2006 SUZUKI SX4 E01-31

Downloaded from www.Manualslib.com manuals search engine 1A-14 Engine General Information and Diagnosis:
ECM Input / Output Circuit Diagram
51 50
+B
54
IG1+BB
ST64
65
67
BLK/WHTWHT/RED
BRN/WHTBLK/RED
BLK/RED
57
: 71
: 72 : 5V : 12V68 IG1
BLK
WHT
GRY
YEL/GRNWHT
66
58
61
62
63 55
70
60 59
53
WHT
4+B
5
PNK
RED/YEL
BLK/ORN
C01-20
C01-21
8RED62C01-56
13WHT/BLKE01-57
ORNE01-54
21
23WHTRED
WHTRED
22
E01-3E01-18
C01-13C01-12
YEL/RED 24E01-24
YEL/BLK
YEL/RED 25E01-28E01-13
E01-30
E01-16
E01-60E01-1
E01-29
GRN/WHTE01-20
C01-48
E01-2
GRN/YEL47
48
GRN/WHTC01-5
C01-6
44
45RED/BLKE01-58
42
43GRY46E01-47
40LT GRN41BLU/REDE01-46
38
39
PNKBLKGRN/WHTE01-15
GRN/REDGRN/WHT37YELREDC01-59C01-60
35BLU/BLKC01-29
31
32
33
34BLU/YELBLU/WHT
BLU/REDBLU/ORNC01-17C01-16
C01-1C01-2
BLK/ORNBLKC01-30
C01-58C01-15
E01-31BLKBLK
49RED/BLU
BRNE01-4
E01-26 9
GRY
BLK/YELGRY/BLU
GRN/BLKC01-26C01-27
C01-25 +B
IG16
7WHT
BRNRED/BLU
BLK/WHT
3 3
ORN
BLK/RED
C01-57
C01-10
C01-11
C01-46
C01-47
GRY/REDC01-14
11LT GRNGRY/BLUGRY/BLU12RED/BLU
C01-55
E01-55
C01-24
10
RED/BLKGRY/BLUC01-53
IG2
IG2
69RED/WHTC01-52
26
RED
BRNGRN
BLU
GRN
WHTBLK
28
30 2927
3YEL
GRYC01-41C01-42C01-40
C01-43C01-44
C01-45
E01-45E01-32
C01-54
BRN/YELWHT/RED
GRN/REDGRN/ORN
C01-18C01-1936C01-3C01-4
56
1
52
IG2+BB
BLU/WHT
BLU/WHT
14
15
17
16
E01-19
E01-19
18
19
BRNGRNBLU
REDYELWHT
E01-353
BLK
E01-37E01-52
E01-34E01-36E01-51
E01-50
2
20BLU/YELC01-28
I6RW0D110005-03
1. ECM 25. Immobilizer coil antenna 49. P/S control module
2. APP sensor assembly 26. Throttle actuator control relay 50. Brake light
3. Shield wire 27. “THR MOT” fuse 51. Brake light switch
4. CMP sensor 28. Electric throttle body assembly 52. To ABS control module
5. CKP sensor 29. Throttle actuator 53. “STOP” fuse
6. HO2S-1 30. TP sensor 54. Main relay

Downloaded from www.Manualslib.com manuals search engine 1A-52 Engine General Information and Diagnosis:
Malfunction Indicator Lamp Does Not Come ON with Ignition Switch ON and Engine Stop (but
Engine Can Be Started)
S6RW0D1104011
Wiring Diagram
Circuit Description
When the ignition switch is turned ON, ECM causes the main relay to turn ON (close the contact point). Then, ECM
being supplied with the main power, transmits indication ON signal of malfunction indicator lamp (MIL) to combination
meter in order to turn MIL ON. And then, combination meter turns MIL ON. When the engine starts to run and no
malfunction is detected in the system, ECM transmits MIL indication OFF signal to combination meter in order to turn
MIL OFF. And then, combination meter turns MIL OFF, but if a malfunction was or is detected, MIL remains ON even
when the engine is running.
BLK/WHT
BLK/RED
BLK/RED
BLK/RED
WHTBLK/YEL
BLK/YEL
RED/BLK
BLK/YEL
GRN
BRN/WHT
12V5V
2
3 8
6
57
REDWHTREDWHT
REDWHTREDWHT
E01-29
E01-3
E01-1
E01-60
E01-18
E01-16
BLK/ORN49
13
10 12 11G241-31
1414
G241-16
[A]
E01 C01
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
238G2411 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
[B]
1
C01-58
C01-15 C01-30
BLK/ORN
BLKBLKBLK
15
E01-31
REDWHTREDWHTC01-13 C01-12
1614
I6RW0D110018-02
[A]: ECM connector (viewed from harness side) 5. “IG COIL” fuse 11. Individual circuit fuse box No.1
[B]: Combination meter connector (viewed from harness side) 6. “METER” fuse 12. “IGN” fuse
1. Main fuse box 7. ECM 13. BCM
2. Ignition switch 8. Junction block assembly 14. CAN communication line
3. Main relay 9. ABS control module 15. To other control module (if equipped)
4. Malfunction indicator lamp in combination meter 10. “FI” fuse 16. TCM (for A/T model)

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-55
DTC P0010: Camshaft Position Actuator Circuit (for engine with VVT system)S6RW0D1104013
System and Wiring Diagram
Circuit Description
Actual valve timing fails to become close to target advance level of each function although advance control function or
retarded advance control function is at work.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC. Refer to “DTC Clearance”.
2) Start engine and keep it at idle for 10 seconds.
3) Check DTC. Refer to “DTC Check”.
3
7
1
[A]:45
6
C01-58
C01-15
C01-30
E01-31BLK
BLK
BLK/ORN
RED
YEL
GRN/RED
GRN/WHT
C01-60
C01-59
3
2
1
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
I6RW0D110019-01
[A]: Oil flow 2. ECM 4. Oil filter 6. Oil pan
1. Oil control valve 3. Camshaft timing sprocket 5. Oil pump 7. Intake camshaft
DTC detecting condition Trouble area
Monitor signal of oil control valve is different from command signal. (Circuit open or short)
(1 driving cycle detection logic)• Oil control valve
• Oil control valve circuit
•ECM

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-63
DTC P0101: Mass Air Flow Circuit Range / PerformanceS6RW0D1104017
Wiring Diagram
DTC Detecting Condition and Trouble Area
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
WHTBLK/YELBLK/YEL
BLK/YEL
GRN
BRN/WHT
12V5V
5V
2
34E01-29
E01-1
E01-60
C01-58
C01-15 C01-30
BLK/ORN
BLKBLK
BLK/REDE01-16
BLK/YEL
GRY/BLU
1BLK/RED
C01-25
C01-55 5
E01-31 BLK
GRY/BLU
GRY
GRN/BLKC01-26
C01-27
I6RW0D110022-02
1. MAF and IAT sensor 3. Main relay 5. To other sensors
2. Ignition switch 4. ECM
DTC detecting condition Trouble area
• MAF volume is greater than specified value after warming up engine with
idling condition.
• MAF volume is lower than specified value at high speed condition.
(2 driving cycle detection logic)• Air intake system (clog or leakage)
• MAF sensor circuit
• MAF sensor
• TP sensor and/or its circuit
• MAP sensor and/or its circuit
•ECM

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-65
4MAF sensor output voltage check
1) Turn OFF ignition switch.
2) Remove ECM from its bracket with ECM connectors
connected.
3) Measure voltage between “C01-26” and “C01-27”
terminals of ECM connector referring to “Mass Air Flow
(MAF) and Intake Air Temperature (IAT) Sensor On-
Vehicle Inspection in Section 1C”.
Is each value within specified range?Poor “C01-26” and/or
“C01-27” terminal
connection.
If OK, substitute a
known-good ECM and
recheck.Go to Step 5.
5MAF sensor power supply voltage check
1) Disconnect connector from MAF and IAT sensor with
ignition switch turned OFF.
2) Turn ON ignition switch, measure voltage between
engine ground and “BLK/RED” wire terminal (2) of MAF
and IAT sensor connector (1).
Is voltage 10 – 14 V?Go to Step 6. “BLK/RED” wire is open
circuit.
6MAF sensor ground circuit check
1) Turn OFF ignition switch, measure resistance between
“GRY” wire terminal of MAF and IAT sensor connector
and engine ground.
Is resistance below 5
Ω?Go to Step 8. Go to Step 7.
7Ground circuit check
1) Measure resistance between “C01-27” terminal of ECM
connector and vehicle body ground.
Is resistance below 5
Ω?“GRY” wire is open or
high resistance circuit.ECM grounds “C01-58”,
“C01-15”, “C01-30” and/
or “E01-31” circuit is
open or high resistance.
If wires are OK,
substitute a known-
good ECM and recheck.
8MAF sensor signal circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Turn ON ignition switch, measure voltage between
“GRN/BLK” wire terminal of MAF and IAT sensor
connector and engine ground.
Is voltage 0 V?Go to Step 9. “GRN/BLK” wire is
shorted to others circuit.
9MAF sensor signal circuit check
1) Turn OFF ignition switch, measure resistance between
“GRN/BLK” wire terminal of MAF and IAT sensor
connector and engine ground.
Is resistance infinity?Go to Step 10. “GRN/BLK” wire is
shorted to ground
circuit. Step Action Yes No
I4RS0A110020-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-67
DTC P0103: Mass Air Flow Circuit High InputS6RW0D1104019
Wiring Diagram
Refer to “DTC P0101: Mass Air Flow Circuit Range / Performance”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.4MAF sensor ground circuit check
1) Turn OFF ignition switch, measure resistance between
“GRY” wire terminal of MAF and IAT sensor connector
and engine ground.
Is resistance below 5
Ω?Go to Step 6. Go to Step 5.
5Ground circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Measure resistance between “C01-27” terminal of ECM
connector and engine ground.
Is resistance below 5
Ω?“GRY” wire is open or
high resistance circuit.ECM grounds “C01-58”,
“C01-15”, “C01-30” and/
or “E01-31” circuit is
open or high resistance.
If wires are OK,
substitute a known-
good ECM and recheck.
6MAF sensor signal circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure voltage between “GRN/BLK” wire terminal of
MAF and IAT sensor connector and engine ground with
ignition switch turned ON.
Is voltage 0 V?Go to Step 7. “GRN/BLK” wire is
shorted to other circuit.
7MAF sensor signal circuit check
1) Measure resistance between “GRN/BLK” wire terminal
of MAF and IAT sensor connector and engine ground
with ignition switch turned OFF.
Is resistance infinity?Go to Step 8. “GRN/BLK” wire is
shorted to ground
circuit.
8MAF sensor signal circuit check
1) Measure resistance between “GRN/BLK” wire terminal
of MAF and IAT sensor connector and “C01-26” terminal
of ECM connector.
Is resistance below 3
Ω?Go to Step 9. “GRN/BLK” wire is open
or high resistance
circuit.
9MAF sensor output signal check
1) Connect connectors to MAF and IAT sensor and ECM
with ignition switch turned OFF.
2) Measure voltage between “C01-26” and “C01-27”
terminals of ECM connector referring to “Mass Air Flow
(MAF) and Intake Air Temperature (IAT) Sensor On-
Vehicle Inspection in Section 1C”.
Is each value within specified range?Substitute a known-
good ECM and recheck.Faulty MAF and IAT
sensor. Step Action Yes No
DTC detecting condition Trouble area
Voltage of MAF sensor output is more than specified value for specified time
with engine running.
(1 driving cycle detection logic)• Open or short in MAF sensor circuit
• MAF sensor
•ECM

Downloaded from www.Manualslib.com manuals search engine 1A-68 Engine General Information and Diagnosis:
3) Start engine and run it for 10 sec.
4) Check DTC and pending DTC.
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2MAF sensor and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Start engine and check MAF value displayed on scan
tool. (Refer to “Scan Tool Data” for normal value.)
Is normal value indicated?Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.Go to Step 3.
3MAF sensor power supply voltage check
1) Disconnect connector from MAF and IAT sensor with
ignition switch tuned OFF.
2) Turn ON ignition switch, measure voltage between
engine ground and “BLK/RED” wire terminal of MAF and
IAT sensor connector.
Is voltage 10 – 14 V?Go to Step 4. “BLK/RED” wire is open
circuit.
4MAF sensor ground circuit check
1) Turn OFF ignition switch, measure resistance between
“GRY” wire terminal of MAF and IAT sensor connector
and engine ground.
Is resistance below 5
Ω?Go to Step 6. Go to Step 5.
5Ground circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Measure resistance between “C01-27” terminal of ECM
connector and engine ground.
Is resistance below 5
Ω?“GRY” wire is open or
high resistance circuit.ECM grounds “C01-58”,
“C01-15”, “C01-30” and/
or “E01-31” circuit are
open or high resistance.
If wires are OK,
substitute a known-
good ECM and recheck.
6MAF sensor signal circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure voltage between “GRY/BLK” wire terminal of
MAF and IAT sensor connector and engine ground.
Is voltage 0 V?Go to Step 7. “GRY/BLK” wire is
shorted to other circuit.
7MAF sensor output signal check
1) Connect connector to MAF and IAT sensor and ECM
with ignition switch turned OFF.
2) Measure voltage between “C01-26” and “C01-27”
terminal of ECM connector referring to “Mass Air Flow
(MAF) and Intake Air Temperature (IAT) Sensor On-
Vehicle Inspection in Section 1C”.
Is each value within specified range?Substitute a known-
good ECM and recheck.Faulty MAF and IAT
sensor.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-69
DTC P0106: Manifold Absolute Pressure Range / PerformanceS6RW0D1104020
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
NOTE
Check to make sure that the following conditions are satisfied when using this “DTC Confirmation
Procedure”.
• Intake air temperature at engine start: –10 °C (14 °F) to 80 °C (176 °F)
• Intake air temperature: –10 °C (14 °F) to 70 °C (158 °F)
• Engine coolant temperature: 70 °C (158 °F) or more
• Altitude (barometric pressure): 2500 m, 8200 ft or less (560 mmHg, 74.4 kPa or more)

1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ON ignition switch and clear DTC using scan tool and warm up engine completely.
3) Run engine at idle speed for 1 min.
4) Check DTC and pending DTC.
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
4
C01-58
C01-15 C01-30
BLK/ORN
BLKBLK
12
3
GRY/REDGRY/RED
5V
5VC01-14
C01-53
C01-55
RED/BLK
GRY/BLUGRY/BLU
E01-31BLK
I6RW0D110023-01
1. Manifold absolute pressure sensor 3. To other sensors
2. To A/C refrigerant pressure sensor (if equipped with A/C) 4. ECM
DTC detecting condition Trouble area
• Difference between Max. manifold absolute pressure
value and Min. manifold pressure value is less than
specified value when engine running at idle speed.
• Difference between barometric pressure value and
manifold pressure value is less than specified value for 5
sec. at 2000 r/min. or more with acceleration pedal off
condition.
(2 driving cycle detection logic)• Manifold absolute pressure sensor
• Manifold absolute pressure sensor vacuum passage
• Air intake system
•ECM