| Author |
Message |
Fred W
Guest
|
 Posted:
Sun Nov 14, 2004 5:40 pm Post subject:
Re: e34: service indicator lights |
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mojohotmail wrote:
| Quote: | done that and done it for even longer but still nada. like i said, i would
have thought it was a battery issue had the clock icon not been cancelled
(not sure what the clock icon is, but it showed up and then went away after
a go with the wire jumper thing).
|
The clock icon is the "bi-annual oil service" indicator. That's the one
to tell you to flush the coolant and brake lines (in addition to normal
oil change stuff).
If you can't reset the led bars, you may be right about the SI batteries
being bad.
-Fred W
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Fred W
Guest
|
| Posted:
Sun Nov 14, 2004 5:40 pm Post subject:
Re: service indicator lights |
|
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Jeff Strickland wrote:
| Quote: | My technique was to to turn the ingnition ON, ground Pin 7 (using a jumper
with a resistor in line) for a few seconds, then go and look at the display.
It was cleared. Since I did the procedure on my own, I don't know when the
display cleared, but it said SERVICE INTERVAL (or whatever) when I started,
and showed 5 green bars when done.
I am pretty sure I managed to ground Pin 7 before the display went out as
the timer for the self test period expired, and I am not sure but I think
this part of the process is a requirement, that is Pin 7 has to be grounded
within the timer period. If the timer times out, the reset will not occur.
Is this true?
|
Yes and no.
The SI lights (at least the green/yellow/red led bar type) stay on
forever if you never start the car (key in position 2)
-Fred W |
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Jeff Strickland
Guest
|
| Posted:
Mon Nov 15, 2004 5:40 am Post subject:
Re: service indicator lights |
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|
"Fred W" <Fred.Wills@SPAMmyrealbox.com> wrote in message
news:utqdnVar-Iv5xwrcRVn-rQ@adelphia.com...
| Quote: | Jeff Strickland wrote:
My technique was to to turn the ingnition ON, ground Pin 7 (using a
jumper
with a resistor in line) for a few seconds, then go and look at the
display.
It was cleared. Since I did the procedure on my own, I don't know when
the
display cleared, but it said SERVICE INTERVAL (or whatever) when I
started,
and showed 5 green bars when done.
I am pretty sure I managed to ground Pin 7 before the display went out as
the timer for the self test period expired, and I am not sure but I think
this part of the process is a requirement, that is Pin 7 has to be
grounded
within the timer period. If the timer times out, the reset will not
occur.
Is this true?
Yes and no.
The SI lights (at least the green/yellow/red led bar type) stay on forever
if you never start the car (key in position 2)
-Fred W
|
Not in my car they don't. They come on during the self test when the
ignition is first turned on, then they go out. The SERVICE INTERVAL Message
also goes out.
In my car, this indicator is immediately under the odometer, and it
definitely goes out.
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Fred W
Guest
|
| Posted:
Mon Nov 15, 2004 5:40 pm Post subject:
Re: service indicator lights |
|
|
Jeff Strickland wrote:
| Quote: | "Fred W" <Fred.Wills@SPAMmyrealbox.com> wrote in message
news:utqdnVar-Iv5xwrcRVn-rQ@adelphia.com...
Jeff Strickland wrote:
My technique was to to turn the ingnition ON, ground Pin 7 (using a
jumper
with a resistor in line) for a few seconds, then go and look at the
display.
It was cleared. Since I did the procedure on my own, I don't know when
the
display cleared, but it said SERVICE INTERVAL (or whatever) when I
started,
and showed 5 green bars when done.
I am pretty sure I managed to ground Pin 7 before the display went out as
the timer for the self test period expired, and I am not sure but I think
this part of the process is a requirement, that is Pin 7 has to be
grounded
within the timer period. If the timer times out, the reset will not
occur.
Is this true?
Yes and no.
The SI lights (at least the green/yellow/red led bar type) stay on forever
if you never start the car (key in position 2)
-Fred W
Not in my car they don't. They come on during the self test when the
ignition is first turned on, then they go out. The SERVICE INTERVAL Message
also goes out.
In my car, this indicator is immediately under the odometer, and it
definitely goes out.
|
Huh? Are you sure?
When I posted, I was not 100% sure, so I actually went out and checked
on my '94 E34, since that is what the OP was about. I had not checked
on either of my others ('95 E36 and '97 E36/7), so I just did. On all
three cars the service indicator lights (led bars) light up when you
turn the key to position 2 and stay lit forever.
I know that when you actually start the car they do time out and turn
off after about 8-10 seconds. But if all you do is turn the key to
position 2 they stay on.
-Fred W |
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Dave Plowman (News)
Guest
|
| Posted:
Mon Nov 15, 2004 11:33 pm Post subject:
Re: service indicator lights |
|
|
In article <10pi2v1i418lib7@corp.supernews.com>,
Jeff Strickland <spamcatcher@yahoo.net> wrote:
| Quote: | So, I switched the ignition ON, then used my test lead with an inline
resistor to take Pin 7 to ground, and the 5 green bars illuminated and
the SERVICE INTERVAL message went out. My inline resistor was very
cheesy, the spec I read called for 390 ohms, but I could only find a
light bulb with 420 ohms, so I gave it a whirl. Perhaps the spec called
for 420 ohms, and my lamp was 390 ... Either way, the circuit reset. I
am confident the circuit has a pull up resistor on the pin, so the
incorrect value of my cheesy set up isn't a significant issue.
|
The resistor is only a current limiting one in case of a wrong connection.
Its value isn't critical. I'm not even sure it's needed.
--
*Generally speaking, you aren't learning much if your lips are moving.*
Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound. |
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Jeff Strickland
Guest
|
| Posted:
Tue Nov 16, 2004 1:02 am Post subject:
Re: service indicator lights |
|
|
"Fred W" <Fred.Wills@SPAMmyrealbox.com> wrote in message
news:LeednSHQPuCKWgXcRVn-uA@adelphia.com...
| Quote: | Jeff Strickland wrote:
"Fred W" <Fred.Wills@SPAMmyrealbox.com> wrote in message
news:utqdnVar-Iv5xwrcRVn-rQ@adelphia.com...
Jeff Strickland wrote:
My technique was to to turn the ingnition ON, ground Pin 7 (using a
jumper
with a resistor in line) for a few seconds, then go and look at the
display.
It was cleared. Since I did the procedure on my own, I don't know when
the
display cleared, but it said SERVICE INTERVAL (or whatever) when I
started,
and showed 5 green bars when done.
I am pretty sure I managed to ground Pin 7 before the display went out
as
the timer for the self test period expired, and I am not sure but I
think
this part of the process is a requirement, that is Pin 7 has to be
grounded
within the timer period. If the timer times out, the reset will not
occur.
Is this true?
Yes and no.
The SI lights (at least the green/yellow/red led bar type) stay on
forever
if you never start the car (key in position 2)
-Fred W
Not in my car they don't. They come on during the self test when the
ignition is first turned on, then they go out. The SERVICE INTERVAL
Message
also goes out.
In my car, this indicator is immediately under the odometer, and it
definitely goes out.
Huh? Are you sure?
When I posted, I was not 100% sure, so I actually went out and checked
on my '94 E34, since that is what the OP was about. I had not checked
on either of my others ('95 E36 and '97 E36/7), so I just did. On all
three cars the service indicator lights (led bars) light up when you
turn the key to position 2 and stay lit forever.
I know that when you actually start the car they do time out and turn
off after about 8-10 seconds. But if all you do is turn the key to
position 2 they stay on.
-Fred W
|
Sorry, you are correct. The lights do not go out until after the car starts.
So, I switched the ignition ON, then used my test lead with an inline
resistor to take Pin 7 to ground, and the 5 green bars illuminated and the
SERVICE INTERVAL message went out. My inline resistor was very cheesy, the
spec I read called for 390 ohms, but I could only find a light bulb with 420
ohms, so I gave it a whirl. Perhaps the spec called for 420 ohms, and my
lamp was 390 ... Either way, the circuit reset. I am confident the circuit
has a pull up resistor on the pin, so the incorrect value of my cheesy set
up isn't a significant issue. |
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PV
Guest
|
| Posted:
Tue Nov 16, 2004 2:26 am Post subject:
Re: e34: service indicator lights |
|
|
"Fred W" <Fred.Wills@SPAMmyrealbox.com> wrote in message
news:JI-dnWwQp-OCxgrcRVn-sA@adelphia.com...
| Quote: | If you can't reset the led bars, you may be right about the SI batteries
being bad.
|
E32 and E34 clusters have never used the batteries!
E30 was the last one. Nowadays non-volatile memory is used instead.
Priit |
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Al
Guest
|
| Posted:
Wed Nov 17, 2004 1:34 am Post subject:
Re: service indicator lights |
|
|
Sorry, missed the beginning of this thread, but ...
| Quote: | My inline resistor was very
cheesy, the spec I read called for 390 ohms, but I could only find a
light bulb with 420 ohms, so I gave it a whirl. Perhaps the spec
called for 420 ohms, and my lamp was 390 ... Either way, the circuit
reset. I am confident the circuit has a pull up resistor on the pin,
so the incorrect value of my cheesy set up isn't a significant issue.
|
I've never even bothered with a resistor, I just use a piece of wire. I
guess the resistance is either something to discourage non-dealers by way
of bullshit, or a safety measure in case some numbnuts gets it wrong and
shorts the battery out ;-)
Al. |
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Jeff Strickland
Guest
|
| Posted:
Wed Nov 17, 2004 3:28 am Post subject:
Re: service indicator lights |
|
|
In any kind of I/O device, it is always best to use a loaded ground just in
case the circuit under test is not protected already.
"Al" <alnews67@hotmail.com> wrote in message
news:Xns95A3D1575D50Aalnews67hotmailcom@130.133.1.4...
| Quote: | Sorry, missed the beginning of this thread, but ...
My inline resistor was very
cheesy, the spec I read called for 390 ohms, but I could only find a
light bulb with 420 ohms, so I gave it a whirl. Perhaps the spec
called for 420 ohms, and my lamp was 390 ... Either way, the circuit
reset. I am confident the circuit has a pull up resistor on the pin,
so the incorrect value of my cheesy set up isn't a significant issue.
I've never even bothered with a resistor, I just use a piece of wire. I
guess the resistance is either something to discourage non-dealers by way
of bullshit, or a safety measure in case some numbnuts gets it wrong and
shorts the battery out ;-)
Al. |
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