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crash sensor installed but SRS light remains on!?[850/1995] posted by mark holter on
Monday, 30 March 1998, at 3:04 p.m.
Well, I've installed my new (used) crash sensor but the light remains on. When I asked the brickboard for guidance on installation, the reposnses were mixed about
whether it's necessary to reset the light. So,
1) did I install a bad sensor?
2) if I need to reset the light, is it a procedure I can do without special tools?
3) depending on the answer to the last question, should i give up and bring it to my friends at swedish engineering (an option which will leave me eating popcorn for lunch for the next 2 month!)
All suggestions apprciated!
Re: crash sensor installed but SRS light remains on!?[850/1995] posted by Rick Ewald on
Saturday, 4 April 1998, at 11:21 a.m.
Mark,
did you get a shop manual like Topi and I sugested? If, so scan for codes like the procedure says. If you get a code 1 you got a bad sensor. Any others can be canceled.
The answers to your questions are
1. Maybe
2. It requires a jumper wire
3.Maybe you should as the consequences of being wrong are failry serious.
Reseting SRS light[850/1995] posted by Jeffrey Davis on
Sunday, 5 April 1998, at 8:20 p.m.
I had the SRS light come on on my 1990 244 about 18 months ago. I got this
procedure from a poster on Swedishbricks. It worked. Apparently the light was
set by a transient fault which did not require replacement of my crash sensor.
A common problem is corrosion of the contacts on the yellow or orange power connector for the crash sensor under the carpet on the transmission tunnel.
If the procedure to reset the fault codes doesn't work, make sure the contacts are clean and then try to clear the codes again. If the SRS light comes back on, the
problem is probably another component or even low battery voltage. Faults must be cleared for the light to go out.
Use an 18 - 22 gauge solid wire with 1/4 to 1/2 inch of insulation stripped from the ends.
1. Remove the small cover that says SRS on it next to the cigarette lighter
and remove the lighter knob. Insert the end of the jumper you
made into the cross opening so it is gripped by the clip inside. Arrange the
wire so you can touch the other end of it to the grounded metal ring of the
cigarette lighter.
2. Turn the ignition on so the dash warning lights are on and wait 15
seconds.
3. Ground the test terminal for 2 full seconds. The SRS light will flash
immediately when the connection is first broken. This is not a fault code.
The light will then flash one to ten times for the code. The light will then
come back on.
4. Without turning the key off, clear the fault codes.
5. Ground the test terminal 3 times for at least 0.25 seconds each time all
within a period of 1.5 to 5 seconds. It will probably take several tries to get the rhythmn.
6. The lamp will go out for 4 seconds, relight for 3 seconds, and then go
out. If the light does not stay out, then there is still a fault present and
you will need to go further in to it.
--Jeff