2006 SUZUKI SX4 Can

Downloaded from www.Manualslib.com manuals search engine 1A-152 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”.
2APP sensor assembly mounting check
1) Check that APP sensor assembly has been mounted to
vehicle body properly (no pinched floor carpet, etc.).
Is it OK?Go to Step 3. Reinstall APP sensor
assembly properly
referring to “Accelerator
Pedal Position (APP)
Sensor Assembly
Removal and
Installation in Section
1C”.
3APP 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 0.167 V?Go to Step 4. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
4ECM voltage check
1) Disconnect connector from APP sensor assembly with
ignition switch turned OFF.
2) Check for proper connection to APP sensor assembly 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 7. Go to Step 5.
5ECM voltage check
1) Turn OFF ignition switch.
2) Remove ECM from its bracket with ECM connectors
connected.
3) Check for proper connection of ECM connector at “E01-
35” terminal.
4) If OK, measure voltage between “E01-35” 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-153
DTC P2123: Pedal Position Sensor (Main) Circuit High InputS6RW0D1104063
Wiring Diagram
Refer to “DTC P2122: Pedal Position Sensor (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.6Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between “E01-35” terminal of ECM
connector and engine ground.
Is resistance infinity?Substitute a known-
good ECM and recheck.“BRN” wire is shorted to
ground circuit.
7Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at “E01-
37”, “E01-52” and “E01-51” terminals.
3) If OK, measure resistance between “GRN” wire terminal
of APP sensor assembly connector and vehicle body
ground.
Is resistance infinity?Go to Step 8. “GRN” wire is shorted to
ground circuit.
8Wire harness check
1) Measure resistance between “E01-37” and each “E01-
52”, “E01-51”, “E01-50” terminals of ECM connector with
ignition switch turned OFF.
Is each resistance infinity?Go to Step 9. “GRN” wire is shorted to
“BLU” wire and/or
“WHT” wire and/or
“E01-50” circuit.
9Wire harness check
1) Measure resistance between “GRN” wire terminal of
APP sensor assembly connector and “E01-37” 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.
10APP sensor assembly check
1) Check APP sensor (main) 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
DTC detecting condition Trouble area
Output voltage of APP sensor (main) is higher than specified value.
(1 driving detection logic)• APP sensor (main) circuit
• APP sensor assembly
•ECM
• Incorrect mounting of APP sensor assembly

Downloaded from www.Manualslib.com manuals search engine 1A-154 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”.
2APP sensor assembly mounting check
1) Check that APP sensor assembly has been mounted to
vehicle body properly (no pinched floor carpet, etc.).
Is it OK?Go to Step 3. Reinstall APP sensor
assembly properly
referring to “Accelerator
Pedal Position (APP)
Sensor Assembly
Removal and
Installation in Section
1C”.
3APP 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 4.76 V or more?Go to Step 4. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
4ECM voltage check
1) Disconnect connector from APP sensor assembly with
ignition switch turned OFF.
2) Check for proper connection to APP sensor assembly 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.
5Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at “E01-
35” terminal.
3) If OK, measure voltage between “E01-35” 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 1A-156 Engine General Information and Diagnosis:
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”.

Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2APP sensor assembly mounting check
1) Check that APP sensor assembly has been mounted to
vehicle body properly (no pinched floor carpet, etc.).
Is it OK?Go to Step 3. Reinstall APP sensor
assembly properly
referring to “Accelerator
Pedal Position (APP)
Sensor Assembly
Removal and
Installation in Section
1C”.
3APP sensor (sub) and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “APP Sensor 2 Volt”
displayed on scan tool.
Is displayed voltage below 0.179 V?Go to Step 4. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
4ECM voltage check
1) Disconnect connector from APP sensor assembly with
ignition switch turned OFF.
2) Check for proper connection to APP sensor assembly at
“RED”, “YEL” and “WHT” wire terminals.
3) If OK, measure voltage between “RED” wire terminal of
APP sensor assembly connector and vehicle body
ground with ignition switch turned ON.
Is voltage 4 – 6 V?Go to Step 7. Go to Step 5.
"GRN" "BLU" "BRN"
"YEL"
"WHT"
"RED"
I4RS0B110048-01

Downloaded from www.Manualslib.com manuals search engine 1A-158 Engine General Information and Diagnosis:
DTC P2128: Pedal Position Sensor (Sub) Circuit High InputS6RW0D1104065
Wiring Diagram
Refer to “DTC P2122: Pedal Position Sensor (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.
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
Output voltage of APP sensor (sub) is higher than specified value.
(1 driving detection logic)• APP sensor (sub) circuit
• APP sensor assembly
•ECM
• Incorrect mounting of APP sensor assembly
Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2APP sensor assembly mounting check
1) Check that APP sensor assembly has been mounted to
vehicle body properly (no pinched floor carpet, etc.).
Is it OK?Go to Step 3. Reinstall APP sensor
assembly properly
referring to “Accelerator
Pedal Position (APP)
Sensor Assembly
Removal and
Installation in Section
1C”.
3APP sensor (sub) and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “APP Sensor 2 Volt”
displayed on scan tool.
Is displayed voltage 4.76 V or more?Go to Step 4. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.

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 Engine General Information and Diagnosis: 1A-163
DTC P2138: Pedal Position Sensor (Main / Sub) Voltage CorrelationS6RW0D1104067
Wiring Diagram
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.
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
BRN
GRN
BLU
RED
YEL
WHT
E01-35
E01-37
E01-52
E01-34
E01-36
E01-51
E01-505 V
5 V 1
1-132
1-2
BLK
I6RW0D110050-01
1. APP sensor assembly 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
Difference between the opening angle based on APP sensor (main) and
the opening angle based on APP sensor (sub) is more than specification
for specified time.
(1 driving detection logic)• APP sensor (main) and (sub) circuit
• APP sensor assembly
•ECM

Downloaded from www.Manualslib.com manuals search engine 1A-164 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”.
2APP sensor and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch.
3) Check each voltage of “APP Sensor 1 Volt” and “APP
Sensor 2 Volt” displayed on scan tool when accelerator
pedal is idle position and fully depressed.
Is each APP 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 APP sensor assembly with
ignition switch turned OFF.
2) Check for proper connection to APP sensor assembly at
“BRN”, “GRN”, “BLU”, “RED”, “YEL” and “WHT” wire
terminals.
3) If OK, measure voltage between “BRN” wire terminal of
APP sensor assembly connector and vehicle body
ground, between “RED” wire terminal of APP sensor
assembly connector and vehicle body ground with
ignition switch turned ON.
Is each voltage 4 – 6 V?Go to Step 6. Go to Step 4.
4Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at “E01-
35” and “E01-34” terminals
3) If OK, measure resistance between “E01-35” terminal of
ECM connector and engine ground, between “E01-34”
terminal of ECM connector and engine ground.
Is each resistance infinity?Go to Step 5. “BRN” wire or “RED”
wire is shorted to other
circuit.
5Wire harness check
1) Measure voltage between “E01-35” terminal of ECM
connector and engine ground, between “E01-34”
terminal of ECM connector and engine ground with
ignition switch turned ON.
Is each voltage 0 V?Substitute a known-
good ECM and recheck.“BRN” wire or “RED”
wire is shorted to other
circuit.
"GRN" "BLU" "BRN"
"YEL"
"WHT"
"RED"
I4RS0B110048-01