Steering lock problem solved (for real)

daisuke149

not true. Everytime you start the car the ecu is programmed to trigger the lock and wait for a response that the lock is released before starting

It would have a mode / instruction incase the fuse blows and it wouldnt get the response.

When you start the car it doesnt check if the doors are locked or unlocked.

ChrisSlicks

Yes and no. It sends the unlock first, i.e. when the car is completely off and indicates LOCK on the starter button. Provided it can get position feedback on the lock position sensor (passive, doesn't require power to the lock directly) the car will start, if it can't get feedback then it will not start (e.g. harness unplugged).

My guess is that the people that are getting the delay are going directly from LOCK to START, where as the people that don't get the delay have the habit of putting the car in ACC mode first (which does the unlock step) and then starting. Just a guess, but something to try out.

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kenchan

you're missing the point. i was stating the example that unlike the engine component parameters, steering locks have nothing to do with the engine performance. there's nothing for the ecu to 'learn.' it's only a pass/fail system for the steering lock.

im not here to make an argument. i am just here monitoring everyone's progress before i decide do do anything about mine.

carry on.

VCuomo

This is not "learning", this is recovery from an error (timeout) condition.

Look, I suggest we agree to disagree on this issue. The only reason that I brought up the whole "ECU learning" thing is simply that I don't think there's any reason to recommend that anyone reset the ECU to try and get it to "learn" that the steering wheel lock is disabled.

The main thing is you and Baer383 did excellent work, and did us all a big favor, in discovering that removing the fuse will eliminate the steering wheel lock failure - it doesn't cost anything to implement, and can be easily reversed. The only side effect appears to be a once-in-a-while delay in starting the car. It's no big deal.

Peace.

Ubetit

100% correct. The ECU encounters conditions and reacts to those conditions. It's all preprogrammed though.

There's a ton of guessing that is masquerading as fact in this thread. It's the reason i've stayed out of this thread but to correct the misread on the wiring schematic early on. The schematic shows that removing the fuse will disable the steering lock. What we can't be sure of is what the ECU does with that info, not from the schematic alone anyway. Obviously whatever condition the ECU sees doesn't prevent you from starting your car and driving off. My guess (with circuit design and repair experience) is that this mod is fine.