> wrote in message
oups.com...
> hello-
> i have a 99 olds alero 3.4, 80k miles.
> engine runs well for the most part, although subpar mpg.
>
> the problem is that the instrument panel, power windows and ac blower
> are not operating. the gauges (tachometer, fuel, temp, speed) are
> stuck on zero, and the panel lights dont work. the hvac blower will
> not turn on, the windows wont go up or down. after ten minutes of
> driving the blower (if the knob is turned up) and instrument panel
> will suddenly turn on for a minute or so, then die. this cycle will
> repeat.
>
> these symptoms first started out once a week, but now have escalated
> to all the time. finally, dtc codes p1665 and p1676 set (with engine
> check light coming on).
>
> the stereo, courtesy lights, door locks, head lights, engine, work
> fine.
>
> i suspect the problem is a bad ground, loose/poor connection, and the
> troublecodes dealing with the EVAP system are just symptoms of the
> universal problem.
>
> any advice?
>
>
>
> tags: gauges, panel, cluster, blower, fan, dtc, codes, "service
> engine", "check engine light", bad, poor, ground, connection, windows,
> lights, dark, die, died, off, fail, stop, off,
>
Get a wiring Diagram. Find where the problem circuits and good circuits are
different. trace down each wire and find the one that is loose that would
shut off all the circuits that don't work.