Question about 2003 Lincoln Town Car
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Posted on Jan 02, 2017
SOURCE: Backup sensors not working
using a mechanics stethoscope..you can listen to the sensors...listen for the weakest sensor and replace it...the sensors make a faint ticking noise when listened to..the faulty sensor will be noticeably different sounding than others...of course the key need to be in on position and in revers (be careful not to run you self over!)
Posted on Jun 02, 2009
Ford and GM often permanently "marry" the electronic and hydraulic portions of the module making rebuild more difficult as the 2 halves require a different procedures and skillsets to repair (1 is a computer board with chips and circuits, 1 is a hydraulic pump and mechanical valve assembly with some solenoids). You can try BBA-REMAN.COM, they may be able to rebuild it for you, but the majority of rebuilders out there prefer to stick with electronic only rebuilds (Typically european cars all use bosch style seperateable units available as exchange at many rebuilder shops). You may end up with faster luck trying to locate a used unit at a local junkyard that offers say a 30 day guarantee.
Have you verified that the wheel signals are in fact present and are reaching the module? Wheel speed is calculated seperately for each wheel, and processed seperately. It is rare (though not unheard of) for a module to fail in a manner that disables all sensors at once. Typically a module that has lost ability to process a signal or is grounding a signal internally will affect only 1 or 2, and the others will continue to function normally. Also solder cracks on the board are not uncommon, though again that would be very rare to affect all 4 at once.
Posted on Oct 04, 2009
SOURCE: backup sensor problems
easiest way withoout a scanner is
verify that all wire connectors to back of sensors are not noticable damage, if so repair
if no damage, buy one sensor and trial each one with known good one til light is functioning properly.
very common for sensors to fail, so if want to fix you will need to buy one and all are the same so you can inner change
otherwise you will need scanned to determine which sensor is faulty
hope this helps
Posted on Jul 27, 2010
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