well, I guess it could be a number of things... as mentioned in the above post, it might be a motor issue... it could also be a switch issue... or maybe a DPMS (Driver Position Memory System) issue.
hmmm... If it were me I might try testing the switch first... Ithink itis the easiest to get to... it you take the steering column cover off, you should have access to all the tilt/extend/retract motorconnectors... and on the lower cover, the switchthat controls them...
...disconnect the 7P connector and pull the steering column switch out. onthe back of the switch, you should see the 7 contacts in a row...
with the tab up, the contacts are numbered 1 thru 7 from left to right...
with a continuity tester, test for continuity as follows...
tilt switch up -- continuity between 3 and 5
tilt switch down -- continuity between 2 and 3
extend/retract switch retract -- continuity between 3 and 4
extend/retract switch extend -- continuity between 1 and 3
auto switch off -- no continuity between any contacts
auto switch on -- continuity between 6 and 7
if all that tests okay, then move on to the motors...
there are two connectors under the steering column cover for the motors, one 2P connector and one 3P.
the 2P connector is the tilt motor and the 3P is the extend/retract motor...
the center contact on the 3P connector is empty.
test each motor by applying 12V power (+ and -) to the leads in a connector to the motor... doesn't matter which is + and which is -... if the motor runs, then you are good... swap polarity (+ for - and - for +) to get the motor to run the other way...
if the switch and the motors are working, then you can test the position sensor... it's a 4P connector near the motor connectors.
on the male terminals with the tab up, the contacts are numbered 1 thru 4 from left to right...
with a meter, measure resistance as follows...
neutral -- resistance between 1 and 4 is 4-6 kOhms
retract -- resistance between 3 and 4 is 1 kOhms
extend -- resistance between 3 and 4 is 5 kOhms
tilt down -- resistance between 2 and 4 is 1 kOhms
tilt up -- resistance between 2 and 4 is 5 kOhms
if all that is good
then it might be the DPMS... which has a testing procedure, but I don't think I would get into it... I might either bang on it a few times out of frustration and/or just find a used one from a salvage center.
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