Suzuki SWIFT RS415 2017, Service Manual

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1A-82 Engine General Information and Diagnosis:
DTC 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: ”.
• Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and
confirm that the trouble has been corrected.
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 TP sensor and its circuit check
1) Turn OFF ignition switch and connect SUZUKI scan tool
to DLC.
2) Turn ON ignition switch and check TP sensor output
voltage when throttle valve is at idle position and fully
opened.
Does voltage vary within specified value linearly as shown in
the graph?
Go to Step 14. Go to Step 3.
3 TP sensor voltage check
1) Disconnect connector from TP sensor with ignition
switch turned OFF.
2) Check for proper connection to TP sensor connector at
“GRY/RED”, “GRY/BLU” and “ORN” wire terminals.
3) If OK, then with ignition switch turned ON, check
following terminal voltages.
• Between “GRY/RED” wire terminal of TP sensor
connector and vehicle body ground
• Between “GRY/BLU” wire terminal of TP sensor
connector and vehicle body ground
Is each terminal voltage about 4 – 6 V?
Go to Step 11. Go to Step 4.
4 Was “GRY/RED” wire terminal voltage in Step 3 within
specification? Go to Step 7. Go to Step 5.
I2RH0B110029-