Toyota Fj Cruiser Will Not Read 100% Throttle
1GR-FE ENGINE Control SYSTEM – SFI System
ES–123
ES
DTC No.
DTC Detection Atmospheric condition
Trouble Areas
P0120
Output voltage of VTA1 quickly fluctuates beyond lower and
upper malfunction thresholds for 2 seconds when accelerator
pedal depressed (one trip detection logic)
•
Throttle Position (TP) sensor (built into throttle body)
•
ECM
P0122
Output voltage of VTA1 0.2 V or less for 2 seconds when
accelerator pedal depressed (i trip detection logic)
•
TP sensor (built into throttle torso)
•
Brusque in VTA1 circuit
•
Open up in VC excursion
•
ECM
P0123
Output voltage of VTA1 4.535 V or more for ii seconds when
accelerator pedal depressed (1 trip detection logic)
•
TP sensor (built into throttle body)
•
Open up in VTA1 circuit
•
Open in E2 circuit
•
Brusk between VC and VTA1 circuits
•
ECM
P0220
Output voltage of VTA2 quickly fluctuates beyond lower and
upper malfunction thresholds for 2 seconds when accelerator
pedal depressed (one trip detection logic)
•
TP sensor (congenital into throttle body)
•
ECM
4.65
VTA2
VTA1
2.55
ii.25
0.93
0.69
5.0
Fail Safe Angle
Usable Range
Throttle Valve Opening Bending (degrees)
Sensor Output Voltage (V)
84°
6°
0°
ECM
VC
E2
VTA1
VTA2
Magnet
Magnet
IC No. 1
IC No. ii
Throttle Position Sensor
Notation:
The throttle valve opening angle detected by the sensor terminal
VTA1 is expressed as a percentage.
Between 10 % and 22 %: Throttle valve fully airtight
Between 66 % and 98 %: Throttle valve fully open
Approximately 19 %: Fail-condom angle (half dozen°)
A122559E02
ES–124
1GR-Atomic number 26 ENGINE Control SYSTEM – SFI SYSTEM
ES
HINT:
•
When any of these DTCs are gear up, check the throttle valve opening angle by selecting the post-obit
card items on an intelligent tester: DIAGNOSIS / ENHANCED OBD Two / DATA Listing / ETCS /
THROTTLE POS #1 AND THROTTLE POS #2.
•
THROTTLE POS #1 denotes the VTA1 signal, and THROTTLE POS #2 denotes the VTA2 bespeak .
Reference (Normal Status)
MONITOR DESCRIPTION
The ECM uses the Throttle Position (TP) sensor to monitor the throttle valve opening angle. There are
several checks that the ECM performs to confirm the proper operation of the TP sensor.
•
A specific voltage divergence is expected between the sensor terminals, VTA1 and VTA2, for each
throttle valve opening angle. If the difference between VTA1 and VTA2 is incorrect, the ECM interprets
this as a malfunction in the sensor, and sets a DTC.
•
VTA1 and VTA2 each take a specific voltage range. If VTA1 or VTA2 is outside the normal operating
range, the ECM interprets this as a malfunction in the sensor, and sets a DTC.
•
VTA1 and VTA2 should never be close to the same voltage level. If VTA1 is within 0.02 V of VTA2, the
ECM determines that there is a short circuit in the sensor, and sets a DTC.
If the malfunction is non repaired successfully, a DTC is set 10 seconds after the engine is next started.
MONITOR STRATEGY
P0222
Output voltage of VTA2 1.75 Five or less for ii seconds when
accelerator pedal depressed (1 trip detection logic)
•
TP sensor (built into throttle body)
•
Short in VTA2 circuit
•
Open in VC excursion
•
ECM
P0223
Output voltage of VTA2 4.eight V or more than, and VTA1 between 0.2
V and ii.02 V, for ii seconds when accelerator pedal depressed
(1 trip detection logic)
•
TP sensor (built into throttle body)
•
Open in VTA2 excursion
•
Open up in E2 circuit
•
Curt between VC and VTA2 circuits
•
ECM
P2135
Either condition (a) or (b) met (i trip detection logic)
(a) Difference between output voltages of VTA1 and VTA2 0.02
Five or less for 0.five seconds or more
(b) Output voltage of VTA1 0.2 V or less, and VTA2 1.75 V or
less, for 0.iv seconds or more
•
Brusque between VTA1 and VTA2 circuits
•
TP sensor (built into throttle body)
•
ECM
Tester Display
Accelerator Pedal Fully Released
Accelerator Pedal Fully Depressed
THROTTLE POS #i
0.5 to ane.one Five
three.3 to 4.9 V
THROTTLE POS #2
ii.one to three.1 Five
4.6 to 5.0 V
Related DTCs
P0120: Throttle position sensor 1 range check (Fluctuating)
P0122: Throttle position sensor one range check (Low voltage)
P0123: Throttle position sensor 1 range check (High voltage)
P0220: Throttle position sensor two range check (Fluctuating)
P0222: Throttle position sensor 2 range cheque (Low voltage)
P0223: Throttle position sensor 2 range check (High voltage)
P2135: Throttle position sensor range cheque (Correlation)
Required Sensors/Components (Main)
Throttle position sensor
Required Sensors/Components (Related)
-
Frequency of Operation
Continuous
Duration
2 seconds: P0120, P0122, P0123, P0220, P0222 and P0223
(Accelerator pedal ON)
10 seconds: P0120, P0122, P0123, P0220, P0222 and P0223
(Accelerator pedal OFF)
Within 0.five seconds: P2135
MIL Operation
Firsthand
Sequence of Operation
None
DTC No.
DTC Detection Conditions
Trouble Areas
1GR-Fe ENGINE Control System – SFI Organization
ES–125
ES
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
P0120:
P0122:
P0123:
P0220:
P0222:
P0223:
P2135:
COMPONENT OPERATING RANGE
FAIL-SAFE
When any of these DTCs, as well equally other DTCs relating to ETCS (Electronic Throttle Control System)
malfunctions, are set, the ECM enters neglect-safety mode. During fail-safe style, the ECM cuts the current to
the throttle actuator off, and the throttle valve is returned to a 6
° throttle angle by the return leap. The
ECM then adjusts the engine output past decision-making the fuel injection (intermittent fuel-cutting) and ignition
timing, in accordance with the accelerator pedal opening bending, to allow the vehicle to go on at a
minimal speed.
If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.
Neglect-rubber way continues until a pass condition is detected, and the ignition switch is and then turned OFF.
Monitor runs whenever post-obit DTCs not present
None
VTA1 voltage
0.2 V or less, or 4.535 V or more
VTA1 voltage
0.ii V or less
VTA1 voltage
4.535 V or more
VTA2 voltage
1.75 5 or less, or 4.8 V or more than
VTA2 voltage
1.75 V or less
VTA2 voltage when VTA1 0.ii Five or more, and 2.02 Five or less
four.8 V or more
Either of following conditions A or B met:
-
Condition A
-
Difference between VTA1 and VTA2 voltages
0.02 5 or less
Condition B
-
VTA1 voltage
0.2 Five or less
VTA2 voltage
1.75 V or less
VTA1 voltage
0.69 to 4.05 V
VTA2 voltage
two.25 to 4.8 V
ES–126
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
WIRING DIAGRAM
INSPECTION Process
HINT:
•
If other DTCs relating to different systems that have concluding E2 every bit the ground concluding are output
simultaneously, terminal E2 may have an open circuit.
•
Read freeze frame data using an intelligent tester. Freeze frame information tape the engine condition when
malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle
was moving or stationary, if the engine was warmed up or non, if the air-fuel ratio was lean or rich, and
other data, from the time the malfunction occurred.
(a) Connect an intelligent tester to the DLC3.
(b) Plough the ignition switch ON and turn the tester ON.
(c) Select the post-obit menu items: DIAGNOSIS /
ENHANCED OBD 2 / Data LIST / ETCS / THROTTLE
POS #i and THROTTLE POS #2.
(d) Check the values displayed on the tester.
Result
one
READ VALUE USING INTELLIGENT TESTER (THROTTLE POS #one AND THROTTLE POS
#2)
3
4
Throttle Position Sensor (Built into Throttle Body)
ECM
VTA
VC
VTA2
E2
VTA1
VC
VTA2
E2
5 V
5
vi
B14
B1
B1
B1
B1
xx
23
19
28
A133411E01
TP#1 (VTA1)
When Accelerator
Pedal Released
TP#ii (VTA2)
When Accelerator
Pedal Released
TP#i (VTA1)
When Accelerator
Pedal Depressed
TP#2 (VTA2)
When Accelerator
Pedal Depressed
Trouble Areas
Proceed To
0 to 0.two V
0 to 0.two 5
0 to 0.2 V
0 to 0.two Five
VC excursion open
A
4.v to 5.0 V
4.v to 5.0 Five
4.5 to 5.0 Five
4.5 to 5.0 5
E2 circuit open
A
0 to 0.two V, or 4.5 to
v.0 V
two.1 to 3.1 V
(Fail-safe)
0 to 0.two V, or 4.5 to five.0 Five
2.1 to 3.ane V
(Fail-safe)
VTA1 circuit open
or ground brusque
A
Approximately 0.93
Five
(Fail-safe)
0 to 0.2 V,
or 4.5 to 5.0 V
Approximately 2.55 V
(Fail-prophylactic)
0 to 0.2 Five,
or iv.five to v.0 5
VTA2 excursion open up
or basis short
A
Source: https://drivermanuals.ru/Toyota/Toyota_FJCruiser_GSJ_10_15_series_2007_english_copia/page-042.html
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