Suzuki Swift Sport 2004 Service & Repair Manual page 219

DTC Detecting Condition and Trouble Area
DTC detecting condition
Difference between the opening angle based on TP
sensor (main) and the opening angle based on TP sensor
(sub) is more than specification for specified time
continuously.
(1 driving detection logic)
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
• 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".
• Upon completion of inspection and repair work, perform "DTC Confirmation Procedure" and
confirm that the trouble has been corrected.
Step
1 Was "Engine and Emission Control System Check"
performed?
2 Throttle 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 displayed each TP sensor value as described voltage in
"Scan Tool Data"?
3 ECM voltage check
1) Disconnect connector from electric throttle body with
ignition switch turned OFF.
2) Check for proper connection to electric throttle body at
"RED", "GRN", "WHT" and "BLK" wire terminals.
"LT GRN/BLK"
"LT GRN/RED"
3) If OK, measure voltage between "RED" wire terminal of
electric throttle body connector and engine ground with
ignition switch turned ON.
Is voltage 4 – 6 V?
Action
"WHT"
"BLK"
"RED"
"GRN"
I4RS0B110022-02
Engine General Information and Diagnosis:
Trouble area
• Throttle position sensor (main) and (sub) circuit
• Electric throttle body
• ECM
Yes
Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
Go to Step 6.
1A-169
No
Go to "Engine and
Emission Control
System Check".
Go to Step 3.
Go to Step 4.