2006 SUZUKI SWIFT ground

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 Engine General Information and Diagnosis: 1A-5
Freeze frame data clearance:
The freeze frame data is cleared at the same time as
clearance of DTC.
Non-Euro-OBD
ECM diagnosis troubles which may occur in the area
including the following parts w hen the ignition switch is
ON and the engine is running, and indicates the result by
turning on or flashing malfunction indicator lamp (1).
• Heated oxygen sensor
• ECT sensor
•TP sensor
• APP sensor
• MAF sensor
• IAT sensor
• MAP sensor
• CMP sensor
• CKP sensor
• Knock sensor
• Wheel speed sensor (VSS)
• CPU (Central Processing Unit) of ECM
• Oil control valve
• EGR valve
• EVAP canister purge valve
• Ignition coil
• Starter relay
• Radiator fan relay
• CAN communication
• Barometric pressure sensor
• ECM back up power supply
ECM and malfunction indicator lamp (1) operate as
follows.
• Malfunction indicator lamp (1) lights when the ignition switch is turned ON (but t he engine at stop) with the
diagnosis switch terminal ungrounded regardless of
the condition of Engine and Emission control system.
This is only to check the ma lfunction indicator lamp (1)
in the combination meter and its circuit.
• If the above areas of Engine and Emission control system is free from any trouble after the engine start
(while engine is running), malfunction indicator lamp
(1) turns OFF. • When ECM detects a trouble which has occurred in
the above areas, it makes malfunction indicator lamp
(1) turn ON while the engi ne is running to warn the
driver of such occurrence of trouble and at the same
time it stores the trouble area in ECM back-up
memory. (The memory is kept as it is even if the
trouble was only temporary and disappeared
immediately. And it is not erased unless the power to
ECM is shut off for specified time or it is cleared by
SUZUKI scan tool (2).)
For Hong Kong model, DTC can be read by not only
using SUZUKI scan tool but also displayed on
odometer (5) of the combination meter. (i.e. when
diagnosis switch terminal (3) is grounded with a
service wire (4) and ignition switch is turned ON.) For
further detail of the checking procedure, refer to “DTC
Check”.
6. Diagnosis connector
2
1
6 3
5
4
I5RS0C110021-01

Downloaded from www.Manualslib.com manuals search engine 1A-6 Engine General Information and Diagnosis:
For information about the following items, refer to “Euro
OBD Model: ”.
• Warm-up cycle
• Driving cycle
• 2 driving cycle detection logic
• Pending DTC
Data Link Connector (DLC)S7RS0B1101013
DLC (1) is in compliance with SAE J1962 in the shape of
connector and pin assignment.
OBD serial data line (3) (K line of ISO 9141) is used for
SUZUKI scan tool or OBD generic scan tool to
communicate with ECM, Air bag SDM, HVAC control
module (auto A/C model), immobilizer control module (in
ECM), BCM (Body electrical Control Module), TCM
(Transmission Cont rol Module (A/T model)) and ABS/
ESP ® control module.
Engine and Emission Control System
Description
S7RS0B1101004
The engine and emission control system is divided into 4
major sub-systems: air in take system, fuel delivery
system, electronic control sy stem and emission control
system.
Air intake system includes air cleaner, throttle body, IAC
valve and intake manifold.
Fuel delivery system includes fuel pump, delivery pipe,
etc.
Electronic control system incl udes ECM, various sensors
and controlled devices.
Emission control system includes EGR, EVAP and PCV
system.
2. B + (Unswitched vehicle battery positive)
4. ECM ground (Signal ground)
5. Vehicle body ground (Chassis ground)
2
345
1
910111213141516
12345678
1I4RS0B110002-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-15
Terminal Arrangement of ECM Coupler (Viewed from Harness Side)
[A]: Manual A/C model24. ABS / ESP® control module 49. Radiator cooling fan motor
[B]: Auto A/C model 25. TCM 50. “RDTR FAN” fuse
1. ECM 26. To other control module connected CAN 51. A/C compressor relay
2. APP sensor assembly 27. Generator 52. Magnet clutch of compressor (A/C model)
3. Shield wire 28. Electric load current sensor (if equipped) 53. “A/C CPRSR” fuse
4. CMP sensor 29. Brake light 54. Ignition coil assembly (for No.1 and No.4 spark
plugs)
5. CKP sensor 30. Brake light switch 55. Ignition coil assembly (for No.2 and No.3 spark
plugs)
6. MAF and IAT sensor 31. Diagnosis connector (Hong Kong model) 56. P/S control module
7. MAP sensor 32. Throttle actuator control relay 57. “RADIO” fuse
8. ECT sensor 33. “THR MOT” fuse 58. Main relay
9. A/C refrigerant pressure sensor 34. Throttle throttle body assembly 59. “IG COIL” fuse
10. A/C evaporator outlet air temp. sensor (Manual A/C model) 35. Throttle actuator
60. Ignition switch
11. HO2S-1 36. TP sensor 61. “IG ACC” fuse
12. HO2S-2 37. Injector No.1 62. “FI” fuse
13. Knock sensor 38. Injector No.2 63. Starting motor control relay
14. Blower motor relay 39. Injector No.3 64. “ST SIG” fuse
15. Blower motor 40. Injector No.4 65. “ST MOT” fuse
16. Blower motor resistor 41. EVAP canister purge valve66. Transmission range switch (A/T model) or CPP
switch (Hong Kong model with M/T)
17. Blower speed selector 42. EGR valve 67. Starting motor
18. A/C switch 43. Oil control valve (Camshaft position
control) (VVT model) 68. Immobilizer coil antenna
19. Blower motor controller 44. Fuel pump relay 69. Main fuse box
20. HVAC control module 45. Fuel pump 70. Battery
21. Data link connector (DLC) 46. Radiator cooling fan motor relay No.1 71. Barometric pressure sensor
22. To other control module connected with DLC 47. Radiator cooling fan motor relay No.2
72. Engine ground
23. BCM 48. Radiator cooling fan motor relay No.3 73. Body ground
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
I4RS0A110008-01

Downloaded from www.Manualslib.com manuals search engine 1A-16 Engine General Information and Diagnosis:
Connector: C37Terminal Wire color Circuit Terminal Wire color Circuit 1 BLU/YEL Fuel injector No.1 output 31 — —
2 BLU/WHT Fuel injector No.2 output 32 — —
3GRN/ORN EGR valve (stepper motor coil
2) output 33 — —
4 GRN/RED EGR valve (stepper motor coil
1) output 34 — —
5 GRN/WHT Ignition coil No.2 and No.3
output 35 — —
6 GRN/YEL Ignition coil No.1 and No.4
output 36 — —
7— — 37— —
8 BRN/WHT Generator field coil monitor
signal 38 — —
9— — 39— —
10 WHT Oxygen signal of HO2S-1 40 WHT TP sensor (sub) signal
11 BRN Oxygen signal of HO2S-2 41 — Ground for shield wire of TP
sensor circuit
12 WHT CAN (low) communication line
(active low signal) to TCM (A/T
model) 42 BLK Ground for TP sensor
13 RED CAN (high) communication line
(active high signal) to TCM (A/
T model) 43 RED
Output for 5 V power source of
TP sensor
14 GRY/RED Output of 5 V power source for
MAP sensor, A/C refrigerant
pressure sensor 44 LT GRN/BLK Output of throttle actuator
15 BLK Ground for ECM 45 LT GRN/RE D Output of throttle actuator
16 BLU/RED Fuel injector No.3 output 46 BLK/RED Heater output of heated
oxygen sensor-1
17 BLU/ORN Fuel injector No.4 output 47 RED/BLU Heater output of heated
oxygen sensor-2
18 BRN/YEL EGR valve (stepper motor coil
4) output 48 YEL/GRN Starting motor signal
19 WHT/RED EGR valve (stepper motor coil
3) output 49 — —
20 RED/YEL CMP sensor signal 50 — G round of ECM for shield wire
21 PNK CKP sensor signal 51 — Ground of ECM for shield wire
22 — — 52 — Ground of ECM for shield wire
23 PNK/BLU Electric load current sensor
signal 53 RED/BLK MAP sensor signal
24 LT GRN ECT sensor signal 54 GRN TP sensor (main) signal
25 BLK/YEL IAT sensor signal 55 ORN Ground for sensors
26 GRN/BLK MAF sensor signal 56 RED Knock sensor signal
27 GRY Ground for MAF sensor 57 YEL Ground for sensors
28 BLU/YEL Generator control signal output 58 BLK/ORN Ground for ECM
29 BLU/BLK EVAP canister purge valve
output 59 YEL/GRN Oil control valve ground
30 BLK Ground for ECM 60 YEL/RED Oil control valve output

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-17
Connector: E23Terminal Wire color Circuit Terminal Wire color Circuit 1 BLK/RED Main power supply 31 BLK Ground for ECM
2WHT/RED Power source for ECM internal
memory 32 RED/YELPower supply of throttle
actuator drive circuit
3RED CAN communication line
(active high signal) for ABS/
ESP®
control module, BCM,
combination meter 33 — —
4BRN Engine revolution signal output
for P/S control module 34 REDOutput of 5 V power source for
APP sensor (sub)
5 PPL/WHT 12 V serial communication line
of DLC 35 BRNOutput of 5 V power source for
APP sensor (main)
6 — — 36 YEL APP sensor (sub) signal
7 — — 37 GRN APP sensor (main) signal
8— — 38— —
9— — 39— —
10——40—— 11——41——
12 BLU Diagnosis switch terminal
(Hong Kong model) 42 — —
13 YEL/RED Clock signal for immobilizer
coil antenna 43 — —
14——44——
15 GRN/WHT Fuel pump relay output 45 BLU/ORN Throttle actuator control relay
output
16 BLK/RED Main power supply 46 LT GRN Radiator cooling fan relay No.1
output
17 — — 47 GRY A/C compressor relay output
18 WHT CAN communication line
(active low signal) for ABS/
ESP®
control module BCM,
combination meter 48 GRN
Radiator cooling fan relay No.2
and No.3 output
19 BLU/WHT Electric load signal for heater
blower motor 49 — —
20 GRN/WHT Brake light switch signal 50 — Ground for shield wire of APP
sensor
21 — — 51 WHT Ground for APP sensor (sub)
22 — — 52 BLU Ground for APP sensor (main)
23——53——
24 — — 54 ORN Ground for sensors
25 PPL Vehicle speed signal output for
P/S control module 55 REDA/C refrigerant pressure
sensor signal
26 RED/BLU EPS signal 56 — —
27 — — 57 WHT/BLK A/C evaporator outlet air temp.
sensor signal (Manual A/C
model)
28 YEL/BLK Serial communication line for
immobilizer coil antenna 58 — —
29 BLK/WHT Ignition switch signal 59 — —
30 WHT Starting motor control relay
output 60 BRN/WHT Main power supply relay output

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-25
Step 2: DTC / Freeze Frame Data Check, Record and
Clearance
First, check DTC (including pending DTC), referring to
“DTC Check”. If DTC is indicated, print it and freeze
frame data or write them down and then clear them by
referring to “DTC Clearance”. DTC indicates malfunction
that occurred in the system but does not indicate
whether it exists now or it occurred in the past and the
normal condition has been restored now. To check which
case applies, check the sy mptom in question according
to Step 5 and recheck DTC according to Step 6 and 7.
Attempt to diagnose a trouble based on DTC in this step
only or failure to clear the DTC in this step will lead to
incorrect diagnosis, trouble diagnosis of a normal circuit
or difficulty in troubleshooting.
Step 3 and 4: Visual Inspection
As a preliminary step, be sure to perform visual check of
the items that support proper function of the engine
referring to “Visual Inspection”.
Step 5: Trouble Symptom Confirmation
Based on information obtained in “Step 1: Customer
Complaint Analysis: ” and “Step 2: DTC / Freeze Frame
Data Check, Record and Clearance: ”, confirm trouble
symptoms. Also, reconfirm DTC according to “DTC
Confirmation Procedure” described in each DTC diag.
flow.
Step 6 and 7: Rechecking and Record of DTC /
Freeze Frame Data
Refer to “DTC Check” for checking procedure.
Step 8: Engine Basic Inspection and Engine
Symptom Diagnosis
Perform basic engine check according to “Engine Basic
Inspection” first. When the end of the flow has been
reached, check the parts of the system suspected as a
possible cause referring to “Engine Symptom Diagnosis”
and based on symptoms appearing on the vehicle
(symptoms obtained through steps of customer
complaint analysis, trouble symptom confirmation and/or
basic engine check) and repair or replace faulty parts, if
any.
Step 9: Troubleshooting for DTC (See each DTC
Diag. Flow)
Based on the DTC indicated in Step 6 or 7 and referring
to the applicable DTC diag. flow, locate the cause of the
trouble, namely in a sensor, switch, wire harness,
connector, actuator, ECM or other part and repair or
replace faulty parts. Step 10: Intermittent Problems Check
Check parts where an intermit
tent trouble is easy to
occur (e.g., wire harness, connector, etc.), referring to
“Intermittent and Poor Connec tion Inspection in Section
00” and related circuit of DTC recorded in Step 2.
Step 11: Final Confirmation Test
Confirm that the problem symptom has gone and the
engine is free from any abnormal conditions. If what has
been repaired is re lated to the DTC, clear the DTC once,
perform DTC confirmation procedure and confirm that no
DTC is indicated.
Malfunction Indicator Lamp (MIL) CheckS7RS0B1104002
1) Turn ON ignition switch (with engine at stop) and check that MIL (1) lights.
If MIL does not light up (or MIL dims) but engine can
be starting, go to “MIL Does Not Come ON with
Ignition Switch ON and Engine Stop (but Engine Can
Be Started)” for troubleshooting.
If MIL does not light with ignition switch ON and
engine does not start though it is cranked up, go to
“ECM Power and Ground Circuit Check”.
2) Start engine and check that MIL turns OFF. If MIL remains ON and no DTC is stored in ECM, go
to “Malfunction Indicator Lamp Remains ON after
Engine Starts” for troubleshooting.
1
I4RS0A110012-01

Downloaded from www.Manualslib.com manuals search engine 1A-26 Engine General Information and Diagnosis:
DTC CheckS7RS0B1104003
NOTE
• There are two types of OBD system depending on the vehicle specification.
For details, refer to “Precaution on On-
Board Diagnostic (OBD) System”.
• The MIL is turned on when the ECM and/or TCM detect malfunction(s). Each ECM and
TCM stores diagnostic information as the
diagnostic trouble code (DTC) in its
memory and outputs th e DTC to the scan
tool.
Therefore, check both of the ECM and TCM
for any DTC with the SUZUKI scan tool
because the DTC stored in ECM and TCM
is not read and displayed at a time.
However, each of the ECM and TCM needs
not to be checked with the generic scan
tool because the DTC stored in ECM and
TCM is read and displayed at a time.

Using Scan Tool
1) Prepare OBD generic scan tool or SUZUKI scan tool.
2) With ignition switch turned OFF, connect it to DLC (1) located on underside of instrument panel at
driver’s seat side.
Special tool
(A): SUZUKI scan tool
3) Turn ignition switch ON and confirm that MIL lights.
4) Read DTC, pending DTC and freeze frame data according to instructions displayed on scan tool and
print them or write them down. Refer to scan tool
operator’s manual for further details.
If communication between scan tool and ECM is not
possible, check if scan tool is communicable by
connecting it to ECM in another vehicle. If
communication is possible in this case, scan tool is
in good condition. Then check data link connector
and serial data line (circuit) in the vehicle with which
communication was not possible. If connector and
circuit are OK, check that power supply and ground
circuits of ECM and DLC are in good condition
referring to “ECM Power and Ground Circuit Check”. 5) After completing the check,
turn ignition switch OFF
and disconnect scan tool from data link connector.
Without Using Scan Tool (Hong Kong Model) 1) Turn ignition switch to OFF position.
2) Using service wire, ground diagnosis switch terminal (1) of diagnosis connector (2).
3) Turn ON ignition switch and check DTC displayed on
odometer (3) of combination meter.
When more than 2 DTCs are stored in memory,
blinking for each DTC star ts with the smallest DTC
number in increasing order. Also, DTC is indicated
repeatedly until the ignition switch is turned OFF or
disconnect service wire.
NOTE
When no DTC is detected, display on
odometer of combinatio n meter is “0000”.

4) After completing the check, turn ignition switch to
OFF position and disconnect service wire from
diagnosis connector.
(A)
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I4RS0B110026-01
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I5RS0C110009-01