SureTrack Real Fix: Can I Get Some Assistance Here?
Real Fixes from Mitchell 1’s SureTrack® expert information resource are documented issues from actual shop repair orders and community discussions. Read on to see how SureTrack can help you correct issues that are not easily diagnosed using OEM information alone. SureTrack is available at no additional cost in our ProDemand product.
Today’s vehicles are loaded with sensors to help you drive and park. These are part of what is now known as ADAS (Advanced Driver-Assistance Systems). One of the most common is parking assistance which helps you to avoid hitting obstacles while parking. Follow this Real Fix to see how a problem with the parking assistance system on a BMW 530xi was diagnosed and repaired.
2007 BMW 530xi 3.0L
Code 9E39, Replaced Park Assist Sensor
The customer states the park assist light is on.
Connected a scan tool and found code 9E39 – Lines, Front Center Left, Ultrasonic Sensor. With the vehicle in reverse, monitored live scan tool data and observed the park assist sensor parameter was erratic. Inspected the park assist sensor wiring harness and connector, but detected no obvious faults. With the ignition on and the engine off, used a multi-meter to check for the presence of voltage and ground at the park assist sensor connector and found both were present. Removed the park assist sensor and a visual inspection revealed the sensor was damaged.
Replaced the park assist sensor, cleared codes, performed a road test and verified the vehicle operated properly.
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