1. Introduction
This manual provides instructions for the installation and operation of the BANVIE Car Immobilizer Transponder Bypass Module. This module is designed to bypass the chip key immobilizer system in vehicles, primarily to enable the use of remote starters or push-button start systems. It is important to note that this device is a bypass module for chip keys only and is not a remote starter itself. It is compatible with most cars equipped with a chip key immobilizer and will not function with other types of immobilizer systems.
2. Product Overview
The BANVIE Car Immobilizer Transponder Bypass Module is a compact device designed to house a spare chip key or its transponder, allowing the vehicle's immobilizer system to be temporarily bypassed. This section provides a visual overview of the module.

Figure 2.1: Closed view of the BANVIE Transponder Bypass Module. The module is a black, rectangular case with 'TRANSPONDER BY PASS' embossed on the top surface.

Figure 2.2: Open view of the BANVIE Transponder Bypass Module, showing the internal circuit board and ribbon cable. The case opens to reveal the compartment where the chip key or transponder is placed.
3. Important Notes & Prerequisites
- A spare key with a transponder chip is required for this product. This key will be permanently housed within the bypass module.
- If your original key is too large to fit inside the bypass module's case, you must carefully remove the transponder chip or the entire Printed Circuit Board (PCB) from the key and place only the chip/PCB into the module.
- For vehicles equipped with a steering wheel lock, ensure it is released before installation. Refer to your vehicle's manual for specific instructions on releasing the steering wheel lock.
- The key from which the transponder is removed and placed into the bypass module will no longer be able to start the vehicle directly. However, it can still be used to drive the vehicle once the engine has been started remotely via the bypass module.
- This module is designed for chip key immobilizers only and will not work with other immobilizer types.
4. Installation Guide
Follow these steps carefully to install the BANVIE Car Immobilizer Transponder Bypass Module. A spare key with a transponder chip is essential for this process.
4.1. Preparing the Bypass Module
- Remove the screws from the bypass module's control box and carefully open the case.
- Identify the transponder from your spare key. This may involve opening a compartment on the key or disassembling the key to access the chip or PCB. If disassembling is not possible, the entire key head may be mounted inside the bypass module, provided it fits.
- Place the transponder, or the head of the key, inside the 10-wire loop on the circuit board within the module. Transponders are directional; ensure it is placed in the same orientation as the key would naturally lay.
- Use the provided double-stick foam tape: apply one layer to the circuit board, then place the transponder or key, and finally apply a second layer of tape on top to secure it firmly in place.
- Close the control box and tighten the screws to secure the case.

Figure 4.1: Diagram illustrating the placement of the key or transponder inside the bypass module case. Double-sided tape is used to secure the key/transponder on the circuit board.
4.2. Wiring Connections
The bypass module features a simple two-wire connection for installation.
- Connect the RED wire to a +12V power source.
- Connect the BLACK wire to the negative output of your alarm system or remote starter, specifically the transponder bypass negative output.

Figure 4.2: Wiring diagram showing connections for the bypass module. The red wire connects to +12V, and the black wire connects to the bypass negative output of the alarm system. The sensing wire is wrapped around the ignition lock.
4.3. Positioning the Sensing Loop
The sensing wire from the bypass module needs to be correctly positioned around the vehicle's ignition system.
- Circle the sensing wire around the OEM car key socket (ignition lock cylinder). Circling the wire multiple times can enhance the signal strength.
- The transponder loop should be positioned underneath the steering column and routed upwards towards the ignition key cylinder. It needs to make at least two turns around the transponder antenna ring. This antenna ring is typically a black plastic ring located around the outside of the ignition lock cylinder, near where the key is inserted.
- Securely fasten the sensing wires to the car key socket, possibly using glue or tape, to ensure they remain in position.

Figure 4.3: Diagram illustrating the connection of the bypass module to the ignition lock. The red wire connects to +12V, the black wire to the alarm's negative output, and the sensing wire is wrapped around the ignition cylinder.
4.4. Testing and Final Placement
- After completing the connections, attempt to start the car engine to confirm that the bypass module is working correctly.
- If the engine does not start, try circling the sensing wire more times around the car key socket or double-check all connections for accuracy.
- Once confirmed operational, place the bypass module in a hidden, secure location within the vehicle.
5. Operation
Once properly installed and configured, the BANVIE Car Immobilizer Transponder Bypass Module operates passively. When a remote start or push-button start command is initiated, the module activates, allowing the vehicle's immobilizer system to recognize the embedded chip key. This enables the engine to start without the physical key being in the ignition. The module remains active only during the remote start sequence or as required by the connected alarm/remote start system.
6. Troubleshooting
- Engine Does Not Start:
- Ensure all wiring connections (RED to +12V, BLACK to alarm's negative output) are secure and correct.
- Verify that the sensing wire is wrapped sufficiently around the ignition key socket. Try adding more turns to enhance the signal.
- Confirm that the spare chip key or transponder is correctly placed and secured within the bypass module and is oriented correctly.
- Check if your vehicle has a steering wheel lock and ensure it is disengaged.
- Interference with Original Key: If using a blank key with a chip in the ignition while the bypass module is active, it may interfere with the embedded chip. It is recommended to use a non-chipped key for turning the ignition if the bypass module is intended to be active.
- Module Not Powering On: Check the +12V power connection for the RED wire and ensure the ground connection for the BLACK wire is solid.
7. Specifications
| Item Model Number | 8542135717 |
| Brand | BANVIE |
| Compatible Devices | Cars with Chip Key Immobilizer |
| Item Weight | 2.4 ounces |
| Product Dimensions | 3.35 x 2.36 x 0.98 inches |
| UPC | 709327570820 |
| Remote Control Included? | No |
8. Maintenance
The BANVIE Car Immobilizer Transponder Bypass Module is designed for maintenance-free operation. There are no user-serviceable parts inside the module. Ensure the module is kept dry and free from extreme temperatures. Periodically check the wiring connections for any signs of wear or looseness.
9. Warranty and Support
Specific warranty information for the BANVIE Car Immobilizer Transponder Bypass Module is not provided in this manual. For warranty details, technical support, or further assistance, please refer to the product packaging or contact BANVIE customer service directly through their official channels.