Dtc P2102: Throttle Actuator Control Motor Circuit Low - Suzuki SX4 Service Manual

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1A-146 Engine General Information and Diagnosis:
Step
4
Throttle actuator circuit check
1) Check throttle actuator referring to "Throttle Actuator
Performance Check" under "Electric Throttle Body
Assembly On-Vehicle Inspection in Section 1C".
Is check result satisfactory?

DTC P2102: Throttle Actuator Control Motor Circuit Low

Wiring Diagram
Refer to "DTC P2101: Throttle Actuator Control Motor Circuit Range / Performance".
DTC Detecting Condition and Trouble Area
Power supply voltage of throttle actuator control circuit is lower than specified
value for specified time even if throttle actuator control relay is turned on.
(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) Start engine and run it for 1 min. or more.
4) 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 actuator control relay circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Check for proper connection of ECM connector at "E01-
45" and "E01-32" terminals.
3) Turn ON ignition switch.
4) Measure voltage between "E01-32" terminal of ECM
connector and engine ground.
Is voltage 10 – 14 V?
3
Is "THR MOT" fuse in good condition?
Action
DTC detecting condition
Action
Yes
Substitute a known-
good ECM and recheck.
Trouble area
• Throttle actuator control relay circuit
• Throttle actuator control relay
• ECM
Yes
Go to Step 2.
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
Go to Step 4.
No
Replace electric throttle
body assembly.
S7RW0A1104060
No
Go to "Engine and
Emission Control
System Check".
Go to Step 3.
Replace fuse and check
for short in circuits
connected to this fuse.

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