relay SUZUKI SX4 2006 1.G Service Owner's Manual

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-43
THROTTLE MOTOR RELAY (ON/OFF)
ON: Throttle actuator (motor) control activated by ECM.
OF: Throttle actuator (motor) control stopped by ECM.
VEHICLE SPEED (km/h, mph)
It is computed based on pulse signals from front wheel
speed sensor (RH, LH) (for M/T model) or output shaft
speed sensor (VSS) (for A/T model).INJ PULSE WIDTH (FUEL INJECTION PULSE WIDTH,
msec.)
This parameter indicates time of the injector drive (valve
opening) pulse which is output from ECM (but injector
drive time of NO.1 cylinder for multiport fuel injection).
Visual InspectionS6RW0D1104008
Visually check the following parts and systems.
Engine Basic InspectionS6RW0D1104009
This check is very important for troubleshooting when ECM has detected no DTC and no abnormality has been found
in “Visual Inspection”.
Follow the flow carefully.Inspection item Reference section
• Engine oil – level, leakage “Engine Oil and Filter Change in Section 0B”
• Engine coolant – level, leakage “Coolant Level Check in Section 1F”
• Fuel – level, leakage“Fuel Lines and Connections Inspection in
Section 0B”
• Air cleaner element – dirt, clogging “Air Cleaner Filter Inspection in Section 0B”
• Battery – fluid level, corrosion of terminal“Battery Dismounting and Remounting in
Section 1J”
• Water pump belt – tension damage“Accessory Drive Belt Inspection in Section
0B”
• Throttle valve – operating sound“Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
• Vacuum hoses of air intake system – disconnection, looseness,
deterioration, bend“Vacuum Hose Inspection in Section 1B”
• Connectors of electric wire harness – disconnection, friction
• Fuses – burning
• Parts – installation, bolt – looseness
• Parts – deformation
• Other parts that can be checked visually
Also check the following items at engine start, if possible
• Malfunction indicator lamp – Operation “Malfunction Indicator Lamp (MIL) Check”
• Charge warning lamp – Operation “Generator Symptom Diagnosis in Section 1J”
• Engine oil pressure warning lamp – Operation “Oil Pressure Switch Inspection in Section 9C”
• Engine coolant temp. meter – Operation“Engine Coolant Temperature (ECT) Sensor
Inspection in Section 1C”
• Fuel level meter – Operation “Fuel Level Sensor Inspection in Section 9C”
• Tachometer – Operation
• Abnormal air being inhaled from air intake system
• Exhaust system – leakage of exhaust gas, noise
• Other parts that can be checked visually
Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2Check battery voltage
Is it 11 V or more?Go to Step 3. Charge or replace
battery.
3Is vehicle equipped with keyless start control system?Go to Step 4. Go to Step 5.

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 1A-54 Engine General Information and Diagnosis:
Malfunction Indicator Lamp Remains ON after Engine StartsS6RW0D1104012
Wiring Diagram
Refer to “Malfunction Indicator Lamp Does Not Come ON with Ignition Switch ON and Engine Stop (but Engine Can
Be Started)”.
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.
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”.

Step Action Yes No
1DTC check
1) Start engine and recheck DTC of ECM and TCM (for A/T
model) while engine running.
Is there any DTC(s)?Go to Step 2 of “Engine
and Emission Control
System Check”, Step 2
of “A/T System Check in
Section 5A”.Go to Step 2.
2CAN communication line circuit check
1) Check CAN communication line circuit between control
modules for open, short, high resistance and
connections referring to Step 5 to 10 under
“Troubleshooting for Communication Error with Scan
Tool Using CAN”.
Is circuit in good condition?Substitute a known-
good combination meter
and recheck. If MIL still
remains ON, substitute
a known-good ECM and
recheck.Repair or replace CAN
communication circuit.

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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 1A-74 Engine General Information and Diagnosis:
DTC P0111: Intake Air Temperature Circuit Range / PerformanceS6RW0D1104023
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
NOTE
Check to make sure that 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 at engine start: less than 30 °C (86 °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) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch, clear DTC using scan tool.
3) Start engine and warm up to normal operating temperature. (ECT approx. 90 – 95 °C, 194 – 203 °F)
4) Run engine at idle speed for 10 min. or more.9MAP sensor output signal check
1) Check MAP sensor according to “Manifold Absolute
Pressure (MAP) Sensor Inspection (If Equipped) in
Section 1C”.
Is it in good condition?Substitute a known-
good ECM and recheck.Faulty MAP sensor. Step Action Yes No
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
5V
2
BLK/YEL
GRY/BLU
GRY
GRY/BLU
1
GRN/BLK
C01-25
C01-55 34
C01-26
C01-27
BLK/RED
GRY/BLU
I6RW0D110024-01
1. MAF and IAT sensor 3. To other sensors
2. ECM 4. From main relay
DTC detecting condition Trouble area
Difference of maximum IAT minus minimum IAT is less than specified value while
ECT is over 70 °C (158 °F) after 10 min from cold engine start (ECT is lower than
30°C (86 °F) at engine start).
(2 driving cycle detection logic)• High resistance circuit
• MAF and IAT sensor
•ECM

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DTC P0122: Throttle Position Sensor (Main) Circuit LowS6RW0D1104029
Wiring Diagram
DTC Detecting Condition and Trouble Area
NOTE
When DTC P0122 and P0222 are indicated together, it is possible that “RED” wire open circuit.

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
12V
5VBLK/REDBLK/RED
BLK/YEL
12BLK/YEL
BLK/YEL
BRN/WHT
E01-1
E01-60
C01-58
C01-15 C01-30
BLK/ORN
BLKBLKE01-31 BLK
BLK/RED
RED
BRN
BLU
GRN
GRNGRY
WHT
BLK
GRY
BLK/REDE01-16
E01-45
E01-32
C01-45
C01-44
C01-43
C01-54
C01-40
C01-42
C01-41
1-1
1-2
1-33
45
867
109
E01-29 GRNBLK/WHT
WHT
YEL
I6RW0D110026-01
1. Electric throttle body assembly 3. ECM 8. “IGN” fuse
1-1. Throttle actuator 4. Main relay 9. “IG COIL” fuse
1-2. Throttle position sensor (main) 5. Individual circuit fuse box No.1 10. Ignition switch
1-3. Throttle position sensor (sub) 6. “THR MOT” fuse
2. Throttle actuator control relay 7. “FI” fuse
DTC detecting condition Trouble area
Output voltage of throttle position sensor (main) is less than specified value
for specified time.
(1 driving detection logic)• Throttle position sensor (main) circuit
• Electric throttle body assembly
•ECM

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DTC P0222: Throttle Position Sensor (Sub) Circuit LowS6RW0D1104037
Wiring Diagram
DTC Detecting Condition and Trouble Area
NOTE
When DTC P0122 and P0222 are indicated together, it is possible that “RED” wire open circuit.

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
12V
5VBLK/REDBLK/RED
BLK/YEL
12BLK/YEL
BLK/YEL
BRN/WHT
E01-1
E01-60
C01-58
C01-15 C01-30
BLK/ORN
BLKBLKE01-31 BLK
BLK/RED
RED
BRN
BLU
GRN
GRNGRY
WHT
BLK
GRY
BLK/REDE01-16
E01-45
E01-32
C01-45
C01-44
C01-43
C01-54
C01-40
C01-42
C01-41
1-1
1-2
1-33
45
867
109
E01-29 GRNBLK/WHT
WHT
YEL
I6RW0D110029-01
1. Electric throttle body assembly 3. ECM 8. “IGN” fuse
1-1. Throttle actuator 4. Main relay 9. “IG COIL” fuse
1-2. Throttle position sensor (main) 5. Individual circuit fuse box No.1 10. Ignition switch
1-3. Throttle position sensor (sub) 6. “THR MOT” fuse
2. Throttle actuator control relay 7. “FI” fuse
DTC detecting condition Trouble area
Output voltage of throttle position sensor (sub) is less than specified value
for specified time.
(1 driving detection logic)• Throttle position sensor (sub) circuit
• Electric throttle body assembly
•ECM

Downloaded from www.Manualslib.com manuals search engine 1A-114 Engine General Information and Diagnosis:
DTC P0335: Crankshaft Position (CKP) Sensor CircuitS6RW0D1104041
Wiring Diagram
DTC Detecting Condition and Trouble Area7Knock sensor circuit for high resistance check
1) Turn OFF ignition switch, measure resistance between
“C01-56” terminal of ECM connector and “RED” wire
terminal of knock sensor harness connector.
Is resistance below 5
Ω?Faulty knock sensor. “RED” wire is high
resistance circuit. Step Action Yes No
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
12V
5VBLK/REDBLK/RED
BLK/RED
BLK/YELBLK/YEL
BLK/YEL
BRN/WHT
5
84 123E01-29
E01-1
E01-60
C01-58
C01-15 C01-30
BLK/ORN
BLKBLK
9
BLK/REDE01-16
BLK/ORN
1
14
C01-21 5V
7
RED/WHTGRN/WHT
GRN
RED
E01-30
C01-48
BLK/WHT
YEL/GRN
YEL/GRN
WHT
6 11
10
13
PNK
2
WHT
WHT/BLU
BLKE01-31
I6RW0D110036-01
1. CKP sensor 6. Starting motor 11. “ST SIG” fuse
2. Sensor plate on crankshaft 7. Starting motor control relay 12. “IG COIL” fuse
3. ECM 8. Main fuse box 13. “IGN” fuse
4. Main relay 9. “FI” fuse 14. To CMP sensor
5. Ignition switch 10. “ST MOT” fuse
DTC detecting condition Trouble area
No CKP sensor signal for 2 sec. even if starting motor
signal is inputted at engine cranking.
(1 driving cycle detection logic)• CKP sensor circuit open or short
• Sensor plate teeth damaged
• CKP sensor malfunction, foreign material being attached
or improper installation
•ECM
• Engine start signal circuit malfunction

Downloaded from www.Manualslib.com manuals search engine 1A-116 Engine General Information and Diagnosis:
DTC P0340: Camshaft Position (CMP) Sensor CircuitS6RW0D1104042
Wiring Diagram5Ground circuit check
1) Turn ignition switch to OFF position.
2) Measure resistance between “BLK/ORN” wire terminal
of CKP sensor connector and engine ground.
Is measured resistance value less than 3
Ω?Go to Step 6. “BLK/ORN” wire is open
or high resistance.
6Was terminal “B+” voltage in Step 3 within specification?Go to Step 7. “BLK/RED” wire is open
circuit. If wire and
connection are OK,
substitute a known-
good ECM and recheck.
7Engine start signal check
1) Check starting motor circuit for opening and short
referring to Step 2 of “DTC P0616: Starter Relay Circuit
Low” and Step 3 and 4 of “DTC P0617: Starter Relay
Circuit High”.
Is check result satisfactory?Go to Step 8. Repair or replace.
8CKP sensor check
1) Check CKP sensor and sensor plate tooth referring to
“Camshaft Position (CMP) Sensor Inspection in Section
1C”.
Is check result satisfactory?Substitute a known-
good ECM and recheck.Replace CKP sensor
and/or sensor plate. Step Action Yes No
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
12V
5VBLK/REDBLK/RED
BLK/RED
BLK/YELBLK/YEL
BLK/YEL
BRN/WHT
5
64 83
E01-29
E01-1
E01-60
C01-58
C01-15 C01-30
BLK/ORN
BLKBLK
7BLK/REDE01-16
BLK/ORN
1
10
C01-20 5V
GRNBLK/WHT
9
WHT
*E01-31 BLK
2
RED/YEL
I6RW0D110032-02
1. CMP sensor 3. ECM 5. Ignition switch 7. “FI” fuse 9. “IGN” fuse
2. Signal rotor 4. Main relay 6. Main fuse box 8. “IG COIL” fuse 10. To CKP sensor

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-119
DTC P0401 / P0402: Exhaust Gas Recirculation Flow Insufficient Detected / Excessive DetectedS6RW0D1104043
System and Wiring Diagram7CMP sensor check
1) Check CMP sensor and signal rotor tooth referring to
“Camshaft Position (CMP) Sensor Inspection in Section
1C”.
Is check result satisfactory?Substitute a known-
good ECM and recheck.Replace CMP sensor
and/or intake camshaft. Step Action Yes No
I6RW0D110034-01
1. EGR valve 4. Sensed information 7. “IG COIL” fuse 10. Main relay
2. Intake manifold 5. Fresh air 8. Main fuse box 11. “FI” fuse
3. ECM 6. Exhaust gas 9. Ignition switch 12. “IGN” fuse