Indirect tire pressure monitoring infers low pressure by analyzing signals from which component?

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Multiple Choice

Indirect tire pressure monitoring infers low pressure by analyzing signals from which component?

Indirect tire pressure monitoring uses the ABS wheel speed sensors to infer low pressure. When a tire loses air, its effective rolling diameter becomes smaller, causing it to rotate slightly faster than the other tires. The ABS system already monitors each wheel’s speed, so it can detect this discrepancy and flag a low-pressure condition. The other sensors listed—engine temperature, oil pressure, and the A/C system—monitor unrelated conditions and don’t provide data about tire pressure, so they can’t support an indirect TPMS. That’s why the ABS is the component used in indirect TPMS.

Indirect tire pressure monitoring uses the ABS wheel speed sensors to infer low pressure. When a tire loses air, its effective rolling diameter becomes smaller, causing it to rotate slightly faster than the other tires. The ABS system already monitors each wheel’s speed, so it can detect this discrepancy and flag a low-pressure condition. The other sensors listed—engine temperature, oil pressure, and the A/C system—monitor unrelated conditions and don’t provide data about tire pressure, so they can’t support an indirect TPMS. That’s why the ABS is the component used in indirect TPMS.

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