McAfee Obstacle Sensing System ASH300 - Manual (Page 5)

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No Function in Reverse Check power to receiver and transmitter
Reprogram Receiver
Check Fuse in Receiver
Check in-line fuse in Sensing Unit
Check 7-way harness
Check Ground Wire
Inconsistent Operation Refer to page 4 Reprogramming Wireless
Receiver.
Constant Tone in Reverse Always check for object behind vehicle
Make sure sensors are clean of debris
Care
To prevent power wire harness damage, remove Hitch Unit and unplug all power wires prior to driving through
automatic car washes.
Keep sensors clear of any solid mass or debris to maintain accurate performance.
Troubleshooting
(For additional information, please contact your installation center.)
Symptom Remedy