Dear David,

Good p.m. and may this find you well. For your ease of reference, I set forth below an excerpt, from the post relating to re-setting an SRS system. This should be added to the FAQs:

"They checked fittings/wires, and got the code readout. They then reset the code. They test drove it 3 times on bumpy roads, turning it off then on each time so the computer would go through the SRS check each time) and it never came back on. I have driven it twice without it coming on.

Their tech said 9 out of 10 times some fluke makes it go on, and once it is reset it never comes on again. Said there is a chance that it has a weak component (maybe the backup power capacitor) that was affected by the keyless remote install (battery disconnected for over 5 hours, or they temporarily disconnected the harness, etc.). Could have just been a very hard jolt that set it off (but there was not other input required to set off the bag), or who knows what.

One important thing he said was that they always read the codes three times before resetting them. He said often they will not reset after just one, or even two readings."

Hope this helps to fix what ails your chariot.

Yours faithfully,

spook

Dear David,

Good p.m. and may this find you well. By chance, when you removed the passenger seat, did you thump the floor pan really, really hard?

If so, that could have disturbed the airbag sensor, which is located under the driver's seat.This location is not speculative: I've removed front seats in 1993 and 1994 940s, and the airbag senor definitely is under the driver's seat. There is no reason to think the 1995 will be any different.

It is to avoid these problems, that I urge anyone, who plans to remove the driver's seat, first to disconnect the negative battery cable clamp from the battery terminal, and to put the terminal in a plastic bag. This guards against an inadvertent airbag deployment. This is dangerous if you're right next to the air bag, and very expensive. A new airbag unit is about $1,000.

Since the SRS light is on, you should read the codes, as suggested in a previous post.

You should also scan through this month's posts, for one on the same subject. Some SRS faults are transient and you can get the system to re-set. Follow the procedure set forth in that post.

A new SRS Sensor is about $1,300; a used one is about $400.

Nonetheless, before you get out your checkbook, research this.

I'd bet you can get the system to re-set itself.

Before pulling seats, disconnect the negative battery cable.

Hope this helps.

Yours faithfully,

spook

If you disconnected an SRS sensor with the battery connected, you'll get an SRS fault. Check the 700/900 FAQ on codes, but here's how to clear it to see if it stays locked in.

To read faults, refer to the OBD diagnostic output boxes on the front of the driver's side strut tower. You will find two, labelled "A" and "B".

Remove the selector lead from the side of "A" and insert it into terminal 5 of output box "B".
Turn the ignition "on" to key position II.
Wait about ten seconds.
Press the button on box "B". Keep it pressed for about 1 second.

Read off the LED flashes. Codes have three digits: A-B-C. If code 1-1-1 is read, there are no stored fault codes. If a code other than 1-1-1 is obtained, write it down and press the button again to see if there are more.

To clear fault codes other than 1-1-2 (indicating a crash sensor fault, which must not be cleared but rather returned to the dealer):

Remove the selector lead from the side of "A" and insert it into terminal 5 of output box "B".
Turn the ignition "on" to key position II.
Press the button on box "B". Keep it pressed for at least 5 seconds.
Release the button. The LED lights.
Press the button again when the LED lights and keep it pressed for at least 5 seconds.
The codes are now cleared.
To check whether codes are cleared, repeat procedure A above. If codes remain, then the fault persists and must be repaired.

Good Luck,

Tom

I thought the crash sensor was located under the driver's seat, but maybe it was switched.