My Column does not move in or out via the memory.

All other memory items work fine,

if i use the button after about 5 times it moves either forward or back

I have tried the reset memory on the column NO GO

any ideas

 

Blue 7-pin connector at the bottom of the driver's seat.

 

That seems fine

continuity from one side of plug to the other

 

That connector supplies the power and column position feedback to the SCM (Seat Control Module). Usually, it becomes loose and causes what you've seen. May I suggest that when you manually attempt to move the column with the switch and it doesn't move, try messing with that connector. If the column suddenly moves, that's the problem. I'm trying to remember but think that you can rememorize the column position information by pushing the switch down several times till it reaches the fully retracted position, then holding the switch there for like 3 seconds. Then you can do the opposite the same way for the outward position.

 

This might give some insight on how it works, and how to recalibrate the soft stops.

Document ID# 794522
2002 Chevrolet Corvette


--------------------------------------------------------------------------------

Telescoping Steering Column Calibration
Telescoping Soft Stops
After replacement of the seat control module, it is necessary to program the telescoping soft stops. Each soft stop is a programmable end of travel that is set approximately 1.3 cm (0.5 inch) from the mechanical end of travel. The steering column has a soft stop set at each end of the telescoping in/out movement. The system uses soft stops to prevent wear on the system by ensuring that the steering column movement stops before it reaches its mechanical end of travel in any direction. The soft stops are initially programmed at the factory. The stop positions may be reprogrammed, which is necessary any time the seat control module is replaced, as described in the following procedure.

Telescoping Soft Stop Programming Procedure
Turn ignition to ON, leaving the engine off.
To set the telescoping in soft stop, press the telescoping COLUMN IN switch at least eight times or until the column moves.
Press the telescoping COLUMN IN switch and hold the switch until the column travels all the way in, and continue to hold the switch about a second after motion stops at the mechanical end of travel. The soft stop for the column in position is now set. The seat control module automatically goes back to the normal mode of operation.
Repeat steps 2 and 3, using the COLUMN OUT switch, to set the column out position soft stop.

--------------------------------------------------------------------------------
Document ID# 794522
2002 Chevrolet Corvette

 

done all the above but still wont remember and rarlry works off the switch

 

Pull the codes from the DIC please and let us know what you find there. Yes its possible the column motor and/or feedback circuit is having issues.

 

Found broken wires inside the wire insulation going to my seat module on my 99. Wiggle them around and check for wires that have come fray.

 

weird thing is no codes

 

will check it out

 

 

Too date, I've only heard of one column motor actually failing. The rest have been either re-setting the memory for the column or the blue 7-pin connector having issues. The SCM is what controls things and its hanging under your seat. No codes says that its reporting nothing out of the normal. Your column works a little but not all the way or all the time. Sure sounds like the feedback circuit. You may need to pull it apart and get to the wiring on the column itself.

 

OK here is what i have found so far.

When i unplug the telescopic sensor, the button moves the steering wheel in and out with no problems, once i connect it again, the button works sometimes and not others,

When i get the switch working I can read the resistance on a multimeter showing that the telescopic sensor seems to be working, so maybe I will check if there is dry joints in the seat control module

 

Then use Ballypinball's procedure to reset the column's memory.

 

Update

Still not working

All wiring checked and working, replaced the 3 relays in the seat control Module.

Still not working

Ordered a new SCM will see what the outcome is

 

Update

Replaced the Driver Seat Control Module and the fault is exactly the same

When i press the memory the seat moves and the mirrors radio and everything else, BUT the Telescopic Steering does NOT.

Might try a adjustable pot to see if i can trick the bcu into thinking it has a location.

Running out of ideas, the recalibrate of the telescopic doesnt work, when you move the telescopic manually it moves 1-2 inches and you have to keep pressing the button to get it to move.

However if i unplug the telescopic sensor it moves all the way in and out without pausing

 

Maybe the sensor is bad ? Since when you remove it everything works.

 

It sounds like the position feedback circuit isn't connecting to the SCM. I no longer have the manuals needed to post pictures or schematics but that feedback system may be part of the motor itself. I'm truly not sure. Maybe forum member DeeGee has a diagram or Bill Curlee.

 

 

OK finally fixed
Tried a new SCM same problem
In the end i removed the telescopic sensor and activated it manually, seemed to work forward and back but was not working properly, meaning i set a memory and then test it and it would move but not to the correct memory location.

I spotted the black wire was cut, not all the way through but based on the fact it is a resistance curcuit it could have caused a problem.

I redid the connections and retested it, after setting the calibibration it worked but when the key was removed the column moved out not in, an the button also worked reverse.

I swapped the motor wires around and everything works fine now.

As it is a converted car from left to RHD, when the mechanic changed the steering sensor recently it appears he put the wires on the motor backwards.

Now i need to work out how much to charge the idiot for my time in fixing the car, that he caused and couldnt fix, hairline crack on the SCM boards he reconds was the problem, hairline crack my ****.