What Is the P1135 Code?
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The P1135 OBD-II code is a diagnostic trouble code (DTC) that is a manufacturer-specific code, meaning that it can signal various issues with your vehicle depending on your vehicle’s manufacturer. In this case, a P1135 – Pedal Position Sensor A Circuit Intermittent code is specific to Ford vehicles. It is stored when the voltage from the Pedal Position Sensor does not match the voltage being received by the Throttle Position Sensor. More precisely, this code is triggered in Ford vehicles when the voltage abruptly changes from 0 to 5 volts from the set value in a short time period.
The Pedal Position Sensor (PPS) functions by transmitting information regarding the vehicle’s accelerator (gas pedal) to the vehicle’s Powertrain Control Module (PCM). The PSS provides the PCM with the needed information regarding the throttle movement. This sensor is most commonly found on the engine’s throttle body, but it can sometimes be found on the gas pedal. Regardless of where the PSS is located in a Ford vehicle, the starting voltage is always 0.5 volts. The PSS sensor sends a signal between 0 and 5 volts to the PCM. When the voltage is above 0.5 volts, this signals that the vehicle is no longer idling. When the voltage is precisely at 0.5 volts, this signals that the engine is at idle speed. When voltage is up to 4 to 4.5 volts, this signals that the throttle is wide open. The voltage will vary depending on the driver’s input from the gas pedal.
A vehicle’s PCM is a computer (module) that is responsible for engine management to ensure that your vehicle operates at optimal performance. Your vehicle’s engine and powertrain are entirely controlled by a computer network, its modules, and its actuators, such as the throttle body in this case. Like all other modules found in modern vehicles, the PCM communicates with other modules by sending information it receives from sensors, actuators, etc.
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What Are the Symptoms of a P1135 Code?
The most common symptom of a P1135 code in Ford vehicles is that your vehicle may, at any time, encounter problems during acceleration and experience sudden bucking or surging while driving. Fuel efficiency may also be negatively affected when a P1135 code is triggered in Fords. Typically, your Ford vehicle’s Check Engine Light will turn on when a P1135 code is stored. If you notice your Check Engine Light has come on or your car is experiencing problems with acceleration or sudden bucking or surges while driving, you should immediately bring it in for a proper diagnosis by a certified Ford technician
What Are Some Causes of a P1135 Code?
There can be a variety of causes of a P1135 code in Ford vehicles. A faulty PCM or Pedal Position Sensor are some possible causes. Other possible causes include wiring damages that result in intermittent operation of the Pedal Position Sensor. This can consist of an intermittent open or short to ground in the power supply circuit to the Pedal Position Sensor. It may also be due to an intermittent open in the ground or signal circuit to the Pedal Position Sensor. Other causes include a short in the ground or 5-volt signal circuit of the Pedal Position Sensor.
How Serious Is the P1135 Code?
The P1335 code is a very serious issue as it often results in problems with the acceleration of your Ford vehicle or drivability issues as the engine may result in the vehicle bucking or surging while driving. As such, this can pose a serious threat to you or others should you experience it in traffic. Therefore, a P1335 code should be addressed immediately by a certified Ford technician.
Can I Still Drive with a P1135 Code?
While most Ford vehicles with a P1335 code are technically drivable, this by no means indicates that they should be driven for extended periods of time. If your vehicle’s Check Engine Light has turned on and you are experiencing acceleration or drivability issues, you should take your vehicle to your nearest certified Ford mechanic as soon as possible. Due to safety reasons, it is recommended to have your car towed to your nearest Ford mechanic, as driving with a P1335 code stored poses serious risks to you and others on the road.
For a more detailed list of service centers near you, visit KBB’s service center list.
How Easy Is It to Diagnose a P1135 Code?
Diagnosing a P1335 code issue correctly is no easy task and requires the use of proper diagnostic equipment to diagnose and repair properly. The use of special scanning tools is required that monitor the voltage signals coming from the Pedal Position Sensor. Certified Ford technicians compare the voltage signal results they obtain with the manufacturer’s specifications, and if there is a significant discrepancy, the Pedal Position Sensor is often replaced. Because of the specific diagnostic equipment and knowledge necessary for proper diagnosis, certified Ford technicians should perform the diagnostic procedure.
How Difficult Is It to Inspect a P1135 Code?
Inspecting a P1335 code issue requires a thorough visual inspection of all of the vehicle’s wiring and connectors related to the Pedal Position Sensor. If any of the Pedal Position Sensor’s wiring, connectors, and other components show any visible signs of damage or corrosion, they are then replaced by the certified technician.
Need Additional Help with Your P1135 Code?
Because of the complexity of the entire Pedal Position Sensor system in your vehicle that involves various wires, connectors, and other components, a DIY is highly not recommended for a P1335 code issue.
For more information on the P1335 and other diagnostic codes, visit KBB’s vast library of OBD-II codes.
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