Hyundai’s Park Assist Inoperative After Collision Repair
Vehicle: 2013 Hyundai Santa Fe, AWD, 2.0L Turbo,
Problem: The park assist system was inoperative.
There was also no audio warning when the vehicle was in close
proximity to objects in front of it.
Details: The vehicle had been in a front-end
collision and was in the body shop for repairs. After the
repairs were made and the vehicle returned to the customer, the
vehicle was returned to the body shop because the park assist
system was not working properly.
The Tech-Assist consultant advised the body shop tech to
connect a scan tool and check for diagnostic trouble codes in
the body control module (BCM). There were none so next they
looked at live perimeter identification data (PID). In the BCM,
the park assist sensor PID data showed a “Warning” message,
which never changed whether something was in front of the
vehicle or not.
The body shop tech removed the front bumper to gain access to
the park assist sensor and found the green LIN BUS wire and the
black ground wire were damaged and shorting together. The
shorted wires were interrupting communication to the BCM.
Confirmed Repair: The body shop tech repaired
the wires and retested the park assist system. It was fully