electrical bug

[fruuuu]

I have a 95 9000cs and i keep having electrical problems, my central locks dont work, if i try to lock my drivers door, it makes the alarm go off when i try to start the car, my instrument panel doesnt light up... it will flicker on for a couple minutes every now and than but it doesnt stay on, and my speedometer/odometer just stopped working, anyone have any ideas?

[sp53]

Check the large 2 inch plug on the firewall next to the MC

[chengny]

Malfunction of unassociated auxiliary sytems is generally a symptom of a low voltage condition.

I'd start with the basics - what is the overall system voltage? If the ECM senses a low voltage condition it will begin selectively cutting out power to non-essential circuits.

To check; start the engine and observe voltage as indicated on the dash. Be sure to cycle through the menu at least once by pressing the INFO button on the SCC panel.

Should be at least 13.0 volts. Normal is high 13's - low 14's.

Less than 13 volts? Is the battery good and are the primary connections clean and tight? Check the ground cable terminations as well.

Pull the caps on the top of the battery and check electrolyte level. Is it full - up to the bottom of the individual cell observation holes? If not, top off each cell with distilled water?

Or an easier way: if you have another (known good) battery of similar configuration, try installing that.

Sorry the vague response. I know it seems to be a rather ... generic suggestion to the root of your problem. But, in my experience at least, the affected systems are not related - other than by system voltage.

Stand by, someone else may offer better advice.