Connect with us

Legacy Content

TPMS And Radio Waves: What You Can’t See Can Hold Up A Relearn

TPMS and keyless entry can be difficult to understand because these systems rely on transmitting, receiving and decoding radio waves.

Advertisement

Advertisement
Click Here to Read More
Advertisement

TPMS and keyless entry can be difficult to understand because these systems rely on transmitting, receiving and decoding radio waves. You can see wires connecting modules and components, but seeing radio signals takes a little faith in science.

Radio waves are a type of electromagnetic radiation that have artificially organized patterns of waves so it transmits information. Still confused? Think of a TPMS sensor; it transmits a very low power signal that goes in all directions. The wave is absorbed and reflected off the vehicle and environment. The antenna on the vehicle, that could be on the windshield, in the wheel well or other locations, receives part of the wave.

TPMS sensor signals are low power and low frequency with the majority of sensors transmitting at 315MHz or 413MHz. Keyless entry fobs also operate at this frequency.

To continue reading, click here.

Advertisement
Click to comment

Loading Post...

Loading Post...

Loading Post...

Advertisement

POPULAR POSTS

Toyota V8 Timing Belt Service Tips

Pulling Codes: The Story of U1016

ABS Scan Tool: Diagnosing Equipment

Tool Tip: Code P0411 – Secondary Air Injection System Incorrect Air Flow Detected

Connect