2008 SUZUKI SWIFT Ecm wire

Downloaded from www.Manualslib.com manuals search engine 7B-26 Air Conditioning System: Manual Type
Expansion Valve Removal and InstallationS7RS0B7216010
Removal1) Recover refrigerant fr om the A/C system with
recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Refrigerant
Charge”.
2) Loosen a bolt (1) and remove pipes from expansion valve (2).
3) Loosen bolts (3) and remove expansion valve.
Installation
Reverse removal procedure noting the following
instructions.
• Apply compressor oil to O-ring of expansion valve and pipes.
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
Tightening torque
Expansion valve mount bolt: 3.5 N·m (0.35 kgf-m,
2.5 lb-ft)
Expansion Valve InspectionS7RS0B7216011
Refer to “A/C System Performance Inspection”.
A/C Refrigerant Pressure Sensor and Its Circuit
Inspection
S7RS0B7216012
1) Disconnect A/C refrigerant pressure sensor connector.
2) Turn ignition switch to ON position.
3) Check if voltage between “RED” wire terminal and “ORN” wire terminal of A/C refrigerant pressure
sensor connector is 4.75 V to 5.25 V.
If not, check A/C refrigerant pressure sensor circuit.
4) Connect A/C refrigerant pressure sensor connector with ignition switch turned OFF.
5) Connect manifold gauge set to the charging valves.
6) Check A/C refrigerant pressure sensor voltage of ECM connector referring to “A/C System Inspection
at ECM”.
If voltage is not as specified below, replace A/C
refrigerant pressure sensor. A/C refrigerant pressure sensor voltage
specifications (A/C refrigerant pressure measured
by manifold gauge)
0.8 MPa (8.0 kg/cm2, 116 psi): 1.46 – 1.71 V
1.4 MPa (14 kg/cm2, 203 psi): 2.28 – 2.53 V
1.6 MPa (16 kg/cm2, 232 psi): 2.55 – 2.80 V
1.8 MPa (18 kg/cm2, 261 psi): 2.82 – 3.03 V
A/C Refrigerant Pressure Sensor Removal and
Installation
S7RS0B7216013
Removal
1) Recover refrigerant from the A/C system with the recovery and recycling equipment referring to
“Recovery” in “Operation Procedure for Refrigerant
Charge”.
2) Disconnect negative (–) cable from battery.
3) Disconnect A/C refrigerant pressure sensor connector.
4) Remove A/C refrigerant pressure sensor (1) from liquid pipe (2).
Installation
Reverse removal procedure noting the following
instructions.
• Apply compressor oil to O-ring of A/C refrigerant
pressure sensor.
• Tighten A/C refrigerant pressure sensor to specified torque.
Tightening torque
A/C refrigerant pressure sensor (a): 11 N·m (1.1
kgf-m, 8.0 lb-ft)
• Evacuate and charge the A/C system referring to “Evacuation” and “Charge” in “Operation Procedure
for Refrigerant Charge”.
1
2 2
3
I4RS0A720028-01
1 2I4RS0A720029-01
(a)I4RS0A720031-01

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System: Automatic Type 7B-71
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-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 10C-1 Immobilizer Control System:
Control Systems
Immobilizer Control System
Precautions
Precautions in Diagnosing TroublesS7RS0BA300001
• Before confirming the diagnostic trouble code (DTC),
do not disconnect connector from ECM, battery cable
from battery, ground wire harness, or main fuse. Such
disconnection will erase DTC stored in ECM.
• DTC stored in ECM memory can be checked as well as cleared by using SUZUKI scan tool. Before using
SUZUKI scan tool, read its operator’s manual
carefully to know how to use it and what functions are
available.
• Be sure to read “Precautions for Electrical Circuit Service in Section 00” before inspection.
• Communication of ECM, BCM, keyless start control module (if equipped), ABS / ESP ® control module,
steering angle sensor (ESP ® model), combination
meter and TCM (A/T model) is established by CAN
(Controller Area Network). Therefore, handle CAN
communication lines with care referring to “Precaution
for CAN Communication System in Section 00”. For
CAN communication system, refer to description on
“CAN Communication System Description in Section
1A”.
Precaution in Replacing ECMS7RS0BA300002
• If ECM is replaced with new or used one without immobilizer control function , the engine will not be
started. In case of the above, check if the newly
installed ECM has immobilizer control function.
• After ECM is replaced with new one or used one, the transponder code in the transponder built in the
ignition key has to be registered with ECM. Or, the
engine cannot be started up. For the registration
procedure, refer to “Procedure after ECM
Replacement”.
Precautions in Handling Immobilizer Control
System
S7RS0BA300003
• Do not turn ON ignition sw itch with ignition key in
contact with another one or quite close to another
one. Or, the immobilizer co ntrol system may detect
some abnormal condition and prevent the engine from
starting.
• Do not turn ON ignition switch by using ignition key with any type of metal (1) wrapped its grip or in
contact with it. Or, the i mmobilizer control system may
detect some abnormal condition and prevent the
engine from starting.
I3RH0AA30001-01
1
I3RH0AA30002-01

Downloaded from www.Manualslib.com manuals search engine Immobilizer Control System: 10C-10
DTC Confirmation Procedure1) Register the transponder code in the transponder in the ignition key with ECM referring to “Registration of the
Ignition Key”.
2) Check DTC in ECM.
Troubleshooting
DTC P1616: Different Registration ID Codes (Vehicle equipped with keyless start system only)S7RS0BA304010
Circuit Description
P1616 is detected when ECM detects different ID codes registered in ECM and keyless start control module after
turning engine start knob to ON position.
Normally, when keyless start control module is replaced with new one, ECM automatically registers blank ID code of
keyless start control module to applicable one after turning ignition switch to ON position.
However, when keyless start control module is replaced wit h used one, ECM does not automatically register old ID
code of keyless start control module to applicable one ev en if ignition switch is turned to ON position.
Step Action Yes No
1 Was “Immobilizer Control S ystem Check” performed? Go to Step 2. Go to “Immobilizer
Control System Check”.
2 Registration of Ignition Key
1) Register ignition key in use with ECM referring to
“Registration of the Ignition Key”.
Was registration of ignition key completed? Unregistration of remote
controller ID code.
Go to Step 3.
3 DTC check of ECM
Is DTC detected other than P1615? Go to applicable DTC
diag. flow.
Go to Step 4.
4 DTC check of keyless start control module
1) Check keyless start control module for DTC referring to
“DTC Check in Section 10E”.
Is DTC detected? Go to applicable DTC
diag. flow.
Go to step 5.
5 Check for communication circuit between steering lock
unit and keyless start control module
1) With the ignition switch at OFF position, disconnect
steering lock unit connector and keyless start control
module connector.
2) Check for proper connection at terminals and wires of
each connector referring to “Intermittent and Poor
Connection Inspection in Section 00”.
3) If OK, check for open, short, and high resistance in each circuit between steering lock unit and keyless start
control module. Refer to step 2 in “DTC No. 11:
Communication Error with Steeri ng Lock Unit in Section
10E”.
Is each circuit in good condition? Go to Step 6. Repair malfunction part.
6 Steering lock unit power supply check
1) Connect keyless start control module connector.
2) With ignition switch at ON position, check voltage
between power supply terminal and ground terminal of
steering lock unit connector.
Is voltage 4 – 6 V? Replace steering lock
unit.
Substitute a known-
good keyless start
control module and
recheck. If DTC P1615
is still detected,
substitute a known good
ECM and recheck.

Downloaded from www.Manualslib.com manuals search engine Immobilizer Control System: 10C-14
DTC P1625: Immobilizer Antenna ErrorS7RS0BA304015
Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Turn ignition switch to ON position.
2) Check DTC in ECM.
Troubleshooting
DTC P1636: Immobilizer Information Registration FailureS7RS0BA304016
DTC Detecting Condition and Trouble Area
Troubleshooting 3
Registration of unregistered ignition key with ECM
1) Register unregistered igniti on key with ECM referring to
“Registration of the Ignition Key”.
Was registration of ignition key completed? Unregistered ignition
key.
Go to Step 4.
4 Registration of the spare ignition key
1) Register the spare ignition key referring to “Registration
of the Ignition Key”.
Was registration of spare ignition key completed? Replace ignition key
which cannot be
registered.
Substitute a known-
good ECM and recheck.
Step Action Yes No
Detecting Condition
Trouble Area
ICM • ICM
•ECM
StepAction YesNo
1 Was “Immobilizer Control S ystem Check” performed? Go to Step 2.Go to “Immobilizer
Control System Check”.
2 DTC confirmation
1) Clear DTC(s) referring to “Diagnostic Trouble Code
(DTC) Clearance”.
2) Turn the ignition switch to OFF position.
3) Check ECM for DTC referring to “Diagnostic Trouble Code (DTC) Check”.
Is DTC P1625 still detected? Replace ICM and
recheck DTC. If DTC
P1625 is still detected,
substitute a known-
good ECM and recheck.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
Detecting Condition
Trouble Area
The registration of the immobilizer control system
information in ECM is failed. • CAN communication wire circuits
•BCM
•ECM
Step
Action YesNo
1 Was “Immobilizer Control S ystem Check” performed? Go to Step 2.Go to “Immobilizer
Control System Check”.
2 DTC check of ECM
1) Check ECM for DTC referring to “DTC Check in Section
1A”.
Is DTC P1674, P1675, P1678 and/or P1685 detected? Go to applicable DTC
diag. flow.
Go to Step 3.

Downloaded from www.Manualslib.com manuals search engine 10E-24 Keyless Start System:
DTC No. 13 / No. 14: Release Signal Error from Steering Lock Unit / Steering Lock Unit MalfunctionS7RS0BA504018
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Clear DTC referring to “DTC Clearance”.
2) Turn ignition knob switch pushing ignition knob switch.
3) Check DTC referring to “DTC Check”.
Troubleshooting
Replace steering lock unit and recheck.
NOTE
DTC No. 13 is also set is such case where the keyless start control module which was used in another
vehicle is installed, the remote controller ID code is registered in it but the ignition key transponder
code is not registered in ECM. Therefore, when DTC No. 13 is detected, register the ignition key
transponder code in ECM before replacing the steering lock unit.

DTC No. 21 / No. 22: Internal Error of Keyle ss Start Control Module (EEPROM reading error) /
(EEPROM writing error)
S7RS0BA504019
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC referring to “DTC Clearance”.
2) Turn ignition knob switch pushing ignition knob switch.
3) Push request switch of each door.
4) Check DTC referring to “DTC Check”.
Troubleshooting
Substitute a known-good keyless start control module and recheck. 3
Steering lock unit power supply voltage check
1) Connect connector to keyl ess start control module.
2) Measure voltage between “G22-3” terminal of steering lock unit connector and vehicle body ground.
Is voltage 4 – 6 V? Replace steering lock
unit.
Substitute a known-
good keyless start
control module and
recheck.
Step Action Yes No
DTC detecting condition
Trouble area
DTC No. 13:
Although lock release signal is ou tput to steering lock unit, no lock
release signal is inputted from steering lock unit.
(wire harness is normal)
DTC No. 14:
Although lock release signal is output to steering lock unit,
steering lock is not released due to temperature rise of steering
lock unit solenoid and no lock release signal is inputted.
(wire harness is normal) • Steering lock unit
DTC detecting condition Trouble area
DTC No. 21:
Data cannot be read from memory in keyless start control module.
DTC No. 22:
Data cannot be written into memory in keyless start control module.• Keyless start control module