If the parking brake warning lamp does not illuminate when the parking brake is engaged, what is the outcome?

The correct answer is that the vehicle fails inspection if the parking brake warning lamp does not illuminate when the parking brake is engaged. This is an important safety feature that indicates whether the parking brake is functioning properly. If the warning lamp does not illuminate, it suggests a potential malfunction in the warning system, which could lead to situations where the driver is unaware that the parking brake is engaged.

For a vehicle to pass inspection, all warning lights must function properly to ensure the driver receives accurate feedback about the vehicle's operational state. An inoperative warning lamp could mislead a driver into thinking the parking brake is disengaged when it is not, potentially leading to accidents or unintended vehicle movement. Therefore, if this warning lamp fails to light up when the parking brake is applied, it is a significant safety issue, resulting in a failure of the inspection.