1992 bonneville sse with trouble code 26 coming up when I scan the computer that in my book is a quad driver module circuit I was wondering if I change the cars computer if that would solve the problem from what I heard the quad driver moudules are in the computer?
Thank You

which quad is failing? there are 4 quads. get back to me and let me know which one it is.
and yes , the quad driver modules are in ur computer .

hey riotact , i just got ur email. actually , i changed 2 computers and it didn't solve the problem! plus if u think u'll get charged to do a scan, YOU WONT! It'* totally free . get it done before u change ur computer cause if that driver is just failing, it will fail in ur new comp too, due to a problem within that driver . get it scanned and get back to me.
laterz
Al

Some of the earlier 90'* bonnevilles and some scantools had a little glitch. My Quad driver shows itself as bad on my scantool if I have my foot on the brake. This is during a realtime data scan, not just a code scan. Reset your computer, then drive for awhile, stop the car, and scan for codes with the foot well away from the brake pedal!

Likely the driver is detecting a fault on its line, which means that one of the three or four items it is connected to is not operating properly. I don't have a service manual here, so I can't look up the items.

U did it again will! you are right ,some scan tools set code 26 if ur foot is on the brake pedal or even the e-brake pedal. like will said. disconnect the battery for about 5 mins , then give it a shot ,'' after you've driven for a while''. unfortunally on a 92 it wont pinpoint which quad is failing, but most likely it'* nothing

good luck.

Al

As a follow up the four items controlled by this quad driver are:

1. Charcoal canister purge solenoid
2. Hot temperature lamp
3. Low speed fan relay
4. TCC apply solenoid

The brake is also connected to it, but shouldn't set code 26. Some scan tools will detect a fault if the brake is pressed. Do you have any symptoms related to those above?