Suzuki SX4 Service Manual page 156

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1A-106 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
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 "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"?
3
ECM 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", "WHT" and "BLK" wire terminals.
"BLU"
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?
4
ECM 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 "C01-
43" terminal.
4) If OK, measure voltage between "C01-43" terminal of
ECM connector and engine ground with ignition switch
turned ON.
Is voltage 4 – 6 V?
Action
"WHT"
"BLK"
"RED"
"YEL"
"GRN"
Yes
Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
Go to Step 6.
I5RW0C110016-01
"RED" wire is open or
high resistance circuit.
No
Go to "Engine and
Emission Control
System Check".
Go to Step 3.
Go to Step 4.
Go to Step 5.

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