Dtc P0223: Throttle / Pedal Position Sensor / Switch "B" (Sub) Circuit High - Suzuki Swift Sport 2004 Service & Repair Manual

1A-102 Engine General Information and Diagnosis:
Step
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 "C37-
43" terminal.
4) If OK, measure voltage between "C37-43" terminal of
ECM connector and engine ground with ignition switch
turned ON.
Is voltage 4 – 6 V?
5 Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between "C37-43" terminal of ECM
connector and engine ground.
Is resistance infinity?
6 Wire harness check
1) Measure voltage between "WHT" wire terminal of
electric throttle body connector and engine ground with
ignition switch turned ON.
Is voltage 4 – 6 V?
7 Wire harness check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Check for proper connection of ECM connector at "C37-
40" and "C37-42" terminals.
3) If OK, measure resistance between "WHT" and "BLK"
wire terminals of electric throttle body connector.
Is resistance infinity?
8 Wire harness check
1) Measure resistance between "WHT" wire terminal of
electric throttle body connector and engine ground with
ignition switch turned OFF.
Is resistance infinity?
9 Electric throttle body check
1) Check TP sensor referring to "Throttle Position Sensor
Performance Check" under "Electric Throttle Body
Assembly On-Vehicle Inspection in Section 1C".
Is output voltage within specified value?

DTC P0223: Throttle / Pedal Position Sensor / Switch "B" (Sub) Circuit High

Wiring Diagram
Refer to "DTC P0222: Throttle / Pedal Position Sensor / Switch "B" (Sub) Circuit Low".
DTC Detecting Condition and Trouble Area
DTC detecting condition
Output voltage of throttle position sensor (sub) is more than specified
value for specified time continuously.
(1 driving detection logic)
Action Yes
"RED" wire is open or
high resistance circuit.
Substitute a known-
good ECM and recheck.
Go to Step 9.
Go to Step 8.
Substitute a known-
good ECM and recheck.
Substitute a known-
good ECM and recheck.
Trouble area
• Throttle position sensor (sub) circuit
• Electric throttle body assembly
• ECM
No
Go to Step 5.
"RED" wire is shorted to
ground circuit.
Go to Step 7.
"WHT" wire is shorted to
"BLK" wire.
"WHT" wire is shorted to
ground circuit.
Replace electric throttle
body.
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