What is the P2135 fault codes? How can you fix Throttle Position Sensor B and A Sensor Signals Missmatch (Correlation Error), and what is Throttle Position Sensor? What causes P2135 fault code Fault code P2135 ….. Symptoms and solutions
What does P2135 Fault Code mean?
P2135 stands for “Throttle / Throttle Position Sensor / Switch A/B voltage Correlation” diagnostic trouble code. If the ECU / PCM detects an issue with one of these sensors, it will turn on the check engine lamp and generate this malfunction code.
Your throttle may be faulty if your vehicle experiences a decreased engine performance, difficulty accelerating, misfires, or stalling at low speeds. You will experience problems driving until the problem has been resolved and the code cleared.
What do Throttle (TP), and Accelerator Position Sensors Do?
In the 1990s, automobile manufacturers began installing “Drive by Wire.” Throttle control technology. The goal is to improve emissions control, fuel economy, and transmission response. The throttle control was previously done by a simple cable that ran between the accelerator pedal, throttle and throttle. The throttle position sensor (TPS), is located opposite to the throttle linkage. TPS converts movement and position of throttle into a voltage signal. This signal is sent to the engine management computer in order to generate the engine control strategy. The new “Electronic Throttle Control.” Technology consists of an electronic controlled throttle body, an accelerator pedal position sensor and two embedded throttle position sensors to determine correlation factors.
These two TP sensors connect to the throttle body. This throttle body is connected to your vehicle’s engine intake system. Air can enter the engine through the throttle. The throttle opens more easily when you press down on the pedal. The throttle position sensors send information to the ECU about the position of your throttle blade, which allows you to calculate the amount of air entering your engine.
The position sensors on the accelerator pedal are responsible for monitoring how hard you press it.
Why is the P2135 Fault code Triggered
Normal conditions should allow both sensors to correlate. Both TP sensors 1 and 2 should have similar data. The same goes for both pedal position sensors. If the data are not connected and the ECU receives different data from any other sensors, the P2135 fault codes will be triggered. A logical error could be caused by one sensor reading the throttle position half-open and the other fully closed. Another example is when the accelerator pedal presses 60%, the throttle plate must also open 60%. These two sensors should send equal signals to the ECU. The system will function properly if both voltages are equal. If they differ by more than two seconds, code 2135 is set. This indicates that there is a problem somewhere in the system. Additional trouble codes can be added to this code, which further describes the problem. This can make it dangerous if you lose control of the throttle.
Is the P2135 Fault Code Severe?
A misfire may be caused by P2135 fault code. This fault code can cause misfires.
What are the Common Symptoms of the P2135 Fault code?
- Low engine power. Your vehicle could enter “Limp Mode/Engine Save Mode”.
- It is difficult to stop, cut and accelerate when the gas pressure is applied.
- Don’t stop after you stop.
- RPM fluctuations are possible without pressing the accelerator pedal.
- Higher-than-normal revolutions per Minute (RPM).
- The Check Engine lamp is on.
Causes of the P2135 Fault code
- Problems and malfunctions in the throttle or accelerator pedal position sensor sensors
- Problems with the throttle body
- Terminal connectors that have been damaged or corroded
- Cable issues: Faulty, damaged, or corroded
- Probleme with the ECU / PCM
- Use of the wrong grease dielectric (no, or very low electrical conductivity).
How do you diagnose P2135 fault code?
Use an OBD2 scanner tool to scan both the TP sensor signals when your vehicle is stationary and idle. Normalerweise, the Sensor 1 and Sensor 2 values will differ. The only thing you can check is the correlation between the rate and acceleration when you push the gas pedal. You can slowly accelerate your vehicle while it is idle and check if the voltage outputs are rising evenly. If the voltage outputs increase unevenly, or if any of the sensors experience a significant decrease or increase, that means that the code was activated by that sensor.
Continue monitoring the data and checking the cables underneath the hood. To check if the signal from the sensor is affected, twist the wires. Let someone continue to push the gas.
After the engine has been stopped, take out the TP sensor connectors. Check for corrosion. Check the wiring for wear and shorts.
Sometimes, cleaning the throttle body will solve the problem. This can be done with a brush or an aerosol electronic cleaner.
If none of this works, the sensor that is faulty must be replaced.
NOTE: The P2135 code fault is the same as the P2136,P2138,P2138,P2139, and P2140 codes fault. All codes can be fault diagnosed in the same manner.
