2006 SUZUKI SX4 Throttle

Downloaded from www.Manualslib.com manuals search engine 1A-148 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

DTC P2111: Throttle Actuator Control System - Stuck OpenS6RW0D1104060
Wiring Diagram
Refer to “DTC P2101: Throttle Actuator Control Motor 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.
3) Ignition switch turned OFF for 20 sec. or more.
4) Turn ON ignition switch and check DTC. Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2Throttle actuator control relay circuit check
1) Remove throttle actuator control relay from individual
circuit fuse box No.1 with ignition switch turned OFF.
2) Check for proper connection to throttle actuator control
relay at “BLK/RED”, “GRY”, “BRN” and “GRN” wire
terminals.
3) Turn ON ignition switch.
4) Measure voltage between engine ground and “E01-32”
terminal of ECM connector.
Is voltage 0 V?Go to Step 3. “GRN” wire is shorted to
other circuit.
3Throttle actuator control relay circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between engine ground and “E01-
45” terminal of ECM connector.
Is resistance infinity?Go to Step 4. “BRN” wire is shorted to
ground circuit.
4Throttle actuator control relay check
1) Check throttle actuator control relay referring to “Main
Relay, Fuel Pump Relay, Starting Motor Control Relay,
Throttle Actuator Control Relay and Radiator Cooling
Fan Relay Inspection in Section 1C”.
Is it in good condition?Substitute a known-
good ECM and recheck.Replace throttle
actuator control relay.
DTC detecting condition Trouble area
Throttle position does not change by specified value during diagnosing throttle
valve at ignition switch turned OFF.
(1 driving detection logic)• Electric throttle body assembly
•ECM

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-149
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

DTC P2119: Throttle Actuator Control Throttle Body Range / PerformanceS6RW0D1104061
Wiring Diagram
Refer to “DTC P2101: Throttle Actuator Control Motor 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.
3) Keep the accelerator pedal at idle position for 2 seconds.
4) Keep the accelerator pedal at fully depressed position for 2 seconds.
5) Repeat Step 3) and 4) for 3 times.
6) Check DTC. Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2Throttle valve visual check
1) Check that there isn’t any foreign matter caught between
throttle valve and throttle body housing referring to
“Throttle Valve Visual Check” under “Electric Throttle
Body Assembly On-Vehicle Inspection in Section 1C”.
Is it in good condition?Go to Step 3. Take it out after
removing throttle body
and clean inside of
throttle body thoroughly.
3Throttle valve operation check
1) Check operation of throttle valve referring to “Throttle
Valve Operation Check” under “Electric Throttle Body
Assembly On-Vehicle Inspection in Section 1C”.
Is check result satisfactory?Go to Step 4. Replace electric throttle
body assembly.
4Throttle actuator operation check
1) Check operation of throttle actuator referring to “Throttle
Actuator Operation Check” under “Electric Throttle Body
Assembly On-Vehicle Inspection in Section 1C”.
Is check result satisfactory?Go to Step 5. Replace electric throttle
body assembly.
5Throttle position sensor performance check
1) Check performance of throttle position sensor referring
to “Throttle Position Sensor Performance Check” under
“Electric Throttle Body Assembly On-Vehicle Inspection
in Section 1C”.
Is check result satisfactory?Substitute a known-
good ECM and recheck.Replace electric throttle
body assembly.
DTC detecting condition Trouble area
Difference between the measured (actual) throttle valve opening angle and the
target throttle valve opening angle which is calculated based on accelerator pedal
opening angle and engine condition is more than specification for specified time.
(1 driving detection logic)• Throttle actuator circuit
• Electric throttle body assembly
•ECM

Downloaded from www.Manualslib.com manuals search engine 1A-150 Engine General Information and Diagnosis:
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”.
2Electric throttle body assembly system check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check each voltage of “TP
Sensor 1 Volt” and “TP Sensor 2 Volt” displayed on scan
tool when accelerator pedal is idle position and fully
depressed.
Is displayed each TP sensor value as described voltage in
“Scan Tool Data”?Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.Go to Step 3.
3Throttle actuator circuit check
1) Disconnect connector from electric throttle body
assembly with ignition switch turned OFF.
2) Check for proper connection to electric throttle body
assembly at “BLU” and “YEL” wire terminals.
3) Disconnect connectors from ECM.
4) Check for proper connection to ECM at “C01-45” and
“C01-44” terminals.
5) Measure resistance at following connector terminals.
• Between “BLU” wire terminal of electric throttle body
assembly connector and “C01-45” terminal of ECM
connector
• Between “YEL” wire terminal of electric throttle body
assembly connector and “C01-44” terminal of ECM
connector
Is each resistance below 5
Ω?Go to Step 4. “BLU” wire and/or “YEL”
wire is open or high
resistance.
4Electric throttle body assembly check
1) Check electric throttle body assembly referring to
“Electric Throttle Body Assembly and Its Circuit Check”
under “Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”.
Is check result satisfactory?Substitute a known-
good ECM and recheck.Replace electric throttle
body assembly.
“WHT”
“YEL”“RED”
“GRN” “BLU”“BLK”
I5RW0C110016-01

Downloaded from www.Manualslib.com manuals search engine 1A-160 Engine General Information and Diagnosis:
DTC P2135: Throttle Position Sensor (Main / Sub) Voltage CorrelationS6RW0D1104066
Wiring Diagram9Ground circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Check for proper connection of ECM connector at “E01-
51” terminal.
3) If OK, measure resistance between “E01-51” terminal of
ECM connector and engine ground.
Is resistance below 5
Ω?“WHT” wire is open or
high resistance circuit.Faulty ECM ground
circuit. If circuit is OK,
substitute a known-
good ECM and recheck.
10APP sensor assembly check
1) Check APP sensor (sub) referring to “Accelerator Pedal
Position (APP) Sensor Assembly Inspection in Section
1C”.
Is output voltage within specified value?Substitute a known-
good ECM and recheck.Replace APP sensor
assembly. 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/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
I6RW0D110049-02
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

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-161
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.
3) Keep the accelerator pedal at idle position for 2 seconds.
4) Keep the accelerator pedal at fully depressed position for 2 seconds.
5) Repeat Step 3) and 4) for 3 times.
6) Check DTC.
DTC Troubleshooting
NOTE
Before this troubleshooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.

DTC detecting condition Trouble area
Difference between the opening angle based on throttle position
sensor (main) and the opening angle based on throttle position
sensor (sub) is more than specification for specified time.
(1 driving detection logic)• Throttle position sensor (main) and (sub) circuit
• Electric throttle body assembly
•ECM
Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2Throttle position sensor and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check each voltage of “TP
Sensor 1 Volt” and “TP Sensor 2 Volt” displayed on scan
tool when accelerator pedal is idle position and fully
depressed.
Is each TP sensor voltage within specified value in the table
“Scan Tool Data”?Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.Go to Step 3.
3ECM voltage check
1) Disconnect connector from electric throttle body
assembly with ignition switch turned OFF.
2) Check for proper connection to electric throttle body
assembly at “RED”, “GRN”, “WHT” and “BLK” wire
terminals.
3) If OK, measure voltage between “RED” wire terminal of
electric throttle body assembly connector and engine
ground with ignition switch turned ON.
Is voltage 4 – 6 V?Go to Step 6. Go to Step 4.
“WHT”
“YEL”“RED”
“GRN” “BLU”“BLK”
I5RW0C110016-01

Downloaded from www.Manualslib.com manuals search engine 1A-162 Engine General Information and Diagnosis:
4Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between “C01-43” terminal of ECM
connector and engine ground.
Is resistance infinity?Go to Step 5. “RED” wire is shorted to
other circuit.
5Wire harness check
1) Measure voltage between “C01-43” terminal of ECM
connector and engine ground with ignition switch turned
ON.
Is voltage 0 V?Substitute a known-
good ECM and recheck.“RED” wire is shorted to
other circuit.
6Wire harness check
1) Measure voltage between “GRN” wire terminal of electric
throttle body assembly connector and engine ground,
between “WHT” wire terminal of electric throttle body
assembly connector and engine ground with ignition
switch turned ON.
Is each voltage 4 – 6 V?Go to Step 9. Go to Step 7.
7Wire harness check
1) Turn OFF ignition switch.
2) Disconnect connectors from ECM.
3) Check for proper connection of ECM connector at “C01-
54” and “C01-40” terminals.
4) If OK, measure voltage between “C01-54” terminal of
ECM connector and engine ground, between “C01-40”
terminal of ECM connector and engine ground.
Is each voltage 0 V?Go to Step 8. “GRN” wire or “WHT”
wire is shorted to other
circuit.
8Wire harness check
1) Measure resistance between “GRN” wire terminal of
electric throttle body assembly connector and engine
ground, between “WHT” wire terminal of electric throttle
body assembly connector and engine ground with
ignition switch turned OFF.
Is each resistance infinity?Substitute a known-
good ECM and recheck.“GRN” wire or “WHT”
wire is shorted to other
circuit.
9Electric throttle body assembly check
1) Check throttle position sensor referring to “Throttle
Position Sensor Performance Check” under “Electric
Throttle Body Assembly On-Vehicle Inspection in
Section 1C”.
Is each output voltage within specified value?Substitute a known-
good ECM and recheck.Replace electric throttle
body assembly. Step Action Yes No

Downloaded from www.Manualslib.com manuals search engine 1A-176 Engine General Information and Diagnosis:
C01-34 — — — — —
C01-35 — — — — —
C01-36 — — — — —
C01-37 — — — — —
C01-38 — — — — —
C01-39 — — — — —
C01-40 WHTThrottle position
sensor (sub) signal1.57 – 1.90 VIgnition switch turned ON
and accelerator pedal at
idle position after warmed
up engine.
—
3.88 – 4.45 V
(“Reference
waveform No.29: ”)Ignition switch turned ON
and accelerator pedal at
full depressed position
after warmed up engine.
C01-41 GRYGround for shield
wire of TP sensor
circuitBelow 0.3 V Ignition switch turned ON. —
C01-42 BLKGround for throttle
position sensorBelow 0.3 V Ignition switch turned ON. —
C01-43 REDOutput for 5 V
power source of
throttle position
sensor4.5 – 5.5 V Ignition switch turned ON. —
C01-44 YELOutput of throttle
actuator0 – 1 VIgnition switch turned ON
and accelerator pedal at
idle position after warmed
up engine. Output signal is pulse.
Duty ratio varies
depending on throttle
valve and accelerator
pedal position. *0 – 1 V
↑↓
10 – 14 V
(“Reference
waveform No.26: ”
and “Reference
waveform No.27: ”)Ignition switch turned ON
and accelerator pedal at
full depressed position
after warmed up engine.
C01-45 BLUOutput of throttle
actuator0 – 1 VIgnition switch turned ON
and accelerator pedal at
full depressed position
after warmed up engine. Output signal is pulse.
Duty ratio varies
depending on throttle
valve and accelerator
pedal position. *0 – 1 V
↑↓
10 – 14 V
(“Reference
waveform No.26: ”
and “Reference
waveform No.27: ”)Ignition switch turned ON
and accelerator pedal at
idle position after warmed
up engine.
C01-46BLK/
REDHeater output of
heated oxygen
sensor-110 – 14 V Ignition switch turned ON. —
*0 – 2 V
↑↓
10 – 14 V
(“Reference
waveform No.8: ” and
“Reference waveform
No.9: ”)Engine running at idle
after warmed up engine.Output signal is active low
duty pulse. Duty ratio
varies depending on
engine condition.
C01-47RED/
BLUHeater output of
heated oxygen
sensor-2 (if
equipped)10 – 14 V Ignition switch turned ON.
— 0 – 1 V
(“Reference
waveform No.10: ”)Engine running at idle
after vehicle running over
30 km/h, 19 mph for 5 min. Terminal
No.Wire
colorCircuit Normal voltage Condition Remarks

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-177
C01-48YEL/
GRNStarting motor
signal0 – 1 V Ignition switch turned ON.
—
6 – 14 V While engine cranking.
C01-49 — — — — —
C01-50WHT/
BLUGround of ECM for
shield wireBelow 0.3 V Ignition switch turned ON. —
C01-51 — — — — —
C01-52 — — — — —
C01-53RED/
BLKManifold absolute
pressure (MAP)
sensor signal (if
equipped)Approx. 4 V
(“Reference
waveform No.17: ”)Ignition switch turned ON
with barometric pressure
at 100 kPa, 760 mmHg.
—
0.4 – 2.0 V
(“Reference
waveform No.18: ”)While engine running at
specified idle speed after
warmed up with
barometric pressure at
100 kPa, 760 mmHg.
C01c01-
54GRNThrottle position
sensor (main)
signal0.75 – 1.08 VIgnition switch turned ON
and accelerator pedal at
idle position after warmed
up engine.
—
3.67 – 4.24 V
(“Reference
waveform No.29: ”)Ignition switch turned ON
and accelerator pedal at
full depressed position
after warmed up engine.
C01-55GRY/
BLUGround for sensors Below 0.3 V Ignition switch turned ON. —
C01-56 REDKnock sensor
signal2 – 3 V
(“Reference
waveform No.19: ”
and “Reference
waveform No.20: ”)Ignition switch turned ON.
— Engine running at 4000 r/
min. after warmed up.
C01-57 ORN Ground for sensors Below 0.3 V Ignition switch turned ON. —
C01-58BLK/
ORNGround for ECM Below 0.3 V Ignition switch turned ON. —
C01-59GRN/
WHTOil control valve
ground (for engine
with VVT system)Below 1.3 V Ignition switch turned ON. —
C01-60GRN/
REDOil control valve
output (for engine
with VVT system)*0 – 0.6 V
↑↓
10 – 14 V
(“Reference
waveform No.21: ”
and “Reference
waveform No.22: ”)At the moment of ignition
switch turned ON.Output signal is active
high pulse. Duty ratio
varies depending on
vehicle condition. Terminal
No.Wire
colorCircuit Normal voltage Condition Remarks
Terminal
No.Wire
colorCircuit Normal voltage Condition Remarks
E01-1BLK/
REDMain power supply 10 – 14 V Ignition switch turned ON. —
E01-2WHT/
REDPower source for
ECM internal
memory10 – 14 V Ignition switch turned ON. —
E01-3 REDCAN (high)
communication line
(active high signal)
to ABS control
module*2.5 – 4.5 V
(“Reference
waveform No.23: ”)Ignition switch turned ON
with engine at stop.CAN communication line
signal is pulse. Pulse
signal displayed with a
regular frequency with
varies depending on
engine condition.