DTC P0121 TP SENSOR
EC-747
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than the ECM terminals, such as the ground.
Diagnostic Procedure
UBS00DGZ
1.
INSPECTION START
Which malfunction (A or B) is duplicated?
A or B
A
>> GO TO 4.
B
>> GO TO 2.
2.
ADJUST THROTTLE POSITION SENSOR
Check the following items. Refer to
EC-646, "Basic Inspection"
.
>> GO TO 3.
3.
CHECK INTAKE SYSTEM.
1.
Turn ignition switch OFF.
2.
Check the following for connection.
–
Air duct
–
Vacuum hoses
–
Intake air passage between air duct to intake manifold collector
OK or NG
OK
>> GO TO 4.
NG
>> Reconnect the parts.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
23
L
Throttle position sensor
[Engine is running]
●
Warm-up condition
●
More than -40.0 kpa (-300 mmHg, -11.81 inHg)
of vacuum is applied to the throttle opener with
a hand vacuum pump
●
Accelerator pedal is fully released
0.15 - 0.85V
[Ignition switch: ON]
●
Engine stopped
●
Accelerator pedal is fully depressed
3.5 - 4.7V
42
B/W
Sensor power supply
[Ignition switch: ON]
Approximately 5V
43
BR
Sensor ground
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
Items
Specifications
Ignitions timing
10
± 5° BTDC
Base idle speed
700
± 50 rpm (in P or N position)
Closed throttle position switch idle
position adjustment
Feeler gauge thickness and switch
condition
0.3 mm (0.012 in): ON
0.4 mm (0.016 in): OFF
Target idle speed
750
± 50 rpm (in P or N position)