An Obd2 Hud Speedometer projects your vehicle’s speed onto your windshield, offering a convenient and futuristic driving experience. This guide explores a common issue with these devices, specifically in a 2001 Toyota Tundra, and provides a solution to a problematic ABS light triggered by the HUD.
Troubleshooting ABS Light Activation with an OBD2 HUD Speedometer
After installing an iKiKin M7 dual-mode OBD2 HUD speedometer in a 2001 Toyota Tundra, an unexpected issue arose: the ABS warning light began flashing upon starting the vehicle. Disconnecting the HUD resolved the issue, pointing to a conflict between the device and the vehicle’s ABS system. Further investigation revealed the culprit: pin 11 on the OBD2 connector of the speedometer.
Identifying the Problematic Pin on the OBD2 Connector
Before resorting to removing any pins, a systematic approach was used to pinpoint the problematic connection. Using needle-nose pliers, pins 9, 10, and 11 were individually bent downwards within the connector housing. After bending each pin, the HUD was reconnected and the vehicle started to test for ABS light activation. This process of elimination identified pin 11 as the source of the conflict.
Resolving the Issue: Removing Pin 11
Caution: Bending a pin allows for reversal if it’s not the cause. Removing a pin is permanent. Always test before removing.
Once pin 11 was confirmed as the problem, it was carefully removed from the OBD2 connector of the speedometer, not the vehicle’s OBD2 port. This resolved the ABS light issue without affecting the functionality of the HUD speedometer. The likely cause is a short circuit within the pin 11 connection.
Enjoying Your OBD2 HUD Speedometer
With pin 11 removed, the OBD2 HUD speedometer functions correctly, providing a clear heads-up display of the vehicle’s speed without triggering the ABS warning light. This simple fix allows drivers to enjoy the benefits of a HUD without compromising vehicle safety. Remember to always exercise caution when modifying electrical connections in your vehicle.
