Dtc P2102: Throttle Actuator Control Motor Circuit Low - Suzuki 2006 SX4 Service Manual

DTC Troubleshooting
Step
1 Was "Engine and Emission Control System Check"
performed?
2 DTC check
1) Check DTC.
Is any DTC(s) detected?
3 Throttle actuator circuit check
1) Disconnect connectors from electric throttle body
assembly and ECM with ignition switch turned OFF.
2) Check for proper terminal connection to electric throttle
body assembly and ECM connectors.
3) If connections are OK, check that throttle actuator
control circuit is as follows.
• Wiring harness resistance of each throttle actuator
control circuit (+) and (–) is less than 3 Ω
• Insulation resistance between throttle actuator control
circuit (+) or (–) and vehicle body ground is Infinity
• Insulation resistance of wire harness is infinity
between throttle actuator control circuit (+) and each
other terminal at electric throttle body connector
• Circuit voltage of throttle actuator control circuit (+)
and (–) is 0 – 1 V with ignition switch turned ON.
Are they in good condition?
4 Electric throttle body assembly check
1) Check electric throttle body for performance referring to
"Electric Throttle Body Assembly On-Vehicle Inspection
in Section 1C".
Is it in good condition?

DTC P2102: Throttle Actuator Control Motor Circuit Low

Wiring Diagram
Refer to "DTC P0122 / P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit Low / High".
DTC Detecting Condition and Trouble Area
DTC detecting condition
Power supply voltage of throttle actuator control relay is lower
than 5 V for 0.5 sec. even though throttle actuator control relay
turned on.
(1 driving cycle detection logic)
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Keep ignition switch is at ON position for 5 sec. or longer.
4) Check DTC.
Action
Engine General Information and Diagnosis:
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
Go to Step 4.
Substitute a known-
good ECM and recheck.
Trouble area
• Throttle actuator control relay and/or its circuit
• ECM
1A-113
No
Go to "Engine and
Emission Control
System Check".
Go to Step 3.
Repair or replace.
Repair or replace
electric throttle body
assembly.
S6RW0C1104066