Skip to main content

How to Check and Replace a Fuse in the T3 Dash Cam

Instructions on how to check for a blown fuse on a T3 Dash Cam should you encounter connectivity issues.

Breanne Cassidy avatar
Written by Breanne Cassidy
Updated this week

Fuses protect electrical circuits and components from excessive current. When the current exceeds a safe limit, the fuse breaks the connection by melting a thin internal metal strip, stopping the flow of electricity and preventing potential damage to the T3 Dash Cam device. You will need a fuse puller and multimeter to perform this check.

Locating the Fuse

You will find the fuses encased in red, attached to the power box of the camera.

Note: If the harness is secured with zip ties, you may need to cut them to access the fuse. Be sure to re-secure both the accelerometer and the harness afterward.

Step 1: Remove the Fuse

  1. Use a fuse puller to safely remove the fuse from its slot.

  2. Perform a visual inspection: Look for a break or gap in the metal strip inside the fuse.

⚠️ A fuse may look intact but still be faulty, do not rely on visual inspection alone.

Step 2: Test the Fuse with a Multimeter

  1. Set your multimeter to continuity mode or the lowest resistance setting.

  2. Touch one probe to each of the two metal posts on the fuse.

Step 3: Interpret the Results

  • Continuity Mode: A beep or low resistance reading (close to 0 ohms) means the fuse is good.

  • Resistance Mode:

    • A low resistance reading (close to 0 ohms) means the fuse is good.

    • A high resistance or “OL” (open line) indicates the fuse is blown.

Replacement Tips

If the fuse is blown, replace it with a new fuse of identical resistance and specifications to avoid overloading the circuit.

Did this answer your question?