Removing the Anti-lock Braking System (ABS) module in vehicles, particularly during modifications or when using donor parts with specific build codes like JL9, often triggers warning lights on the dashboard. These typically include the ABS light, Traction Control light, and sometimes even the Brake light. While some warning lights are expected, the persistent brake light can be concerning as it usually indicates critical safety issues like low brake fluid or parking brake engagement.
For those looking to resolve this issue efficiently, especially in projects like kit car builds where ABS is intentionally omitted, the solution lies in using OBD2 (On-Board Diagnostics II) tools. An innovative approach to disabling the ABS light and restoring the crucial brake light functionality involves utilizing an OBD2 emulator.
These emulators, like the “Goblin ABS Emulator,” are designed as plug-and-play modules that connect to your vehicle’s diagnostic port. By emulating a functioning ABS module, the vehicle’s computer system no longer detects a missing or malfunctioning ABS, effectively turning off the unwanted warning lights. This method ensures that the essential brake light functionality for low brake fluid and parking brake status is preserved, maintaining vehicle safety.
Key benefits of using an OBD2 emulator to disable the ABS light include:
- ABS Light Deactivation: Successfully turns off the ABS warning light on the instrument cluster.
- Traction Light Deactivation: Also disables the Traction Control warning light, often illuminated alongside the ABS light.
- Restored Brake Light Functionality: Crucially, retains the brake light’s ability to warn for genuine issues like low brake fluid and parking brake activation.
- Error Message Elimination: Prevents ABS and Traction related error messages from appearing in the vehicle’s information center.
- Simple Installation: Offers a plug n’ play setup, eliminating the need for complex wiring modifications.
For users who need to keep their diagnostic port free, options like OBD2 splitter cables or parallel OBD2 pigtails can be implemented. These alternatives allow the ABS emulator to connect to the high-speed GMLAN bus via essential pins (B+, Ground, HS GMLAN+, HS GMLAN-) without occupying the primary diagnostic port.
In conclusion, for builders and modifiers encountering persistent ABS lights after module removal, utilizing an OBD2 emulator presents a straightforward and effective solution. It not only disables nuisance warning lights but also ensures the continued operation of critical safety indicators, all while offering a simple, plug-and-play installation via the OBD2 port.
