Tire Pressure Monitoring System (TPMS) Sensor Signal Fault
TPMS sensor has a communication issue.
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What it means (plain English)
The Tire Pressure Monitoring System (TPMS) isn't getting the correct signal from one of the tire sensors, likely due to a bad sensor, wiring issue, or low battery in the sensor.
What the computer is actually seeing
The TPMS control module fails to receive or recognizes an invalid signal from the tire pressure sensors, which can happen if the sensor is malfunctioning or communication is interrupted.
What a healthy reading looks like
TPMS sensor should report pressure values between 28-35 PSI, depending on the vehicle specifications.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Start with a visual inspection of the tire pressure sensors and the wiring harness for any visible damage or corrosion.
- 2Check the tire pressure in all tires to ensure they are within the expected range (28-35 PSI).
- 3Using a TPMS scan tool, attempt to read the pressure values from each sensor; if a specific sensor shows no data, proceed to replace that sensor.
- 4If all sensors show correct data, but the code persists, check the TPMS control module wiring and connectors for faults or continuity issues.
- 5If still unresolved, consider replacing the TPMS control module to address potential internal failures.
Common causes
- Faulty TPMS sensor
- Damaged wiring or connectors to the TPMS sensor
- Dead battery in the TPMS sensor
- Interference from aftermarket electronics
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
Yes, but it’s recommended to fix it soon as incorrect tire pressure can lead to safety issues.
Will this code come back after I clear it?
If the underlying problem isn't resolved, the code will likely return.
Why does this code show up after changing tires?
If the new tires have sensors that are not programmed to the vehicle, or if any wiring was damaged during the process, the TPMS may not communicate properly.
Working a real vehicle right now?
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