Question
Why do some TPMS warnings take minutes to appear after pressure loss?
Answer
ECUs wait for 2-3 consecutive low-pressure packets to avoid false alerts.
Explain
This prevents warnings from temporary pressure dips (e.g., hitting a pothole). CHEPQ tools show “pending low-pressure” status to indicate the ECU is monitoring the issue.
Recommended Diagnostic Solutions
To apply the diagnostic concepts discussed above in real-world scenarios, explore our full range of professional automotive diagnostic tools. These solutions are designed to support battery testing, system diagnostics, and data analysis for modern vehicles and workshop environments.
Related Questions
01
Are aftermarket TPMS sensors compatible with all vehicles?
01
Are aftermarket TPMS sensors compatible with all vehicles?
01
Are aftermarket TPMS sensors compatible with all vehicles?
01
Are aftermarket TPMS sensors compatible with all vehicles?