ABS SUZUKI SWIFT 2005 2.G Service User Guide

Downloaded from www.Manualslib.com manuals search engine 1A-8 Engine General Information and Diagnosis:
CAN communication system uses the serial communication in which data is transmitted at a high speed. It uses a
twisted pair of two communication lines for the high-speed da ta transmission. As one of its characteristics, multiple
control modules can communicate simultaneously. In addition, it has a function to detect a communication error
automatically. Each module reads necessary data from the received data and transmits data. ECM communicates
control data with each control module as follows.
ECM Transmission Data
NOTE
• In communication between ECM and combination meter and between ECM and steering angle sensor (ESP ® model), data is transmitted only from ECM to combination meter and steering angle
sensor. (Combination meter and steering angle sensor does not transmit data to ECM.)
• *1: Hong Kong model only.

ECM Reception Data
Engine torque signal
Accelerator pedal position signal
Throttle position signal
Brake pedal switch signal
A/C refrigerant pressure signal
A/C compressor clutch signal
Fuel consumption signal
Immobilizer indicator light control signal
MIL control signal
Diagnostic trouble code (DTC)
Engine coolant temperature signal
Engine speed signal
Vehicle speed signal
ECM-keyless start control module code TCM BCM
Combination
Meter Keyless Start
ControlModule
Transmit DATA
ECM
ESP® Control
Module ABS Control
Module
(Non-ESP® model)
*1
I7RS0B110002-01
TCM BCM Keyless Start
Control Module
DATA
ECM
Torque request signal
A/T select lever position signal
Transmission actual gear position signal
Transmission oil temperature signal
A/C switch ON signal
Electric load signal
ESP® status signal
ABS active signal
Wheel speed signal (front right)
Wheel speed signal (front left)
ECM-keyless start control module code
ID code of keyless start control module
Receive
ABS Control
Module
(Non-ESP® model)
ESP® Control
Module
I7RS0B110003-02

Downloaded from www.Manualslib.com manuals search engine 1A-12 Engine General Information and Diagnosis:
Electronic Control System DescriptionS7RS0B1101011
The electronic control system consists of 1) various sensors which detect the state of engine and driving conditions, 2)
ECM which controls various devices ac cording to the signals from the sensors and 3) various controlled devices.
Functionally, it is divided into the following sub systems:
• Fuel injection control system
• Ignition control system
• Electric throttle body control system
• Fuel pump control system
• Radiator cooling fan control system
• Evaporative emission control system
• EGR system
• Oxygen sensor heater control system
• A/C control system (A/C model)
• Camshaft position control system
• Immobilizer control system
• Generator control system
• Controller (computer) communication system
Especially, ECM, BCM, combination meter, TCM (A/T model), ABS/ESP ® control module, steering angle sensor
(ESP® model) and keyless start control module (if equipped) intercommunicate by means of CAN communication.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-13
Engine and Emission Control System Flow Diagram
Intake manifold
Exhaust gas AirFuel
Va p o r
EVAP canister purge valve
ECM
Barometric pressure sensor
A/C compressor clutch
Generator
Immobilizer
coil antenna
P/S controlmodule
Brake light switch
Air cleaner
IAT
sensor MAF
sensor
A/C refrigerant
pressure sensor
TP
sensor
Throttle body
assembly
Throttle
actuator
Wheel speed
sensor (VSS)
Steering angle sensor (ESP® model)
ABS / ESP® control module
Blower speed
selector
MAP
sensor EGR
valve
Check valve
EVAP
canisterTCM
Exhaust
manifold Exhaust
pipe
Fuel injector
ECT
sensor
Heater
control
HO2S-1 HO2S-2
Engine
CMP
sensor CKP
sensor
Knock
sensor Ignition
coil with
igniter
Fuel tank
Fuel
pump CMP actuator
oil control valve (VVT model) Three way
catalyst
Heater
control
Radiator
cooling fan
Combination meter
· MIL
· Coolant Temp.
· Immobilizer indicator light
· Tachometer
· Speedometer
· Odometer
· Diagnostic trouble code (DTC)
Keyless start
control module
DLC
· Electric load
· A/C switch ON
BCM
Diagnosis
connector
(Hong Kong model) Electric load
current sensor (if equipped)
APP sensor
I7RS0B110004-01

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 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 1A-18 Engine General Information and Diagnosis:
Engine and Emission Control Input / Output TableS7RS0B1101012
INPUTOUTPUT
ELECTRIC CONTROL DEVICE
BAROMETRIC PRESSURE SENSOR
STOP LAMP SWITCH
START SWITCH
IGNITION SWITCH
A/C REFRIGERANT PRESSURE SENSOR
BLOWER SWITCH
A/C SWITCH
A/C EVAP OUTLET AIR TEMP. SENSOR (Manual A/C model)
ABS/ESP
® CONTROL MODULE (Wheel Speed Signal)
HO2S-1
HO2S-2
IAT SENSOR MAF SENSOR
ECT SENSOR
TP SENSOR
MAP SENSOR
CMP SENSOR
CKP SENSOR
KNOCK SENSOR
ABS/ESP
® CONTROL MODULE (ABS active signal / ESP® status signal)
IMMOBILIZER CONTROL MODULE (in ECM)
APP SENSOR
FUEL PUMP RELAY
FUEL INJECTOR
HO2S HEATER THROTTLE ACTUATOR
THROTTLE ACTUATOR CONTROL RELAY
IGNITION COIL WITH IGNITER
EGR VALVE
EVAP CANISTER PURGE VALVEA/C COMPRESSOR RELAY RADIATOR FAN RELAY
MIL
MAIN RELAY
OIL CONTROL VALVE
(VVT model)
SIGNAL FROM SENSOR, SWITCH AND CONTROL MODULE
I7RS0B110009-03

Downloaded from www.Manualslib.com manuals search engine 1A-20 Engine General Information and Diagnosis:
1. Air cleaner16. CMP sensor31. Battery
2. EVAP canister purge valve 17. CKP sensor32. A/C compressor relay
3. MAF and IAT sensor 18. Radiator cooling fan33. A/C switch
4. TP sensor 19. Combination meter34. A/C evaporator outlet air temp. sensor (manual A/C model)
5. Throttle actuator 20. BCM35.Immobilizer coil antenna
6. MAP sensor 21. Ignition switch36. Main relay
7. EGR valve 22. Starter magnetic switch37. APP sensor
8. EVAP canister 23. HO2S-238. Oil control valve (VVT model)
9. Tank pressure control valve (built-in fuel pump) 24. DLC 39. TCM (A/T model)
10. Fuel pump (with pressure regulator) 25. Electric load40. Starting motor control relay
11. Ignition coil assembly 26. Fuel level sensor41. A/C refrigerant pressure sensor
12. Fuel injector 27. Brake light42. Throttle actuator control relay
13. HO2S-1 28. Brake light switch43. ABS/ESP® control module
14. Knock sensor 29. ECM44. Wheel speed sensor (VSS)
15. ECT sensor 30. Barometric pressure sensor

Downloaded from www.Manualslib.com manuals search engine 1A-28 Engine General Information and Diagnosis:
) *P0031 HO2S heater control circuit low
(Sensor-1) Heater voltage is less than specification while heater ON. 2 driving
cycles
) *P0032 HO2S heater control circuit
high (Sensor-1) Heater voltage is more than
specification while heater
ON. 2 driving
cycles
) *P0037 HO2S heater control circuit low
(Sensor-2) Heater voltage is less than specification while heater ON. 2 driving
cycles
) *P0038 HO2S heater control circuit
high (Sensor-2) Heater voltage is more than
specification while heater
ON. 2 driving
cycles
)
U *P0101 Mass or volume air flow circuit
range/performance MAF sensor volume is more
than specification or less
than specification. 2 driving
cycles
) *P0102 Mass or volume air flow circuit
low input Output voltage of MAF sensor is less than specification. 1 driving
cycle
) *P0103 Mass or volume air flow circuit
high input Output voltage of MAF sensor is more than specification. 1 driving
cycle
)
U *P0106 Manifold absolute pressure/
barometric pressure circuit
range/performance Difference between Max. manifold absolute pressure
value and Min. manifold pressure value is less than
specification or difference between barometric pressure
value and manifold pressure value is less than
specification
2 driving
cycles
) *P0107 Manifold absolute pressure/
barometric pressure circuit low
input Output voltage of MAP sensor
is less than specification.1 driving
cycle
) *P0108 Manifold absolute pressure/
barometric pressure circuit high
input Output voltage of MAP sensor is more than specification.
1 driving
cycle
)
U *P0111 Intake air temperature sensor 1
circuit range/performance Variation of intake air temperature from engine start is
less than specification. 2 driving
cycles
) *P0112 Intake air temperature sensor 1
circuit low Circuit voltage of IAT sensor is less than specification. 1 driving
cycle
) *P0113 Intake air temperature sensor 1
circuit hig

h Circuit voltage of IAT sensor
is more than specification. 1 driving
cycle
)
U *P0116 Engine coolant temperature
circuit range/performance Engine coolant temperature is less than specified
temperature for specified time from engine start. 2 driving
cycles
) *P0117 Engine coolant temperature
circuit low Circuit voltage of ECT sensor
is less than specification. 1 driving
cycle
) *P0118 Engine coolant temperature
circuit high Circuit voltage of ECT sensor
is more than specification. 1 driving
cycle
) *P0122 Throttle/pedal position sensor/
switch “A” circuit low Output voltage of TP sensor (main) is lower than
specification. 1 driving
cycle
) *P0123 Throttle/pedal position sensor/
switch “A” circuit high Output voltage of TP sensor (main) is higher than
specification. 1 driving
cycle
)
U *P0131 O2 sensor (HO2S) circuit low
voltage (Sensor-1)
Max. output voltage of HO2S-1
is less than specification.2 driving
cycles
)
U *P0132 O2 sensor (HO2S) circuit high
voltage (Sensor-1)
Min. output voltage of HO2S-1
is more than specification. 2 driving
cycles
)
U *P0133 O2 sensor (HO2S) circuit slow
response (Sensor-1) Response time of HO2S-1 output voltage between rich
and lean is longer than specification. 2 driving
cycles
) *P0134 O2 sensor (HO2S) circuit no
activity detected (Sensor-1) Output voltage of HO2S-1 is
more than specification or
less than specification. (or HO2S-1 circuit open or short) 2 driving
cycles
)
U *P0137 O2 sensor (HO2S) circuit low
voltage (Sensor-2) Output voltage of HO2S-2 is
less than specification while
engine is idling after driving with high engine load and
Max. output voltage of HO2S-2 minus Min. output voltage
of HO2S-2 is less than specification. 2 driving
cycles
)
U *P013

8 O2 sensor (HO2S) circuit high
voltage (Sensor-2) Output voltage of HO2S-2 is
more than specification while
engine is idling after driving with high engine load and
Max. output voltage of HO2S-2 minus Min. output voltage
of HO2S-2 is less than specification. 2 driving
cycles
DTC No. Detecting item
Detecting condition
(DTC will set when detecting:) MIL

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-29
) *P0140 O2 sensor (HO2S) circuit no
activity detected (Sensor-2) Output voltage of HO2S-2 is more than specification after
warming up engine. 2 driving
cycles
)
{ *P0171 System too lean Total fuel trim is larger than
specification for specified time
or longer. (Fuel trim towa rd rich side is large.) 2 driving
cycles
)
{ *P0172 System too rich Total fuel trim is smaller th
an specification for specified
time or longer. (Fue l trim toward lean side is large.) 2 driving
cycles
) *P0222 Throttle/pedal position sensor
(sub)/switch “B” circuit low Output voltage of TP sensor (sub) is lower than
specification 1 driving
cycle
) *P0223 Throttle/pedal position sensor
(sub)/switch “B” circuit high Output voltage of TP sensor (sub) is higher than
specification 1 driving
cycle
)
U *P0300 Random/multiple cylinder
misfire detected Misfire of such level as to cause damage to three way
catalyst. *2 driving
cycles
)
U *P0301 /
U *P0302 /
U *P0303 /
U *P0304 Cylinder 1 misfire detected
Cylinder 2 misfire detected
Cylinder 3 misfire detected
Cylinder 4 misfire detected
Misfire of such level as to deteriorate emission but not to
cause damage to three way catalyst.
*2 driving
cycles
) *P0327 Knock sensor 1 circuit low Output voltage of knock sensor is less than specification.1 driving
cycle
) *P0328 Knock sensor 1 circuit high Output volta ge of knock sensor is more than specification.1 driving
cycle
) *P0335 Crankshaft position sensor “A”
circuit No signal of CKP sensor for sp
ecified time even if starting
motor signal is input. 1 driving
cycle
) *P0340 Camshaft position sensor “A”
circuit CMP sensor pulse is out of specification. 1 driving
cycle
) † P0350 Ignition c
oil primary /
secondary circuit Ignition signal is not inputted to monitor circuit 5 times or
more continuously. 1 driving
cycle
)
{ *P0401 Exhaust gas recirculation flow
insufficient detected Difference in intake manifold absolute pressure between
opened EGR valve and closed EGR valve is less than
specification. 2 driving
cycles
)
{ *P0402 Exhaust gas recirculation flow
excessive detected Difference in intake manifold absolute pressure between
opened EGR valve and closed EGR valve is more than
specification. 2 driving
cycles
) *P0403 Exhaust gas recirculation
control circuit Output voltage is different from output command with
more than one pole out of 4 poles. 1 driving
cycle
)
U *P0420 Catalyst system efficiency
below threshold
Output waveforms of HO2S-1 and HO2S-2 are similar. 2 driving
cycles
) *P0443 Evaporative emission system
purge control valve circuit Monitor signal of EVAP canister purge valve is different
from command signal. (circuit open or shorted to ground) 2 driving
cycles
) *P0480 Fan 1 (Radiator cooling fan)
control circuit Monitor signal of radiator cooling fan relay is different from
command signal. 1 driving
cycle
) *P0500 Vehicle speed sensor “A” No VSS signal during fuel cut fo
r specified time or longer,
or VSS signal is not input even if vehicle is driving with
more than specified engine speed and D-range (for A/T
model). 2 driving
cycles
) P0532 A/C refrigerant pressure sensor
“A” circuit low Output voltage of A/C refrigerant pressure sensor is less
than specification.
—
) P0533 A/C refrigerant pressure sensor
“A” circuit high Output voltage of A/C refrigerant pressure sensor is more
than specification.
—
) *P0601 Internal control module
memory check sum error Data write error or check sum error. 1 driving
cycle
) P0602 Control module programming
error Data programming error.
—
) *P0607 Control module performance Data programming error. 1 driving
cycle
)
U *P061

6Starter relay circuit low Starter signal is low voltage even though engine is started
with vehicle at stop. 2 driving
cycles
DTC No. Detecting item
Detecting condition
(DTC will set when detecting:) MIL

Downloaded from www.Manualslib.com manuals search engine 1A-30 Engine General Information and Diagnosis:
)
U *P0617 Starter relay circuit high Starter signal is high voltage for specified time while
engine is running. 2 driving
cycles
) P0620 Generator control circuit Battery voltage is higher than specification even through
generator control is maximum regulation, or battery
voltage is lower than specification even through generator
control is minimum regulation
and electric load is less
than 15 A. —
) P0625 Generator field/F terminal
circuit low Generator field coil duty is
0% (high voltage) for more
than specified time even through generator control is
minimum regulation. —
) P0626 Generator field/F terminal
circuit high Generator field coil duty is
100% (low voltage) for more
than specified time even through generator control is
maximum regulation, or generator field coil duty is 100%
(low voltage) when engine is starting. —
) P1501 Electric load current sensor
circuit low Electric load current is lowe
r than specified value (electric
load current sensor voltage is higher than specified
value). —
) P1502 Electric load current sensor
circuit high Electric load current is higher than specified value
(electric load current sens
or voltage is lower than
specified value). —
)
U *P1510 ECM backup power supply
malfunction Backup power voltage is out of
specification after starting
engine. 1 driving
cycle
) † P1603 TCM trouble code detected When ECM receives a trouble code from TCM, which
indicates that some problem occurred in sensor circuits
and its calculated values used for operations such as idle
speed control, engine power control and so on by TCM,
this DTC is detected by ECM. —
) *P1674 CAN communication (buss off
error) Transmission error that
is inconsistent between
transmission data and transmission monitor (CAN bus
monitor) data is detected more than 7 times continuously. 1 driving
cycle
)
† *P1676 CAN communication (reception
error for TCM) Reception error of communication data for TCM is
detected for longer than specified time continuously. 1 driving
cycle
) P1678 CAN communication (reception
error for BCM) Reception error of communication data for BCM is
detected for longer than specified time continuously.
—
) *P1685 CAN communication (reception
error for ABS/ESP
® control
module) Reception error of communication data for ABS/ESP
®
co

ntrol module is detected for longer than specified time
continuously. 1 driving
cycle
) *P2101 Throttle actuator control motor
circuit range/performance Monitor signal of throttle actuator output (duty output) is
inconsistent with throttle actuator control command. 1 driving
cycle
) *P2102 Throttle actuator control motor
circuit low Power supply voltage of throttle actuator control circuit is
lower than specification even
if throttle actuator control
relay turned on. 1 driving
cycle
) *P2103 Throttle actuator control motor
circuit high Power supply voltage of throttle actuator control circuit is
higher than specification even if throttle actuator control
relay turned off. 1 driving
cycle
) *P2111 Throttle actuator control
system – stuck open Throttle valve default opening is greater than specified
value from complementary closed position when
diagnosing throttle valve at ignition switch turned OFF. 1 driving
cycle
) *P2112 Throttle actuator control
system – stuck closed Throttle valve default opening is smaller than specified
value from complementary closed position when
diagnosing throttle valve at ignition switch turned OFF. 1 driving
cycle
) *P2119 Throttle actuator control throttle
body range/performance Difference between actual throttle valve opening angle
and opening angle calculated by ECM is more than
specification. 1 driving
cycle
) *P2122 Throttle/pedal position sensor/
switch “D” (main) circuit low
input Output voltage of APP sensor (main) is lower than
specification.
1 driving
cycle
DTC No. Detecting item
Detecting condition
(DTC will set when detecting:) MIL