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What is Direct and Indirect TPMS & Differences Explained

What Is a TPMS or Tyre Pressure Monitoring System?

How Does TPMS Work?

Types of Tyre Pressure Monitoring Systems

What Is a Direct TPMS?

How Does a Direct Tyre Pressure Monitoring System Work?

Advantages of Direct Tyre Pressure Monitoring System

Disadvantages of Direct Tyre Pressure Monitoring System

What Is an Indirect TPMS?

How Does Indirect Tyre Pressure Monitoring System?

Advantages of Indirect Tyre Pressure Monitoring System

Disadvantages of Indirect Tyre Pressure Monitoring System

Difference Between Direct and Indirect Tyre Pressure Monitoring Systems

Basis of Differences

Direct TPMS

Indirect TPMS

Mechanism

In direct TPMS, a direct TPMS sensor is attached to each wheel that measures the air pressure.

In indirect TPMS, the anti-lock brake system (ABS) speed sensors are used to calculate pressure.

Cost Effectiveness

Direct TPMS is expensive.

Indirect TPMS is cost-effective as compared to direct TPMS.

Air Pressure Readings

Replacement of tyres does not affect the air pressure readings.

Replacement of tyres does affect the air pressure readings; hence resetting is necessary every time.

Time Taken in Installation

More time is required for installation and servicing.

Less time is required for installation and servicing.

The Tyre Pressure Monitoring System ensures the driver understands the importance of awareness of driver safety and maintenance of tyre air pressure on roads. As it is challenging for the driver to understand a tyre's wear-out state, installing a TPMS will ensure vehicle safety and safeguard from any road casualties.

FAQs About Tyre Pressure Monitoring System