A02990
A09802
Throttle Control Motor
with Magnetic Switch
2
1
3
4
G
R
Y
L
ECM
9
31
2
M+
M–
CL+
CL–
E8
E8
E10
8
E10
M+
M–
CL+
CL–
–
DIAGNOSTICS
ENGINE (5VZ–FE)
DI–403
665
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
DTC
P2102
Throttle Actuator Control Motor Circuit Low
DTC
P2103
Throttle Actuator Control Motor Circuit High
CIRCUIT DESCRIPTION
The throttle motor is operated by the ECM and it opens and closes the throttle valve.
The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the
throttle body and it provides feedback to the ECM to control the throttle motor in order to the throttle valve
opening angle properly in response to the driving condition.
If this DTC is stored, the ECM shuts down the power for the throttle motor and the magnetic clutch, and the
throttle valve is fully closed by the return spring.
However, the opening angle of the throttle valve can be controlled by the accelerator pedal through the
throttle cable.
DTC No.
DTC Detecting Condition
Trouble Area
P2102
Conditions (a) and (b) continue for 0.5 seconds:
(a) Throttle control motor output duty 80 %
(b) Throttle control motor current < 0.5 A
Open or short in throttle control motor circuit
P2103
Throttle control motor current 16 A
Throttle control motor
ECM
Condition (a) continues for 0.6 seconds:
(a) Throttle control motor current 7 A
WIRING DIAGRAM
DIB22–01
DI–404
–
DIAGNOSTICS
ENGINE (5VZ–FE)
666
Author:
Date:
2003 TOYOTA TACOMA (RM1002U)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using the hand–held tester or the OBD II scan tool. Because freeze frame records
the engine conditions when a malfunction is detected. When troubleshooting it is useful for determining
whether the vehicle was running or stopped, the engine was warmed up or not, the air–fuel ratio was lean
or rich, etc. at the time of the malfunction.
1
Check throttle control motor (See page SF–28).
NG
Replace throttle control motor
(See page SF–30).
OK
2
Check for open and short in harness and connector between