The C1201 brake boost sensor circuit range/performance code is one of the more common codes to pop up on your OBD-II scanner. If you’ve never seen this code before, don’t worry; we’ll explain what it means and how you can fix it.
What is the C1201 Brake Boost Sensor?
The C1201 brake boost sensor is a pressure sensor that detects the amount of pressure exerted on the brake pedal. The sensor then sends a signal to the electronic control unit (ECU), which uses it to determine how much brake force to apply. If the C1201 brake boost sensor is not functioning properly, it can cause the brakes to feel spongy or unresponsive. In some cases, it may also cause the ABS light to come on.
The C1201 code indicates that there is a problem with the brake boost sensor circuit. This sensor is responsible for monitoring the amount of vacuum pressure in the brake booster, and when it detects a problem, it will set off the C1201 code. There are a few different ways to fix the C1201 code, but the most common method is to simply replace the brake boost sensor. In some cases, you may also need to clean or adjust the connector or wiring.
What Does the C1201 Brake Boost Sensor Circuit Range?
The C1201 brake boost sensor monitors the pressure in the brake booster and sends a signal to the ECM. The ECM uses this information to determine if the brake booster is functioning properly. If the pressure in the brake booster is too low, the ECM will set a diagnostic trouble code (DTC) and the check engine light will come on. The C1201 Brake Boost Sensor Circuit Range/performance is from 0 to 5 volts.
How to Test the C1201 Brake Boost Sensor performance?
The C1201 brake boost sensor is located on the master cylinder and monitors the pressure of the brake fluid. To test the performance of the sensor, follow these steps:
- Pump the brakes several times to build up pressure in the system.
- With the engine off, slowly depress the brake pedal and hold it down. The pedal should sink close to the floor but not completely bottom out. If it does bottom out, there may be a leak in the system.
- With the brake pedal still depressed, start the engine. The pedal should rise slightly as vacuum builds in the system. If there is no change in pedal height, or if the pedal rises too high, there may be a problem with the sensor or booster.
- Check for leaks in the system by feeling around all of the connections and hoses for dampness or drips while someone else depresses the brake pedal slowly.
Symptoms of a Faulty C1201 Brake Boost Sensor
When the C1201 brake boost sensor isn’t working properly, it can cause a number of symptoms. The most common symptom is the check engine light coming on. Other symptoms can include the car not starting, the brakes not working properly, and the power steering not working properly. If you experience any of these symptoms, it’s important to take your car to a mechanic to have it checked out.
How to Fix the C1201 Brake Boost Sensor?
If the C1201 Brake Boost Sensor is not working properly, it can be fixed by replacing the sensor. The process is as follows:
- Remove the old sensor from the vehicle.
- Install the new sensor in the same location as the old one.
- Connect the new sensor to the brake booster.
- Test the new sensor to ensure it is working properly.
The C1201 brake boost sensor circuit is an important part of your vehicle’s braking system. If you suspect that there may be a problem with this sensor, it is important to have it checked out by a professional as soon as possible. A brake boost sensor that is not functioning properly can cause your vehicle to brake inconsistently, which could lead to an accident.
FAQs About C1201 Brake Boost Sensor Circuit Range/performance
What is brake boost sensor circuit range performance code C1201?
The C1201 code is a common issue within the automotive industry and typically results from either poor electrical connection or physical damage to a wiring harness. The affected components control operating voltage levels, so when the circuit’s integrity is disrupted, the ABS module picks up on it due to its constant monitoring of performance. Repairing this issue often requires an understanding of how these components interact and proper diagnosis to identify where the fault lies.
What is brake boost sensor circuit range performance?
The OBD-II Code Powertrain Control Module (PCM) failure is defined as a Brake Booster Pressure Sensor Circuit Range/Performance. It indicates that PCM has detected an issue with the brake booster pressure sensor circuit, which is connected to the brake booster via a hose. This code can be indicative of several underlying problems and should be addressed promptly to prevent further damage or safety risks.
What does a brake booster pressure sensor do?
The brake booster pressure sensor is an important tool in the operation of a vehicle. It accurately measures the relative pressure between the applied pressure and atmospheric pressure using strain-sensitive piezo-resistors which are embedded into a silicon MEMS die membrane. This allows for precise monitoring of these two pressures, ensuring that the vehicle’s braking system operates properly.
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