2007 SUZUKI SWIFT Relays

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 1A-128 Engine General Information and Diagnosis:
DTC P0500: Vehicle Speed Sensor “A” MalfunctionS7RS0B1104051
Wiring Diagram12
Wire circuit check
1) Disconnect radiator cooling fan control relay No. 2 and
No. 3 from individual circuit fuse box No.1 with ignition
switch turned OFF.
2) Measure resistance between “E23-48” terminal of ECM connector and vehicle body ground.
Is resistance infinity? Go to Step 13. “GRN” wire is shorted to
ground circuit.
13 Wire circuit check
1) Turn ON ignition switch.
2) Measure voltage between “E23-48” terminal of ECM
connector and vehicle body ground.
Is voltage 0 V? Go to Step 14. “GRN” wire is shorted to
power supply circuit.
14 Radiator cooling fan relay No. 2 and No. 3 check
1) Check radiator cooling fan relay No. 2 and No. 3
referring to “Radiator Coolin g Fan Relay Inspection in
Section 1F”.
Are relays in good condition? “GRN” wire is open
circuit.
Replace relay.
15 Radiator cooling fan control No. 2 and No. 3 check
1) Connect connectors to ECM with ignition switch turned
OFF.
2) Connect radiator cooling fan relay No. 2 to individual circuit fuse box No.1.
3) Run engine until ECT is over 102.5 °C, 216.5 °F.
4) Measure voltage between vehicle body ground and “E23-48” terminal of ECM connector.
Is voltage lower than 1.5 V? Intermittent trouble.
Check for intermittent
refer to “Intermittent and
Poor Connection
Inspection in Section
00”.
If OK, substitute a
known-good ECM and
recheck.
Faulty ECM.
Step Action Yes No
E23
C37
34
1819
567
10
11
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
10
11
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
E23-3E23-18REDWHTREDWHTWHT/BLKWHTBLKWHT
BLKWHTREDRED/BLK
12V
12V
3
4 21
I7RS0B110017-01
1. ECM
3. Front left side wheel speed sensor
2. ABS/ESP® control module 4. Front right side wheel speed sensor

Downloaded from www.Manualslib.com manuals search engine 1A-212 Engine General Information and Diagnosis:
Troubleshooting
WARNING!
Keep hands, tools, and clothing away from engine cooling fan to help prevent personal injury. This fan
is electric and can come on whether or not the engi ne is running. The fan can start automatically in
response to the ECT sensor with the ig nition switch at the “ON” position.

NOTE
When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the special
tool to ECM and/or the ECM connectors referri ng to “Inspection of ECM and Its Circuits”.

StepAction YesNo
1 Is there DTC(s) of ECT sensor circuit (DTC P0116 / P0117 /
P0118) and/or radiator cooling fan circuit (DTC P0480)? Go to corresponding
DTC flow.Go to Step 2.
2 Low speed radiator cooling fan control circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Start engine and select “DATA LIST” mode on scan tool.
3) Warm up engine until coolant temp. is 97.5 °C, 207.5 °F
or higher and A/C switch turns OFF (if equipped with A/
C). (If engine coolant temp. dose not rise, check engine
cooling system or ECT sensor.)
Is radiator cooling fan started at low speed when engine
coolant temp. reached above temp.? Radiator cooling fan low
speed control system is
in good condition.
Perform from Step 2 to
Step 8 in DTC P0480
diag. flow. If OK, Go to
Ste p 3.
3 Radiator cooling fan control check
1) Disconnect radiator cooling fan control relays No. 2, and
No. 3 from individual circuit fuse box No.1 with ignition
switch turned OFF.
2) Run engine when ECT is over 97.5 °C, 207.5 °F.
3) Measure voltage between vehicle body ground and “BLU/RED” wire terminal of disconnected radiator
cooling fan motor connector.
Is voltage 10 – 14 V? Go to Step 4.
“BLU/RED” wire is open
or high resistance
circuit.
4 Check radiator cooling fan wire circuit check
1) Turn ignition switch to OFF position.
2) Measure resistance between “BLK” wire terminal of
disconnected radiator coolin g fan motor connector and
vehicle body ground.
Is resistance below 1
Ω? Go to Step 5. “BLK” wire is open or
high resistance circuit.
5 Radiator cooling fan check
1) Check radiator cooling fan referring to “Radiator Cooling
Fan Motor On-Vehicle Inspection in Section 1F”.
Is it in good condition? Substitute a known-
good ECM and recheck.
Faulty radiator cooling
fan.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-1
Transmission / Transaxle
Automatic Transmission/Transaxle
Precautions
Precautions in Diagnosing TroubleS7RS0B5100001
• Do not disconnect couplers from TCM, battery cable from battery, TCM ground wire harness from engine or
main fuse before checking the diagnostic information
(DTC, freeze frame data, etc.) stored in TCM memory.
Such disconnection will clea r memorized information
in TCM memory.
• Diagnostic information stored in TCM memory can be cleared as well as checked by using SUZUKI scan
tool or generic scan tool. Before using scan tool, read
its Operator’s (Instruction) Manual carefully to have
good understanding as to what functions are available
and how to use it.
It is indistinguishable wh ich module turns on MIL
because not only ECM but also TCM turns on MIL.
Therefore, check both ECM and TCM for DTC when
MIL lights on.
When checking TCM for DTC, keep in mind that DTC
is displayed on the scan tool as follows depending on
the scan tool used.
– SUZUKI scan tool displays DTC detected by TCM.
– Generic scan tool displays DTC detected by each of ECM and TCM simultaneously.
• Using SUZUKI scan tool the diagnostic information stored in TCM memory can be checked and cleared
as well. Before its use, be sure to read Operator’s
Manual supplied with it carefully to have good
understanding of its functions and usage.
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” befo re inspection and observe
what is written there.
• TCM replacement
– When substituting a known-good TCM, check that all relays and actuators have resistance of
specified value.
Neglecting this check may result in damage to good
TCM.
• Communication of ECUs , ECM, TCM, ABS control
module, keyless start control module and BCM is
established by CAN (Controller Area Network).
Therefore, handle CAN communication line with care
referring to “Precaution for CAN Communication
System in Section 00”.
Precautions for Disassembly and ReassemblyS7RS0B5100002
When repairing automatic transaxle, it is necessary to
conduct the on-vehicle test to investigate where the
cause of the trouble lies first.
Then whether overhaul should be done or not is
determined. If the transaxle is disassembled without
such preliminary procedure, not only the cause of the
trouble would be unknown, but also a secondary trouble
may occur and often time would be wasted.
As the automatic transaxle consists of high precision
component, the following cautions should be strictly
observed when handling its parts in disassembly and
reassembly.
• Disassembling valve body assembly is prohibited
essentially. However, a few parts can be
disassembled. When disassembling valve body
component parts, confirm whether their parts are
allowed to disassemble or not referring to “Valve Body
Assembly Disassembly and Reassembly”.
• When component part of forward clutch, direct clutch, 2nd brake and/or O/D and 2nd coast brake, namely
clutch disc, brake disc, retaining plate and/or
separator plate, have been replaced, all learned
contents, which have been stored in TCM memory by
executing learning control, should be initialized
referring to “Learning Control Initialization”.
• Make sure to wash dirt off from the transaxle so that no such dirt will enter the transaxle during
dismounting and remounting.
• Select a clean place free from dust and dirt for overhauling.
• Place a rubber mat on the work bench to protect parts from damage.
• Work gloves or shop cloth should not be used. (Use a nylon cloth or a paper towel.)
• When separating the case joint, do not pry with a screwdriver or such but tap with a plastic hammer
lightly.
• Make sure to wash dirt off from the transaxle so that no such dirt will enter the transaxle during
disassembly and reassembly.
• Wash the disassembled parts in ATF (Automatic Transaxle Fluid) or kerosene (using care not to allow
ATF or kerosene to get on your face, etc.) and confirm
that each fluid passage is not clogged by blowing air
into it. But use kerosene to wash the discs, resin
washers and rubber parts.
• Replace each gasket, oil seal and O-ring with a new one.
• Apply ATF to sliding or rotating parts before
reassembly.

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-35 Wiring Systems:
Individual Circuit Fuse Box No. 2 (In J/B)S7RS0B910D006
22
28
23
29
37
24
30
38
25
31
39
26
32
40
27
33
41
34
42
35
43
36
44
45USE THE DESINGNATED FUSES AND RELAYS ONLY.
*1: DEICER / RR FOG *2: DIESEL / HID L *3: MTA / HID R
I5RS0B910919-02
No. Fuse Description on the coverProtected circuit
BLANK BLANK BLANK
15 A IG COILCurrent sensor
ECM
Fuel pump relay
Generator
Heated oxygen relay #1
Heated oxygen relay #2
ICM
IG coil #1
IG coil #2
10 A BACKAuto A/C unit
Back-up light switch (M/T)
Air intake control actuator
HVAC control switch
Headlight leveling switch
Headlight leveling actuator (R)
Headlight leveling actuator (L)
KLS ECM
Transaxle range sensor (A/T)
10 A METERBCM
COMB meter
Flasher relay
15 A ACC 1BCM
Power mirror
15 A ACC 2ACC socket or Cigar lighter
Audio
Multi information display
KLS ECM
15 A WIPERCOMB switch
DRL controller
Rear washer motor
Rear wiper motor
Rear wiper relay
Windshield washer motor
Windshield wiper motor
10 A IG1 SIGA/T relay (A/T)
Power steering control module

Downloaded from www.Manualslib.com manuals search engine 10B-1 Body Electrical Control System:
Control Systems
Body Electrical Control System
Precautions
Precautions in Diagnosing TroubleS7RS0BA200001
• Diagnostic information stored in BCM memory can be cleared as well as checked by using SUZUKI scan tool.
Before using scan tool, read its Operator ’s (Instruction) Manual carefully to have good understanding as to what
functions are available and how to use it.
• Be sure to read “Precautions for Electrical Circuit Serv ice in Section 00” before inspection and observe what is
written there.
• Communication of ECM, TCM (if equipped), ABS/ESP ® control module, steering angle sensor (ESP ® model),
keyless start control module (if equipped), combinatio n meter and BCM is established by CAN (Controller Area
Network). For detail of CAN communication for BCM, refer to “CAN Communication System Description”.
Therefore, handle CAN communication line with care referr ing to “Precaution for CAN Communication System in
Section 00”.
General Description
BCM General DescriptionS7RS0BA201001
The Body electrical Control Module (BCM) is incorporated in junction block assembly. Do not attempt removal of BCM
from junction block assembly as it may cause contact failure.
The BCM incorporates relays and controllers which are used for the following systems and controls them.
• Power door lock
• Keyless entry (if equipped)
• Door lock function of keyle ss start system (if equipped)
• Rear wiper
• Combination meter
• Interior light
• Warning buzzer
• Rear end door window defogger and door mirror heater (if equipped)
• Rear end door opener
• Theft deterrent light
Also, the BCM has a function to cause the interior light and open door warning lamp in the combination meter to turn
off when any door is left open for longer than 15 minutes to reduce wasteful battery consumption.
In addition, it is possible to check operation of actuator whic h is controlled by BCM by using the output test function of
SUZUKI scan tool to operate actuator simulatively.

Downloaded from www.Manualslib.com manuals search engine 10B-13 Body Electrical Control System:
Scan Tool Data Definitions
Vehicle Speed (km/h, mph): It is computed based on pulse signals from vehicle speed sensor on transmission.
Outside air Temp ( °C, °F): It is detected by outside air temperature sensor.
Battery Voltage (V): This parameter indicates battery po sitive voltage inputted to BCM.
Coolant Temp (Engine coolant temperature) ( °C, °F): It is detected by engine coolant temperature sensor.
Engine Speed (RPM): It is computed by reference pulse signals from CMP sensor.
Fuel Consumption (km/l): This parameter indicates the fuel consumption computed by ECM.
Key Reminder Sw (Key reminder switch) (Pulled / Key in): This parameter indicates the state of the key reminder
switch.
Rear Wiper Sw (Rear wiper switch) (ON / INT / OFF): This parameter indicates the state of the rear wiper switch.
Door key Sw (Door key cylinder switch) (Lock / Neutral / Unlock): This parameter indicates the state of the door
key cylinder switch.
Door lock Sw (Manual door lock switch) (Lock / Neutral / Unlock): This parameter indicates the state of the
manual door lock switch.
Driv Door Sw (Driver side d oor switch) (Open / Close): This parameter indicates the state of the driver side door
switch.
Pass Door Sw (Other than driver side door switch) (Open / Close): This parameter indicates the state of the door
switches other than driver side door switch.
Brake Fluid Level (Low / Normal): Low: Brake fluid level is lower than specified level.
Normal: Brake fluid level is higher than MIN level.
Parking Brake Sw (Parking brake switch) (ON / OFF): ON: Parking brake lever is pulled up.
OFF: Parking brake lever is released.
Rear Defogger Sw (Rear end door window defogger switch) (ON / OFF): This parameter indicates the state of
the rear end door window defogger switch.
Tail Light Sw (Lighting switch) (ON / OFF): This parameter indicates the state of the lighting switch.
Driv Seatbelt Sw (Driver seat belt switch) (Fasten / Unfasten): This parameter indicates the state of the driver
side seat belt buckle switch.
Rear end Door Opener (Rear end door opener switch) (ON / OFF): This parameter indicates the state of the rear
end door opener switch.
“3” position Sw (ON/OFF): This parameter indicates the state of the “3 ” position switch included in A/T manual
selector assembly.
Charge lamp (ON / OFF): This parameter indicates the state of the charge system monitor switch.
Oil pressure switch (ON / OFF): This parameter indicates the state of the oil pressure switch.
A/C Switch (ON / OFF): This parameter indicates the state of the air conditioning switch.
Diagnosis Using Output Test Function of SUZUKI Scan Tool
SUZUKI scan tool has the output test function which can force operation of following actuators and relays of the
system controlled by BCM. When a malf unction is found in the system controlled by BCM, execute the output test
which enables easy judgment whether the malfunction is on the input side or output side of BCM. For detailed
information on operation of SUZUKI scan tool, refer to “SUZUKI Scan Tool Operator’s Manual”.
Output Teat Item Controlled Parts
Hazard Warning Light Turn signal and hazard warning relay
Interior (Dome) Light Interior (Dome) light (wh en interior light switch is at DOOR position)
Door Each door lock actuator
Rear end door open Rear end door opener relay
Warning buzzer Warning buzzer (in BCM)
Rear wiper Rear wiper relay
Alarm indicator Theft deterrent light (in information display or clock)
Rear defogger Rear end door window defogger relay