1. Introduction
This instruction manual provides essential information for the proper installation, connection, and maintenance of the Volkswagen 1J0973704 OEM Housing. This component is a genuine Volkswagen part designed specifically as a connector for the brake pressure sensor in compatible vehicles. Adhering to these instructions will ensure correct function and longevity of the part.
2. Product Overview
The Volkswagen 1J0973704 OEM Housing is a critical electrical connector component. It is manufactured to meet Volkswagen's stringent specifications for fit, form, and function, ensuring seamless integration with your vehicle's existing systems. Its primary role is to provide a secure and reliable connection for the brake pressure sensor.

Figure 1: Volkswagen 1J0973704 OEM Housing. This image displays the Volkswagen 1J0973704 OEM Housing, which serves as a connector for the brake pressure sensor. Observe its design and connection points for proper identification.
3. Setup and Installation
Proper installation is crucial for the correct function of the brake pressure sensor. It is recommended that installation be performed by a qualified technician.
3.1 Safety Precautions
- Ensure the vehicle's ignition is off and the battery is disconnected before beginning any electrical work.
- Wear appropriate personal protective equipment (PPE), such as gloves and eye protection.
- Refer to your vehicle's specific service manual for detailed instructions regarding brake system components.
3.2 Installation Steps
- Locate the Brake Pressure Sensor: Identify the existing brake pressure sensor and its connector in your vehicle. Consult your vehicle's service manual for the exact location.
- Disconnect Old Housing (if applicable): Carefully disconnect the old connector housing from the brake pressure sensor. Observe the locking mechanism and release it gently to avoid damage.
- Inspect Wiring: Examine the vehicle's wiring harness for any signs of damage, corrosion, or wear. Repair any issues before proceeding.
- Connect New Housing: Align the Volkswagen 1J0973704 OEM Housing with the brake pressure sensor. Ensure the pins are correctly oriented.
- Secure Connection: Push the housing firmly onto the sensor until the locking mechanism engages. A distinct click may be heard, indicating a secure connection. Gently tug on the housing to confirm it is properly seated and locked.
- Reconnect Battery: Once the housing is securely connected, reconnect the vehicle's battery.
- Test System: After installation, perform a functional test of the brake system to ensure the brake pressure sensor is operating correctly and there are no warning lights on the dashboard.
4. Function and Operation
The 1J0973704 OEM Housing serves as the electrical interface for the brake pressure sensor. Its function is to provide a stable and reliable electrical connection, allowing the brake pressure sensor to accurately transmit data to the vehicle's Electronic Control Unit (ECU). This data is crucial for various vehicle systems, including Anti-lock Braking System (ABS), Electronic Stability Program (ESP), and other braking assistance features. The housing itself does not perform any active operation but ensures the integrity of the sensor's signal path.
5. Maintenance
The Volkswagen 1J0973704 OEM Housing is designed for durability and minimal maintenance. However, periodic inspection can help ensure its continued reliability.
- Visual Inspection: During routine vehicle maintenance, visually inspect the connector housing for any signs of physical damage, cracks, or discoloration.
- Corrosion Check: Check for any signs of corrosion on the electrical terminals. If corrosion is present, disconnect the battery and carefully clean the terminals using an appropriate electrical contact cleaner.
- Secure Connection: Ensure the housing remains securely connected to the brake pressure sensor. A loose connection can lead to intermittent sensor readings.
- Avoid Contaminants: Keep the connector free from dirt, moisture, and automotive fluids, which can degrade its performance over time.
6. Troubleshooting
If you experience issues related to the brake pressure sensor after installation, consider the following troubleshooting steps:
- Check Connection: Verify that the 1J0973704 OEM Housing is fully seated and securely locked onto the brake pressure sensor.
- Inspect Wiring: Examine the wiring leading to the connector for any breaks, pinches, or damaged insulation.
- Diagnostic Scan: Use an automotive diagnostic scanner to check for any fault codes related to the brake pressure sensor or braking system. This can help pinpoint the exact nature of the problem.
- Professional Assistance: If issues persist, it is recommended to seek assistance from a certified Volkswagen service technician.
7. Specifications
| Feature | Detail |
|---|---|
| Part Number | 1J0973704 |
| Brand | Volkswagen |
| Component Type | Brake Pressure Sensor Connector Housing |
| Mounting Type | Flange Mount |
| Style | Modern |
| ASIN | B00PV72SUW |
| Date First Available | November 22, 2016 |
8. Warranty and Support
As a genuine Volkswagen part, this product is typically covered by Volkswagen's standard parts warranty. Please refer to your purchase documentation or contact your authorized Volkswagen dealer for specific warranty terms and conditions. For technical support or further assistance, please contact your local Volkswagen service center or visit the official Volkswagen website.





