2006 SUZUKI SX4 sensor

Downloaded from www.Manualslib.com manuals search engine 1A-188 Engine General Information and Diagnosis:
Reference waveform No.19
Knock sensor signal at engine speed 4000 r/min.
Reference waveform No.20
Knock sensor signal at engine speed 4000 r/min.Reference waveform No.21
Oil control valve signal with engine idling (for engine with
VVT system)
Reference waveform No.22
Oil control valve signal with engine racing (for engine
with VVT system) Measurement
terminalCH1: “C01-56” to “C01-58”
Oscilloscope
settingCH1: 1 V/DIV
TIME: 10 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine running at 4000 r/min.
Measurement
terminalCH1: “C01-56” to “C01-58”
Oscilloscope
settingCH1: 1 V/DIV
TIME: 200 µs/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine running at 4000 r/min.
I4RS0B110072-01
I4RS0B110073-01
Measurement
terminalCH1: “C01-60” to “C01-59”
Oscilloscope
settingCH1: 5 V/DIV
TIME: 2 ms/DIV
Measurement
conditionAt the moment of the ignition switch
turned on
1. ON signal 3. Only duty cycle
2. OFF signal
Measurement
terminalCH1: “C01-60” to “C01-59”
Oscilloscope
settingCH1: 5 V/DIV
TIME: 400 µs/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Vehicle running at 20 km/h (12
mph) and depress accelerator
pedal fully
1. Accelerator pedal depressed fully 4. ON signal
2. Accelerator pedal depressed partially 5. OFF signal
3. Oil control valve signal
I4RS0B110074-01
I4RS0B110075-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-191
Reference waveform No.28
Ignition coil signal and fuel injector signal with engine
crankingReference waveform No.29
Throttle position sensor main (1) and sub (2) signal
Reference waveform No.30
Pedal position sensor main (1) and sub (2) signal Measurement
terminalCH1: “C01-20” to “C01-58”
CH2: “C01-6” to “C01-58”
CH3: “C01-1” to “C01-58”
CH4: “C01-48” to “C01-58”
Oscilloscope
settingCH1: 5 V/DIV, CH2: 5 V/DIV
CH3: 50 V/DIV, CH4: 10 V/DIV
TIME: 200 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Engine at cranking
[A]: For VVT model
[B]: For non-VVT model
1. Cylinder reference signal (CMP reference signal)
2. Ignition coil No.1 and No.4 signal
3. No.1 fuel injector signal
4. Engine start signal
I4RS0B110083-01
Measurement
terminalCH1: “C01-54” to “C01-58”
CH2: “C01-40” to “C01-58”
Oscilloscope
settingCH1: 1 V/DIV, CH2: 1 V/DIV
TIME: 200 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Ignition switch turned ON and
depress accelerator pedal fully
3. Accelerator pedal released
4. Accelerator pedal depressed fully
Measurement
terminalCH1: “E01-37” to “C01-58”
CH2: “E01-36” to “C01-58”
Oscilloscope
settingCH1: 1 V/DIV, CH2: 1 V/DIV
TIME: 100 ms/DIV
Measurement
condition• After warmed up to normal
operating temperature
• Ignition switch turned ON and
depress accelerator pedal fully
3. Accelerator pedal released
4. Accelerator pedal depressed fully
3431
2
I5RW0C110023-01
3431
2
I5RW0C110024-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-193
ECM Power and Ground Circuit CheckS6RW0D1104073
Wiring Diagram
Circuit Description
When the ignition switch is turned ON, the main relay turns ON (the contact point closes) and the main power is
supplied to ECM.
E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
BLK/WHT
BLK/RED
BLK/RED
BLK/RED
BLK/YELBLK/YEL
BLK/YEL
GRN
BRN/WHT
12V5V
2
13
12
13
14-1
15-1
15-2 14-2 4
56
E01-29
E01-1
E01-60
E01-16
9 87
1011
WHTWHT/REDE01-2
C01-58
C01-15 C01-30
BLK/ORN
BLKBLKBLK
WHT
GRY/RED
RED/BLK
GRY/BLU
C01-14
C01-53
C01-55
E01-54ORN
RED/BLUE01-55
BRNGRNBLU
REDYELWHT
E01-35E01-37E01-52
E01-51
E01-34E01-36
E01-50
REDGRN
WHTBLK
BLU
YEL
C01-43C01-54
C01-40C01-42
C01-45
C01-44
C01-41
E01-31
GRY
BLK
I6RW0D110052-01
1. Main fuse box 7. Individual circuit fuse box No.1 13. A/C refrigerant pressure sensor (if equipped with A/C)
2. Ignition switch 8. “IGN” fuse 14-1. APP sensor (main)
3. Main relay 9. “FI” fuse 14-2. APP sensor (sub)
4. BCM (included in junction block assembly) 10. “DOME” fuse 15-1. TP sensor (main)
5. “IG COIL” fuse 11. DLC 15-2. TP sensor (sub)
6. ECM 12. MAP sensor (if equipped)

Downloaded from www.Manualslib.com manuals search engine 1A-196 Engine General Information and Diagnosis:
Fuel Injector Circuit CheckS6RW0D1104074
Wiring Diagram11Sensor power source circuit check
1) Connect connectors to ECM with ignition switch turned
OFF.
2) Turn ON ignition switch, measure each voltage between
“C01-14”, “E01-35”, “E01-34” and “C01-43” terminal of
ECM connector and vehicle body ground.
Is each voltage 4 – 6 V?ECM power and ground
circuit is in good
condition.Go to Step 12.
12Sensor power source circuit check
1) Disconnect connectors from ECM, TP sensor, MAP
sensor, A/C refrigerant pressure sensor (if equipped with
A/C) and APP sensor with ignition switch turned OFF.
2) Measure each resistance between “C01-14”, “E01-35”,
“E01-34” and “C01-43” terminal of ECM connector and
vehicle body ground.
Is each resistance infinity?Check internal short
circuit of TP sensor,
MAP sensor, A/C
refrigerant pressure
sensor (if equipped with
A/C) and/or APP
sensor.“GRY/RED”, “BRN” and/
or “RED” wire is shorted
to ground circuit. Step Action Yes No
BLK/WHT
BLK/RED
BLK/RED
WHTBLK/YELBLK/YEL
BLK/YEL
GRN
BRN/WHT
12V5V
9
2 83E01-29
E01-1
E01-60
10 11
E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
C01-1
C01-2
C01-16
C01-17
BLK/REDBLK/RED
BLU/YEL
BLU/RED
BLU/ORN
BLU/WHT
E01-16
4
5
6
71
C01-58
C01-15 C01-30
BLK/ORN
BLKBLKBLKE01-31
I6RW0D110053-01
1. Main fuse box 4. No.1 injector 7. No.4 injector 10. “FI” fuse
2. Main relay 5. No.2 injector 8. “IG COIL” fuse 11. “IGN” fuse
3. ECM 6. No.3 injector 9. Ignition switch

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-205
A/C System Circuits CheckS6RW0D1104078
Wiring Diagram
BLU/WHT
BLU/WHTE01-19
E01-19
21
E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
BLK/RED
BRN/WHT
12V5V
17
10
8
E01-1
E01-60
BLK/YEL
REDBLK11
WHT9
34
RED/BLK
BLK/REDE01-47
E01-58
BLU/YELGRY
19
2 1
20
5 15
WHT
RED
WHT
RED
WHT
RED
WHT
RED
E01-18E01-3
WHT/BLK
C01-14
E01-57
E01-54
E01-55RED/BLU
ORN
GRY/RED
BLK/YEL
GRN/WHT
BLK/WHT
WHT
1423
24
6
22 18
80A
1316 7 12
GRN
25
BLK/RED
BLU/YEL
YEL
WHT/BLU
BLK/YELBLK/YEL
BLU
I6RW0D110056-01
1. BCM 10. A/C condenser cooling fan motor relay 19. A/C switch
2. ABS control module 11. A/C condenser cooling fan motor 20. Blower motor
3. Blower speed selector (Auto A/C model) 12. “FI” fuse 21. Blower speed selector (Manual A/C model)
4. ECM 13. “IGN” fuse 22. Blower motor relay
5. A/C evaporator outlet air temp. sensor (Manual
A/C model)14. Ignition switch 23. “IG2 SIG” fuse
6. “IG COIL” fuse 15. A/C refrigerant pressure sensor 24. “BACK” fuse
7. “A/C” fuse 16. “BLW” fuse 25. Individual circuit fuse box No.1
8. A/C compressor relay 17. Main relay
9. A/C compressor 18. Junction block assembly

Downloaded from www.Manualslib.com manuals search engine 1A-206 Engine General Information and Diagnosis:
Troubleshooting
NOTE
• Before performed trouble shooting, be sure to read the “Precautions of ECM Circuit Inspection”.
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors referring to “Inspection of ECM and Its Circuits”.
• When A/C evaporator outlet air temp. is below 2.5 °C (36.5 °F), A/C remains OFF (“E01-47” terminal
voltage becomes 10 – 14 V). This condition is not abnormal.

Step Action Yes No
1Reception data check from BCM
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch.
3) Check DTC for CAN-DTC.
Is there CAN-DTC?Go to “Troubleshooting
for CAN-DTC”.Go to Step 2.
2A/C switch signal circuit check
1) Start engine and select “Data List” mode on scan tool.
2) Check A/C switch signal under following conditions
respectively.
A/C switch signal
Engine running, A/C switch OFF: OFF
Engine running, A/C switch ON and blower speed
selector turned 1st position or more: ON
Is check result satisfactory?Go to Step 3. Check A/C switch
circuit.
3DTC check of ECT sensor circuit
1) Check ECM for DTC of ECT sensor circuit.
Is there DTC P0116, DTC P0117 or DTC P0118?Go to applicable DTC
diag. flow.Go to Step 4.
4A/C condenser cooling fan control system check
Is A/C condenser cooling fan started when A/C and blower
speed selector switch are turned ON with engine running?Go to Step 10. Go to Step 5.
5A/C condenser cooling fan control circuit check
1) Check DTC with scan tool.
Is DTC P0481 displayed?Go to “DTC P0481:
Cooling Fan 2 (A/C
Condenser Fan) Control
Circuit”.Go to Step 6.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-207
6A/C evaporator outlet air temp. sensor check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection to “E01-57” and “E01-54”
wire terminals of ECM connector.
3) If OK, measure resistance between “E01-57” and “E01-
54” wire terminals of ECM connector.
Evaporator temp. sensor resistance
At 0 °C: 6.3 – 6.9 kΩ
At 25 °C: 1.8 – 2.2 kΩ
Is resistance within specification?Go to Step 7. Faulty A/C evaporator
outlet air temp. sensor
or its circuit.
7DTC check of A/C refrigerant pressure sensor circuit
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch.
3) Check ECM for DTC of A/C refrigerant pressure sensor
circuit.
Is there DTC P0532 or DTC P0533?Go to applicable DTC
diag. flow.Go to Step 8.
8A/C refrigerant pressure sensor voltage check
1) Check A/C refrigerant pressure sensor voltage referring
to “Inspection of ECM and Its Circuits”.
Is voltage within specified value?Go to Step 9. Check amount of
refrigerant. If OK,
replace A/C refrigerant
pressure sensor.
9A/C condenser cooling fan check
1) Check A/C condenser cooling fan referring to
“Condenser Cooling Fan Inspection in Section 7B”.
Is check result satisfactory?A/C condenser cooling
fan drive circuit
malfunction. If circuit is
OK, go to Step 6.Replace A/C condenser
cooling fan motor.
10A/C compressor control system check
Is A/C compressor started when A/C and blower speed
selector switch are turned ON with engine running?A/C system is in good
condition.Go to Step 11. Step Action Yes No
7
6
5
4
3
2
1
10
20
30
4050 010
2030
60 70
80 ResistanceTemperatureI3RB0A110053-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-211
Radiator Cooling Fan Control System CheckS6RW0D1104080
Wiring Diagram
Troubleshooting
WARNING!
Keep hands, tools, and clothing away from radiator cooling fan to help prevent personal injury. This
fan is electric and can come on whether or not the engine is running. The fan can start automatically in
response to the ECT sensor with the ignition switch at the “ON” position.

NOTE
• Before performed trouble shooting, be sure to read the “Precautions of ECM Circuit Inspection”.
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors referring to “Inspection of ECM and Its Circuits”.

E01C01
3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238 3 4
18 19 5 6 7 10 11
17 20
47 46 49 50 51 21 22
5216 259
24 14
29
55 57 54 53 59
60 582
26 27 28 15
30
56 4832 31 34 35 36 37 40 42 39 38 44
45 43 41 331 12 13
238
BLK/REDBLK/RED
BLK/YELBLK/YEL
BLK/YEL
BRN/WHT
12V
5V5V
26
E01-1
E01-60
C01-58
C01-15 C01-30
BLK/ORN
BLKBLK
BLK/RED
LT GRN
BLK/REDE01-16
E01-46
BLU/REDBLKGRY
LT GRN
ORN
C01-24
C01-55 3
4
5
E01-31 BLK
8 71
I6RW0D110058-01
1. Individual circuit fuse box No.1 3. Radiator cooling fan relay 5. ECT sensor 7. “FI” fuse
2. Main relay 4. Radiator cooling fan motor 6. ECM 8. “RDTR” fuse