Everything you need to know about ‘park distance control’ ADAS function

HELLA explains PDC operation, causes of failure and how to correctly instal replacement sensors in new video

Everything you need to know about ‘park distance control’ ADAS function

HELLA has released technical information and valuable tips for technicians on all aspects ‘park distance control’ (PDC).

The traditional PDC operates on the basis of ultrasound, which is emitted using several sensors and if an obstacle is detected, they alert the driver.

The more ultrasonic sensors installed and spread out across the width of the vehicle, the more accurate the measurement result will be.

PDC is a feature utilised by many manufacturers including Volkswagen, Seat, Skoda, BMW, Toyota, Ford, Mazda, Range Rover and Volvo, although the designation varies.

Parking distance control failure

Depending on the vehicle or on the system, LED displays, graphic representations on the screen or purely sound signalling devices can be installed.

Depending on the vehicle’s system PDC failure may be indicated with a warning lamp or an error entry in the control unit.

Causes of failure can include faulty power supply, external damage to bumpers or sensors, defective sensors, a defective signalling device or a defective control unit.

A HELLA spokesperson said: “Knowledge of advanced driver assistance systems (ADAS) is becoming a necessary requirement in the aftermarket as more vehicles with these systems are entering the workshop.

Related: ADAS need standard failure warning, UK insurance body says

“Parking related assistance is a common ADAS technology that helps drivers during parking manoeuvres and it is park distance control (PDC) that warns them of obstacles in the immediate vicinity of the vehicle, which means it is an important element within these systems.”

HELLA is an ADAS specialist that not only designs and manufactures many of the sensors and radars on which these systems rely, but through its subsidiary, Hella Gutmann Solutions (HGS), has been educating the industry in the importance of ADAS calibration and its repercussions for independent businesses for more than a decade.

To support technicians in quickly and efficiently identifying the cause and rectifying the problem, HELLA has released a video on how to check the vehicle and correctly install replacement sensors on its TechWorld website.

Select ‘more details’ below for further information and to watch the video.

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