
102.5
°C (216.5 ° F) or higher, or A/C refrigerant
pressure: 1500 kPa (217.5 psi) or higher.
E23-55 RED A/C refrigerant
pressure sensor
signal 1.46 – 1.71 V
Engine running, A/C refrigerant pressure at 0.8
MPa (8.0 kg/cm
2) (A/C refrigerant pressure
measured by manifold gauge)
2.55 – 2.80 V Engine running, A/C refrigerant pressure at 1.6
MPa (16.0 kg/cm
2) (A/C refrigerant pressure
measured by manifold gauge)
E23-60 BRN/WHT Main power supply
relay output 10 – 14 V Ignition switch turned OFF
0 – 2 V Ignition switch turned ON

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

Downloaded from www.Manualslib.com manuals search engine 9A-13 Wiring Systems:
C: Engine harness
D: Oil pressure switch wireNo./Color Connective position No./Color Connective position
C02/GRY IG Coil #1 C24/- Starting motor #2
C03/GRY IG Coil #2 C23/BLK Starting motor #1
C04/GRY Fuel injector #1 C25/GRY
(A/T) VSS (Vehicle speed sensor)
C05/GRY Fuel injector #2 C26/GRY Knock shaft speed 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 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 C12/BLK MAP sensor C32/GRY Current sensor
C13/BLK MAF sensor C33/- Main fuse box
C14/BLK EVAP canister purge valve C34/N (A/T) TCM
C15/BLK Heated oxygen sensor #1 C35/N (A/T) TCM
C16/GRN Heated oxygen sensor #2 C36/N Main harness (To E24) C17/BLK A/C compressor C37/GRY ECM C18/N Oil pressure switch wire (To D02) C38/- Weld splice
C19/BLU VVT solenoid C39/- Weld splice
C20/GRY CKP sensor C40/- Weld splice C21/BLK Generator #1 C42/BLK Electric throttle body C22/- Generator #2
No./Color Connective position No./ColorConnective position
D01/N Oil pressure switch D02/GRY Engine harness (To C18)

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-14
E: Main harness (RHD)
E: Main harness
56
E06E12
E03or
E85
E07
E09
E08
E13
E10
E11E05 E04
E01 E02
E19
7
22
E34E31
E32
E57
E24
(TO C36)
E33
E36
E35
E30
E29
E28
E20
E21
E22
E27
E26
E23
E25E17E56
E18
E14 E15
E55
E
I7RS0B910902-02
No./Color
Connective position No./ColorConnective position
E01/GRY Windshield wiper motor E22/N Front position light (L)
E02/GRY Brake fluid level switch E23/GRY ECM
E03/BLK ABS control module E24/N Engine Harness (To C36)
E04/BLK A/C pressure sensor E25/BLK Wheel speed sensor (FL)
E05/BLK Wheel speed sensor (FR) E26/N Main fuse box
E06/N Side turn signal light (R) E27/BLK Main fuse box
E07/N Front position light (R) E28/BLK Radiator fan relay #1
E08/BLK Head light (R) E29/BLK Radiator fan relay #2
E09/GRY Front turn signal light (R) E30/BLK Radiator fan relay #3
E10/GRN Rear washer motor E31/BLK Starting motor relay
E11/BLU Windshield washer motor E32/BLK Main relay
E12/BLK (IF EQPD) Front fog light (R)
E33/BLK A/T relay
E13/YEL Forward sensor E34/BLK (IF
EQPD) Front fog light relay
E14/BLK Outside air temperature sensor E35/BLK Fuel pump relay
E15/BLK Horn E36/BLK A/C compressor relay
E17/BLK Radiator fan motor E55/- Weld splice
E18/BLK (IF EQPD) Front fog light (L) E56/BLK
(M16A
engine) Throttle actuator control relay
E19/N Side turn signal light (L) E57/BLK Diagnosis connector #1
E20/GRY Front turn signal light (L) E85/BLK (IF
EQPD) ESP
® control module
E21/BLK Headlight (R)

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-34
Individual Circuit Fuse Box No. 1S7RS0B910D005
456789101112
131415161718192021
USE THE DESINGNATED FUSES
AND RELAYS ONLY.
Relay #1
"A-4"
E28
Relay #2
"A-4"
E29
Relay #3
"A-4"
E30
"A-5"
E35
RelayRelay
"D-3"
E34
Compressor
Relay"E-1"
E36
A/T relay
"A-6"
E33
Main relay
"A-5"
E32
Starting motor relay
"A-1"
E31
Throttle actuatorcontrol relay
"A-5"
E56
IF EQPDM16A engineI7RS0B910939-01
No. Fuse Description on the cover Protected circuit
30 A HTR FAN Blower motor relay
15 A FIMain relay
10 A A/C CPRSR A/C compressor relay
15 A AT ETM A/T relay
15 A STOP LAMP Brake light switch
30 A ABS MOT ABS control module
ESP
® control module
30 A ST MOT Starting motor relay
50 A MTA BLANK
50 A EPS Power steering control module
30 A IG ACC IG switch
30 A RDTR FAN Radiator fan relay #1
Radiator fan relay #2
BLANK BLANK BLANK
30 A ABS SOL ABS control module
ESP
® control module
BLANK BLANK BLANK 15 A THR MOT Throttle actuator control relay
15 A FR FOG Front fog light relay
15 A H/L L Headlight (L)
15 A H/L R Headlight (R)

Downloaded from www.Manualslib.com manuals search engine 9A-51 Wiring Systems:
Throttle
acutuator controlrelay
4532
BLK/REDYEL/BLU
1
243E562
135E28
15A THR
MOR
18
M13A engine, M15A engine
M16A engine
A
B
A
A
B
B
2C09
LT GRN
1
C12
C13
C11
E23
C37
C37
Knock
sensor
C19
ECM
C042
1C052
1C062
1C072
1
#2
#1 #3
#4
BLU/REDBLU/WHTBLU/YELBLU/GRN
BLK/RED
BLU/BLK
EVAP
canister purgevalve
C14
ECT
sensor
ORN
MAF sensor
MAP
sensorThrottle
position sensor
Weld spliceC41
ORNORNORN
LT GRNBLU/REDBLU/ORN
RED/YEL
GRY
"A-4"
Lg
30A RDTR
FAN
14
Relay #1
BR
46
1
2
1
29
17
16
2
1
2425
26 27
4
3
2
1
5
1
2 3
1
32
2
3
54 55
RED/BLKGRY/REDGRY/RED
GRY/BLU
53 14
E24 C36
8
7
C26
RED
1
56
VVT
solenoid
1
2
60 59
BLK/RED
E55Weld spliceC38Weld splice
BLK/REDBLK/RED
BLK/REDBLK/RED
BLK/RED
GRN/BLKGRY
BLK/YEL
GRY/BLU
52
YEL/RED
Individual circuit
fuse box (No.1)
YEL/GRN
YEL/BLK
RHD
LHD
I7RS0B910913-01

Downloaded from www.Manualslib.com manuals search engine Wiring Systems: 9A-54
BLU
12
Diagnosis
connector #1
E572
ECM
GRN
Relay #2Relay #3
G
"A-4"
E2348
RHD
WHT
BCM
APP sensor
Electric throttle body
Throttle position sensor
SUB
open
close
open
close
open
close
open
close
MAIN
SUB
MAIN
Throttle
actuator
REDBRNGRNBLUREDYELWHTBLKWHTGRNREDLT GRN/REDLT GRN/BLK
E46
3 18
TCM
WHTRED
7 17
C37
C34
1 2
ABS
Cont.MESP
Cont.M
E0310 8
or
E612
3C421 256431564
12 13
RW
5041424054434445513634523735E23
C37
A/T
BLK
31
22
(CAN) (CAN)
M13A engine, M15A engine
M16A engine
AB
B
RB
B
A
I7RS0B910914-01