1A-191 Engine General Information and Diagnosis:
DTC P2103: Throttle Actuator Control Motor Circuit High
S5JB0A1104079
Wiring Diagram
Refer to “DTC P2101: Throttle Actuator Control Motor Circuit Range / Performance: ”.
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) Ignition switch turned OFF for 20 sec. or more.
4) Turn ON ignition switch and check DTC.
DTC Troubleshooting
NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions For DTC Troubleshooting: ”.
DTC detecting condition Trouble area
Power supply voltage of throttle actuator control circuit is
more than 5 V for specified time even if throttle actuator
control relay is turned off.
(1 driving detection logic)
• Throttle actuator control relay circuit
• Throttle actuator control relay
•ECM
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 Throttle actuator control relay circuit check
1) Remove throttle actuator control relay from relay box
with ignition switch turned OFF.
2) Check for proper connection to throttle actuator control
relay at “BLU/BLK”, “BLU/RED”, “BLU/ORN” and “GRN”
wire terminals.
3) Turn ON ignition switch.
4) Measure voltage between engine ground and “E23-17”
terminal of ECM connector.
Is voltage 0 V?
Go to Step 3. “GRN” wire is shorted to
other circuit.
3 Throttle actuator control relay circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure resistance between engine ground and “E23-
50” terminal of ECM connector.
Is resistance infinity?
Go to Step 4. “BLU/ORN” wire is
shorted to ground
circuit.
4 Throttle actuator control relay check
1) Check throttle actuator control relay referring to “Control
Relay Inspection: in Section 1C”.
Is it in good condition?
Substitute a known-
good ECM and recheck.
Replace throttle
actuator control relay.
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