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there is no adjustment on these tps's it's a drive by wire system. If you don't know the vehicle, dont post!
there's 2 sensors contained in the pedal sensor, and one on the throttle plate shaft, more often than not, it's the pedal sensor, and if you replaced that, it's the other one or a loose connection. did you reset the computer after replacing the pedal?
Testimonial: "thanks a million no information on installing & adjusting in repair manuel"
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1.5)TAC - Throttle Actuator Control What is it? Some vehicles have indirect throttle control "drive by wire". Instead of the accelerator pedal position being conveyed directly to the throttle plate by cable linkage, it is detected by an electrical sensor and this is fed to the ECU.The ECU in turn sets the position of the throttle plate appropriate to the sensed position using an electric motor.The throttle plate position is, in turn, checked by the throttle position sensor and this signal is sent to the ECU to confirm that the requested throttle plate setting and its recorded position are in agreement. Where is it located?The first part of the TAC is located on the inner wing/fender and consists of rotary device to which the accelerator cable is attached; the degree of rotation (pedal depression) is detected electrically and this is signalled to the ECU.The second part of the TAC is located on the throttle body and acts on the throttle plate shaft. Symptoms of a faulty TAC Associated OBD2 error codes DTCs:P0120, P0124, P1516; P2102, P2103;P2111 - P2118
Sudden power loss/limp home: If the ECU detects any fault with the throttle actuator control directly or with the position feedback via the TPS it engages an immediate engine shut-down to either idle speed or limp-home speed.
How to fix? The TAC is part of complex systemand the failure of the TPS has to be eliminated first as a possible source of error.A simple electrical connection failure can also give rise to the shutdown so all associated connections should be checked to ensure that they are clean and bright to allow electrical continuity.
P2110...Faulty Throttle Actuator Control Module
- Throttle Actuator Control Module harness is open or shorted
- Throttle Actuator Control Module circuit poor electrical connection
P2118 - Electronic Throttle Control(ETC) system is made of the components throttle body, Throttle Position Sensor(TPS)1&2 and Accelerator Position Sensor(APS) 1&2. The throttle body contains the actuator, the throttle plate and the throttle position sensor (potentiometer), which are integrated in one housing. The actuator consists of a DC motor with a two-stage gear. 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 control the throttle valve opening angle properly in response to the driving condition.
Faulty electric throttle control actuator, throttle position sensor 2
Faulty throttle control actuator harness is open or shorted, throttle position sensor 2
Electric throttle control actuator circuit has poor electrical connection, throttle position sensor 2
To nail down the exact cause of the code, do a visual inspection for lose wires and connections at the sensor, or damage to the sensor body itself. If no problems with the wiring and connections are detected, a worn/damaged electric throttle control actuator is likely at fault. Signs of a bad throttle control actuator include erratic acceleration, and unresponsive throttle, and poor fuel economy.
• Powertrain Control Module Description for the 2.8L engine
• Powertrain Control Module Description for the 3.5L engine
Throttle Actuator Control (TAC) System
Throttle Actuator Control (TAC) Overview
The throttle actuator control (TAC) system uses vehicle electronics and components to calculate and control the position of the throttle blade. This eliminates the need for a mechanical cable attachment from the accelerator pedal to the throttle body. This system also performs the cruise control functions as well.
The TAC system components include, but are not limited to the following:
• The accelerator pedal position (APP) sensors
• The throttle body
• The powertrain control module (PCM)
Each of these components interface together to ensure accurate calculations and control of the throttle position.
Accelerator Pedal Position (APP) Sensor
The accelerator pedal position (APP) sensor is mounted on the accelerator pedal assembly. The APP is 2 individual APP sensors within one housing. There are 2 separate signal, low reference, and 5-volt reference circuits. APP sensor 1 voltage increases as the accelerator pedal is depressed. APP sensor 2 voltage decreases as the accelerator pedal is depressed.
Throttle Body Assembly
The throttle body for the throttle actuator control (TAC) system is similar to a conventional throttle body with several exceptions. One exception being the use of a motor to control the throttle position instead of a mechanical cable. Another exception is the throttle position (TP) sensor. The TP sensor is mounted in the throttle body assembly. The TP sensor is 2 individual TP sensors within the throttle body assembly. Two separate signals, low reference, and 5-volt reference circuits are used to connect the TP sensors and the powertrain control module (PCM). TP sensor 2 signal voltage increases as the throttle opens. TP sensor 1 signal voltage decreases as the throttle opens.
Reduced Engine Power Mode
When the PCM detects a problem with the throttle actuator control (TAC) system the PCM enters one of the following Reduced Engine Power Modes:
• Acceleration Limiting--The control module will continue to use the accelerator pedal for throttle control, however the vehicle acceleration is limited.
• Limited Throttle Mode--The control module will continue to use the accelerator pedal for throttle control, however the maximum throttle opening is limited.
• Throttle Default Mode--The control module will turn OFF the throttle actuator.
• Forced Idle Mode--The control module will perform the following actions:
- Limit engine speed to idle by positioning throttle position, or by controlling fuel and spark if throttle is turned OFF.
- Ignore accelerator pedal input.
• Engine Shutdown Mode--The control module will disable fuel and de-energize the throttle actuator.
Have you had it checked for DTC'S - diagnostic trouble codes ?
The commanded throttle position (TP) is compared to the actual TP. Both values should be within a calibrated range of each other. The powertrain control module (PCM) continuously monitors the commanded and actual TPs. If the values are greater than the calibrated range, DTC P2176 sets.
The accelerator pedal position (APP) sensors 1 and 2 are located within the accelerator pedal assembly. Each sensor has the following circuits:
• A 5-volt reference circuit
• A low reference circuit
• A signal circuit
This provides the powertrain control module (PCM) with a signal voltage proportional to accelerator pedal movement. The APP sensor 1 signal voltage at rest position is near the low reference and increases as the pedal is actuated. The APP sensor 2 signal voltage at rest position is near the 5-volt reference and decreases as the pedal is actuated.
The throttle actuator control (TAC) assembly has 2 throttle position (TP) sensors mounted within the assembly. The powertrain control module (PCM) provides individual signal, ground, and 5-volt reference circuits to each sensor. Both sensors operate within a voltage range between 0.35-4.65 volts. When the throttle is opened from 0-100 percent, one sensor signal voltage increases while the other decreases. The signal circuit for TP sensor 1 is referenced to ground, and the signal circuit for TP sensor 2 is pulled up to 5 volts within the PCM.
A THROTTLE POSITION SENSOR(TPS) is usually located on the butterfly spindle so that it can directly monitor the position of the throttle valve butterfly. Throttle actuator control(TAC), that code comes from that part of the system too.
code p2111 throttle actuator control system actuator stuck open. throttle actuator control system circuit malfunction. brake vacuum implausible signal. code p2112 throttle actuator control system actuator stuck closed.throttle actuator control system circuit malfunction. code p2135 accelerator pedal position sensor switch a b voltage correlation. throttle position sensor switch a b voltage correlation. electronic throttle position sensor switch 1 implausible signal. did not see code p210406 that code too long.
- Engine Light ON (or Service Engine Soon Warning Light) - No throttle response
- Harness or connector (The TP sensor circuit is open or shorted.) - Electric Throttle Control Actuator (or Throttle Body Motor) - Accelerator Pedal Position Sensor (APP)
Electric Throttle Control Actuator consists of throttle control motor,
throttle position (TP)sensor, etc. The throttle position sensor responds
to the throttle valve movement. The throttle position sensor
has the two sensors. These sensors are a kind of potentiometers which
transform the throttle valve position into output voltage, and emit the
voltage signal to the ECM. In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.
When is the code detected?
An unexpected voltage from the TP sensor is sent to ECM.