There are a whole load of things that could cause your problem, but surely the dealer checked the obvious ones. All the components of the liftgate system can be checked electronically by the dealer and they can monitor the status of all the various switches as the liftgate operates. My guess is that it's something else causing the problem.
The door has the ability to sense resistance to liftgate travel and if it does that, the door will immediately reverse direction and close again. I think I would suspect that the door is binding somewhere which causes this reverse action to occur. Hall effect sensors in the motor and pinch sensors in the door jamb are used for detection but I think you can rule out the pinch sensors (they look like door seals but have electrical conductive rubber in them) because those are used to stop the door from closing if something blocks it. You have the opposite problem. The Hall effect sensor in the motor detects if the motor speed changes (such as if it slows down because the door is encountering resistance) and sends a signal to the door module to reverse direction. Another possibility is that the sensor located in the motor is faulty (maybe from getting banged around in the accident?) and is causing the problem all by itself. Just a couple of guesses. Michael -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Lenny McHugh Sent: Monday, January 18, 2010 2:46 PM To: handyman-blind Subject: [BlindHandyMan] another car guys question About two months ago my wife was in a minor accident. She has a 2003 grand caravan. She was rear ended. The tale gate was replaced. When she brought the car home the tail gate power lift did not work every time. About 50 percent of the time it would go up half way and automatically close. So back to the dealer. They toyed with it for a while then ordered all of the parts that work the power lift. Well after they were installed it still has the same problem. It is going back Tuesday night so that they can have it all day Wednesday. Does anyone have any suspicions to what could be causing this intermittent problem? --- Please visit my home page; it is motivational, inspirational and humorous with many resources for the blind. http://www.lennymchugh.com Lenny Please Copy and Paste into New Message to pass along. Use BCC line when addressing. Help stop identity theft. ------------------------------------ Send any questions regarding list management to: [email protected] To listen to the show archives go to link http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_p age&PAGE_id=33&MMN_position=47:29 Or ftp://ftp.acbradio.org/acbradio-archives/handyman/ The Pod Cast address for the Blind Handy Man Show is. http://www.acbradio.org/news/xml/podcast.php?pgm=saturday Visit The Blind Handy Man Files Page To Review Contributions From Various List Members At The Following address: http://www.jaws-users.com/JAWS/handyman/ Visit the archives page at the following address http://www.mail-archive.com/[email protected]/ If you would like to join the JAWS Users List, then visit the following address for more information: http://www.jaws-users.com/ For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: [email protected]! Groups Links
