E23 SUZUKI SWIFT 2007 2.G Service Service Manual

Downloaded from www.Manualslib.com manuals search engine 1A-152 Engine General Information and Diagnosis:
DTC P2101: Throttle Actuator Control Motor Circuit Range / PerformanceS7RS0B1104067
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) 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.
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
12V
5VBLK/REDBLK/RED
BLK/YEL
12BLK/YEL
BLK/YEL
BRN/WHT
E23-1
E23-60
C37-58
C37-15 C37-30
BLK/ORN
BLKBLKE23-31 BLK
BLK/RED
BLU/ORN
RED/YELYEL/BLU
LT GRN/RED
LT GRN/BLK
RED
GRN
WHT
BLK
E23-16
E23-45
E23-32
C37-45
C37-44
C37-41C37-42
C37-40
C37-54
C37-43
1-1
1-2
1-3 3
4
5
8 67
10
9
E23-29 GRNBLK/WHTWHT
BLK/RED
I6RS0C110015-01
1. Electric throttle body assembly
3. ECM 8. “IG ACC” fuse
1-1. Throttle actuator 4. Main relay9. “IG COIL” fuse
1-2. TP sensor (main) 5. Individual circuit fuse box No.1 10. Ignition switch
1-3. TP sensor (sub) 6. “TH MOT” fuse
2. Throttle actuator control relay 7. “FI” fuse
DTC detecting condition Trouble area
Monitor signal of throttle actu ator output (duty output) is
inconsistent with throttle actuator control command.
(1 driving detection logic) • Throttle actuator circuit
• Electric throttle body
•ECM

Downloaded from www.Manualslib.com manuals search engine 1A-154 Engine General Information and Diagnosis:
DTC P2102: Throttle Actuator Control Motor Circuit LowS7RS0B1104068
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) Start engine and run it for 1 min. or more.
4) Check DTC.
DTC Troubleshooting
NOTE
• When measuring circuit voltage, resistance and/ or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors re ferring to “Inspection of ECM and Its Circuits”.
• Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and confirm that the trouble has been corrected.

DTC detecting condition Trouble area
Power supply voltage of throttle actuator control circuit is
less than 5 V for specified time even if throttle actuator
control relay is turned on.
(1 driving detection logic) • Throttle actuator control relay circuit
• Throttle actuator control relay
•ECM
Step
Action YesNo
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2.
Go to “Engine and
Emission Control
System Check”.
2 Throttle actuator cont rol relay circuit check
1) Remove ECM from its br acket with ECM connectors
connected.
2) Check for proper connection of ECM connector at “E23- 45” and “E23-32” terminals.
3) Turn ON ignition switch.
4) Measure voltage between “E23-32” terminal of ECM connector and engine ground.
Is voltage 10 – 14 V? Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
Go to Step 3.
3 Is “TH MOT” fuse in god condition? Go to Step 4Replace fuse and check
for short in circuits
connected to this fuse.
4 Throttle actuator cont rol relay circuit check
1) Remove throttle actuator co ntrol 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”, “YEL/BLU”, “BLU/ORN” and “RED/
YEL” wire terminals.
3) Measure voltage between engine ground and each “BLK/RED”, “YEL/BLU” wire terminal with ignition switch
turned ON.
Is each voltage 10 – 14 V? Go to Step 5.
“BLK/RED” wire and/or
“YEL/BLU” wire is open
or high resistance.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-155
DTC P2103: Throttle Actuator Control Motor Circuit HighS7RS0B1104069
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. 5
Throttle actuator cont rol relay circuit check
1) Disconnect connectors from ECM with ignition switch turned OFF.
2) Measure resistance at the following connector terminals. • Between “BLU/ORN” wire termin al of throttle actuator
control relay connector and “E23-45” terminal of ECM
connector
• Between “RED/YEL” wire terminal of throttle actuator control relay connector and “E23-32” terminal of ECM
connector
Is each resistance below 5
Ω? Go to Step 6. “BLU/ORN” wire and/or
“RED/YEL” wire is open
or high resistance.
6 Throttle actuator control relay check
1) Check throttle actuator control relay referring to “Main Relay, Fuel Pump Relay an d Starting Motor Control
Relay Inspection in Section 1C”.
Is it in good condition? Substitute a known-
good ECM and recheck.
Replace throttle
actuator control relay.
Step
Action YesNo
DTC detecting condition Trouble area
Power supply voltage of throttle actuator control circuit is
more than 5 V for specified time even if throttle actuator
control relay is turned off.
(1 driving detection logic.) • Throttle actuator control relay circuit
• Throttle actuator control relay
•ECM

Downloaded from www.Manualslib.com manuals search engine 1A-156 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors re ferring to “Inspection of ECM and Its Circuits”.
• Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and confirm that the trouble has been corrected.

DTC P2111 / P2112: Throttle Actuator Control System - Stuck Open / ClosedS7RS0B1104070
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
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2 Throttle actuator cont rol relay circuit check
1) Remove throttle actuator co ntrol relay from individual
circuit fuse box No.1 with ignition switch turned OFF.
2) Check for proper connection to throttle actuator control relay “BLK/RED”, “YEL/BLU”, “BLU/ORN” and “RED/
YEL” wire terminals.
3) Turn ON ignition switch.
4) Measure voltage between engine ground and “E23-32” terminal of ECM connector.
Is voltage 0 V? Go to Step 3. “RED/YEL” wire is
shorted to other circuit.
3 Throttle actuator cont rol relay circuit check
1) Disconnect connectors from ECM with ignition switch turned OFF.
2) Measure resistance between engine ground and “E23- 45” terminal of ECM connector.
Is resistance infinity? Go to Step 4. “BLU/ORN” wire is
shorted to ground
circuit.
4 Throttle actuator control relay check
1) Check throttle actuator control relay referring to “Main Relay, Fuel Pump Relay an d Starting Motor Control
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
P2111:
Throttle valve default opening is greater than 6 ° from
complementary closed position when diagnosing throttle
valve at ignition switch turned OFF.
(1 driving detection logic)
P2112:
Throttle valve default opening is smaller than 6 ° from
complementary closed position when diagnosing throttle
valve at ignition switch turned OFF.
(1 driving detection logic) • Electric throttle body
•ECM

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-159
DTC P2122: Throttle / Pedal Position Sensor / Switch “D” (Main) Circuit Low InputS7RS0B1104072
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) 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. 4
Electric throttle body check
1) Check electric throttle body 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.
Step Action Yes No
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 48 32 31
34353637
40
42 39 38
44
45 43 41 331
1213
238
BRN
GRN
BLU
RED
YEL
WHT
E23-35
E23-37
E23-52
E23-34
E23-36
E23-51
E23-50 5 V
5 V
1
1-1 3 2
1-2
I4RS0B110047-01
1. APP sensor
1-2. APP sensor (sub) 3. Ground of APP sensor for shield wire
1-1. APP sensor (main) 2. ECM
DTC detecting condition Trouble area
Output voltage of APP sensor (main) is less than specified
value for 0.2 seconds continuously.
(1 driving detection logic) • APP sensor (main) circuit
• APP sensor
•ECM
• Incorrect mounting of APP sensor

Downloaded from www.Manualslib.com manuals search engine 1A-160 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors re ferring to “Inspection of ECM and Its Circuits”.
• Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and confirm that the trouble has been corrected.

Step Action YesNo
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2.
Go to “Engine and
Emission Control
System Check”.
2 APP sensor mounting check
1) Check that APP sensor has been mounted to vehicle
body properly (no pinched floor carpet, etc.).
It is OK? Go to Step 3.
Reinstall APP sensor
properly referring to
“APP Sensor Assembly
Removal and
Installation in Section
1C”.
3 APP sensor (main) and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “APP Sensor 1 Volt” displayed on scan tool.
Is displayed voltage below 0.384 V? Go to Step 4.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
4 ECM voltage check
1) Disconnect connector from APP sensor with ignition
switch turned OFF.
2) Check for proper connection to APP sensor at “BRN”, “GRN” and “BLU” wire terminals.
3) If OK, measure voltage between “BRN” wire terminal of APP sensor connector and vehicle body ground with
ignition switch turned ON.
Is voltage 4 – 6 V? Go to Step 7.
Go to Step 5.
5 ECM voltage check
1) Turn OFF ignition switch.
2) Remove ECM from its br acket with ECM connectors
connected.
3) Check for proper connection of ECM connector at “E23- 35” terminal.
4) If OK, measure voltage between “E23-35” terminal of ECM connector and engine ground with ignition switch
turned ON.
Is voltage 4 – 6 V? “BRN” wire is open or
high resistance circuit.
Go to Step 6.
"GRN"
"BLU"
"BRN"
"YEL"
"WHT"
"RED"
I4RS0B110048-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-161
DTC P2123: Throttle / Pedal Position Sensor / Switch “D” (Main) Circuit High InputS7RS0B1104073
Wiring Diagram
Refer to “DTC P2122: Throttle / Pedal Position Sensor / Switch “D” (Main) Circuit Low Input”.
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. 6
Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between “E23-35” terminal of ECM connector and engine ground.
Is resistance infinity? Substitute a known-
good ECM and recheck.
“BRN” wire is shorted to
ground circuit.
7 Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at “E23- 37”, “E23-52” and “E23-51” terminals.
3) If OK, measure resistance between “GRN” wire terminal of APP sensor connector and vehicle body ground.
Is resistance infinity? Go to Step 8. “GRN” wire is shorted to
ground circuit.
8 Wire harness check
1) Measure resistance between “E23-37” and each “E23-
52”, “E23-51”, “E23-50” terminals of ECM connector with
ignition switch turned OFF.
Is resistance infinity? Go to Step 9. “GRN” wire is shorted to
“BLU” wire and/or
“WHT” wire and/or
“E23-50” circuit.
9 Wire harness check
1) Measure resistance between “GRN” wire terminal of
APP sensor connector and “E23-37” terminal of ECM
connector with ignition switch turned OFF.
Is resistance Below 5
Ω? Go to Step 10. “GRN” wire is open or
high resistance circuit.
10 APP sensor check
1) Check APP sensor (main) re ferring to “APP Sensor
Assembly Removal and Inst allation in Section 1C”.
Is output voltage within specified value? Substitute a known-
good ECM and recheck.
Replace APP sensor.
Step Action Yes No
DTC detecting condition
Trouble area
Output voltage of APP sensor (main) is more than
specified value for 0.2 seconds continuously.
(1 driving detection logic) • APP sensor (main) circuit
• APP sensor
•ECM
• Incorrect mounting of APP sensor

Downloaded from www.Manualslib.com manuals search engine 1A-162 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors re ferring to “Inspection of ECM and Its Circuits”.
• Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and confirm that the trouble has been corrected.

Step Action YesNo
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2.
Go to “Engine and
Emission Control
System Check”.
2 APP sensor mounting check
1) Check that APP sensor has been mounted to vehicle
body properly (no pinched floor carpet, etc.).
Is it OK? Go to Step 3.
Reinstall APP sensor
properly referring to
“APP Sensor Assembly
Removal and
Installation in Section
1C”.
3 APP sensor (main) and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “APP Sensor 1 Volt” displayed on scan tool.
Is displayed voltage 4.75 V or more? Go to Step 4.
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”
4 ECM voltage check
1) Disconnect connector from APP sensor with ignition
switch turned OFF.
2) Check for proper connection to APP sensor at “BRN”, “GRN” and “BLU” wire terminals.
3) If OK, measure voltage between “BRN” wire terminal of APP sensor assembly connector and vehicle body
ground with ignition switch turned ON.
Is voltage 4 – 6 V? Go to Step 6.
Go to Step 5.
5 Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at “E23- 35” terminal.
3) If OK, measure voltage between “E23-35” terminal of ECM connector and engine ground with ignition switch
turned ON.
Is voltage 0 V? Substitute a known-
good ECM and recheck.
“BRN” wire is shorted to
power circuit.
"GRN"
"BLU"
"BRN"
"YEL"
"WHT"
"RED"
I4RS0B110048-01

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-163
6Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at “E23- 35”, “E23-37” and “E23-34” terminals.
3) If OK, measure resistance between “GRN” wire terminal and each “BRN”, “RED” wire terminals of APP sensor
connector.
Is each resistance infinity? Go to Step 7. “GRN” wire is shorted to
“BRN” wire and/or
“RED” wire.
7 Wire harness check
1) Turn ON ignition switch.
2) Measure voltage between “E23-37” terminal of ECM
connector and engine ground.
Is voltage 0 V? Go to Step 8. “GRN” wire is shorted to
power circuit.
8 Ground circuit check
1) Connect connectors to ECM with ignition switch turned
OFF.
2) Measure resistance between “BLU” wire terminal of APP sensor connector and vehicle body ground.
Is resistance below 5
Ω? Go to Step 10. Go to Step 9.
9 Ground circuit check
1) Remove ECM from its br acket with ECM connectors
connected.
2) Check for proper connection of ECM connector at “E23- 52” terminal.
3) If OK, measure resistance between “E23-52” terminal of ECM connector and engine ground.
Is resistance below 5
Ω? “BLU” wire is open or
high resistance circuit.
Faulty ECM ground
circuit. If circuit is OK,
substitute a known-
good ECM and recheck.
10 APP sensor check
1) Check APP sensor (main) re ferring to “APP Sensor
Assembly Removal and Inst allation in Section 1C”.
Is output voltage within specified value? Substitute a known-
good ECM and recheck.
Replace APP sensor.
Step Action Yes No

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-165
4ECM voltage check
1) Disconnect connector from APP sensor with ignition
switch turned OFF.
2) Check for proper connection to APP sensor at “RED”, “YEL” and “WHT” wire terminals.
3) If OK, measure voltage between “RED” wire terminal of APP sensor connector and vehicle body ground with
ignition switch turned ON.
Is voltage 4 – 6 V? Go to Step 7. Go to Step 5.
5 ECM voltage check
1) Turn OFF ignition switch.
2) Remove ECM from its br acket with ECM connectors
connected.
3) Check for proper connection of ECM connector at “E23- 34” terminal.
4) If OK, measure voltage between “E23-34” terminal of ECM connector and engine ground with ignition switch
turned ON.
Is voltage 4 – 6 V? “RED” wire is open or
high resistance circuit.
Go to Step 6.
6 Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between “E23-34” terminal of ECM connector and engine ground.
Is resistance infinity? Substitute a known-
good ECM and recheck.
“RED” wire is shorted to
ground circuit.
7 Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at “E23- 36”, “E23-52” and “E23-51” terminals.
3) If OK, measure resistance between “YEL” wire terminal of APP sensor connector and vehicle body ground.
Is resistance infinity? Go to Step 8. “YEL” wire is shorted to
ground circuit.
8 Wire harness check
1) Measure resistance between “E23-36” and each “E23-
52”, “E23-51”, “E23-50” terminals of ECM connector with
ignition switch turned OFF.
Is each resistance infinity? Go to Step 9. “YEL” wire is shorted to
“BLU” wire and/or
“WHT” wire and/or
“E23-50” circuit.
9 Wire harness check
1) Measure resistance between “YEL” wire terminal of APP
sensor connector and “E23-36” terminal of ECM
connector with ignition switch turned OFF.
Is resistance below 5
Ω? Go to Step 10. “YEL” wire is open or
high resistance circuit.
Step Action Yes No
"GRN"
"BLU"
"BRN"
"YEL"
"WHT"
"RED"
I4RS0B110048-01