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Topic: clearing codes (solved) (Read 4665 times) previous topic - next topic

clearing codes (solved)

1990 ford bronco 351w full size EECIV system

how to clear codes after they have been pulled is my question.

I fixed a problem and followed the instructions by removing the jumper wire in order to interupt the test and clear the eec.

i checked on my codes today and they still remain.

Re: clearing codes

Reply #1 –
Unhooking the battery won't do it?
Temporarily Foxless? Ride the Bull...

Re: clearing codes

Reply #2 –
thats what is said not to do.  Ive heard of that before many times but i dont put stock in it.  Seen it many times when a check engine light is on,, pull the bat signal for a good bit of time.  Later on down the road like within the same day, check engine light comes back on.

Re: clearing codes

Reply #3 –
Quote
how to clear codes after they have been pulled
Key on, jumper in, beep-beep, count-count, end of test.
Key off, jumper out, wait 10 seconds.
Key on, jumper in, beep-bee... *yank* out comes the jumper.
Codes should be gone. Turn off key, wait 10 seconds.
To check, key on, jumper in, should only get code 11 "System okay".
Quote
I fixed a problem.......i checked on my codes today and they still remain.
Did you run the car after clearing the codes? If so, then the problem wasn't fixed, and the code was set again.
Death awaits you all with nasty, big, pointy teeth.

1988 5.0 Bird, mostly stock, partly not, now gone to T-Bird heaven.
1990 Volvo 740GL. 114 tire-shredding horsies, baby!

Re: clearing codes

Reply #5 –
Quote from: MasterBlaster

Key on, jumper in, beep-bee... *yank* out comes the jumper.

in that exact order,,,key on then jumper in then yank?


Quote from: MasterBlaster
Did you run the car after clearing the codes? If so, then the problem wasn't fixed, and the code was set again.

yes,, i figured that they wont go away till the codes are cleared.

no, i have not performed a koer test as of yet.

Re: clearing codes

Reply #6 –
Quote
in that exact order,,,key on then jumper in then yank?
Yep, that what my instruction manual for my reader says:
1- Turn off ignition
2 - Set code reader to HOLD (same as no jumper) and connect to car
3 - Turn on ignition, do NOT start car
4 - Set code reader to TEST (same as jumper in)
5 - The LED light will start blinking
6 - Set code reader to HOLD (jumper out) while LED is blinking
7 - "Continuous Memory" codes are erased
8 - Turn off ignition and remove code reader
Death awaits you all with nasty, big, pointy teeth.

1988 5.0 Bird, mostly stock, partly not, now gone to T-Bird heaven.
1990 Volvo 740GL. 114 tire-shredding horsies, baby!

Re: clearing codes

Reply #7 –
:screwy:
ooooohhhhh ,, ok,,
if thats the case,, then we're all gonna have to notify therangerstation.com web guru of a wording error. 

thanks man,, ill try it your way tomorrow morning.

"""""Clearing Codes
These codes are kept in memory for 40 warm up cycles.  To clear the codes for purposes of  testing or confirming repair, perform the code reading procedure.  When the fault codes begin to be displayed, de-activate the test by either disconnecting the jumper wire or releasing the test button on the hand scanner.  Stopping the test during code transmission will erase the continuous memory.  Do not disconnect the negative battery cable to clear the codes; the keep alive memory will be cleared and a new code (19) will be stored for loss of PCM power.""""""



i wonder if what is meant here is to remove the jumper during each two or three diget code to erase each code individually?

Re: clearing codes

Reply #8 –
Quote
a wording error.
Why? Looks fine to me...

...codes begin to be displayed, de-activate the test...disconnecting the jumper

...Key on, jumper in, beep-bee... *yank*

Of course, if you don't have a beeper, substitute blink-bli... *yank*

...Set code reader to HOLD (jumper out) while LED is blinking
(I added "(jumper out)" to the above line. Not in the book)

Quote
erase each code individually?
Nope, they all get wiped together.
Death awaits you all with nasty, big, pointy teeth.

1988 5.0 Bird, mostly stock, partly not, now gone to T-Bird heaven.
1990 Volvo 740GL. 114 tire-shredding horsies, baby!

Re: clearing codes

Reply #9 –
Quote from: MasterBlaster
Why? Looks fine to me...


actually, it says pulling the jumper during any code transmission will erase the memory.,,

your saying to pull the jumper out during code transmission,,leave the key on,, reinstall the jumper,, when codes start dumping again  pull the jumper.

what changes in your step vs the steps in the write up is the installation of the jumper with the key on. 

In therangerstation steps, you install the jumper and the test light, turn key forward, pull codes.  to erase the codes you re-run the test step by step and simply pull the jumper out.

what you say is that i follow the proceedure but remove the jumper then reinstall it with the key on, then pull the jumper out during any code.

thats an extra step.

Re: clearing codes

Reply #10 –
Quote
remove the jumper then reinstall it with the key on
Where? I must be blind.
Quote
thats an extra step.
Sorry, you lost me.

Could you quote the part with the extra step? Maybe I just can't see it.

Unless you mean my first reply, which was basically doing the procedure 3 times...

1st - Run the codes and write them down, unless you already did.
2nd - Run the codes and interrupt to clear them.
3rd - Run the codes to verify they were cleared.

Each time the codes are run, the key should be off for 10 seconds beforehand to let the computer reset, and the jumper only inserted to start the test sequence.

I never trust anything to be done just because I tell it to.
I always go back and make sure it was done.
Death awaits you all with nasty, big, pointy teeth.

1988 5.0 Bird, mostly stock, partly not, now gone to T-Bird heaven.
1990 Volvo 740GL. 114 tire-shredding horsies, baby!

Re: clearing codes

Reply #11 –
I feel like a pest,,why? :sorry:
if i follow the below instructions, copy/paste, my codes do not clear.

however, you mention this .......
[[[[[[[...codes begin to be displayed, de-activate the test...disconnecting the jumper

...Key on, jumper in, beep-bee... *yank*****}}}}}}}}


the extra step is where you reinstall the jumper with the key on.  that step is not mentioned below.
again, sorry to b a pita. :sorry:

-----------------------------------
3. Hook up light and jumper (or a tester if you have one). Turn key to ON (do not start engine).

4. Fast Codes are output (ignore fast light flashes).
  NOTE: Unhook self test input jumper (or tester if used) at any time during code output to erase memory.
 
5. Read hard faults.
 
6. Separator Pulse.
 
7. Read memory codes.
 
8. See code explanations and check components as necessary.
  Use FIRST CODE OUTPUT and retest after any repairs are made.


Clearing Codes
These codes are kept in memory for 40 warm up cycles.  To clear the codes for purposes of  testing or confirming repair, perform the code reading procedure.  When the fault codes begin to be displayed, de-activate the test by either disconnecting the jumper wire or releasing the test button on the hand scanner.  Stopping the test during code transmission will erase the continuous memory.  Do not disconnect the negative battery cable to clear the codes; the keep alive memory will be cleared and a new code (19) will be stored for loss of PCM power.

Re: clearing codes

Reply #12 –
It does't matter whether you put the jumper in before or after the key is on.
Put the jumper on first: The tests start when you turn the key on.
Turn key on first: The test starts when you put the jumper in.

If you are using the check engine light (or you have a meter in the dash like I do) you put the jumper in first.

If you are working under the hood you do the key first.

When you pull the jumper to clear the codes, leave it out and turn the key off to finish-up the operation.

When you turn the key off, wait until the EEC primary power relay
drops before you turn it on again. About five to ten seconds. You can hear it if you listen close. It's in the dash to the right of center.

The caution about not disconnecting the battery is because there are other things stored in the KAM (Keep alive memory) besides the error codes.
There are tables with operating parameters stored in them that the computer will have to "relearn". It may run rough until the learning process is complete.
Relearning the parameters may be a good idea after you get the bugs cleared up.

Of course we never disconnect the battery with the key on.
 

Re: clearing codes

Reply #13 –
im going to do this in a moment,, wifes been gone most all day.
this is easy,,i know im reading this correctly but if i simply pull the jumper while codes are dumping,, then wait ,,, then check again,,the codes still remain.

Re: clearing codes

Reply #14 –
ok softtouch and masterblaster,,
ive have no ability to remove the codes.  Trust me ,, i've tried every combination of when that stinking jumper goes in and comes out with no avail.

i even did some KOER tests to interupt it that way,,no go.

maybe i need to see if there is something special about the bronco.