A list of Gremlins currently experiencing:
When I purchased the vehicle:
*seat memory came with no function
*power mirrors came with no function
*have to manually open the trunk came with no automatic function
Since purchase, had an after market alarm system installed.. however had the
system disconnected to see if that might have been the mystery behind the new problems. No such luck. Starter problem now. Either the solenoid or the starter, checking this Saturday. Already checked, the starter has power running to it. However with a little patience, does start still. Battery cables fine, and cleaned, as well as coated. All fuses are fine, with the exceptions of no power to these two sections when tested: ST HTR (my guess is seat heater) as well as S T <~(no clue what that means). We have in our possession a 1992 LEXUS SC300 OEM FACTORY WIRING DIAGRAM MANUAL,
with a little outside help, will start diagnosing this weekend.
Here's what went wrong a couple of months after purchase:
power locks inoperable:have to manually lock or use the key
heater memory no more: always resets to off position when starting the vehicle.
odometer memory resets
power tilt wheel no function: worked perfectly, now not at all.
dome light no longer functions
rear view mirror on dim no longer functions
vanity mirror lights no longer functions
cigarette lighter no longer functions/light works fine
passenger seat will not go forward automatically
however the power seats still slide on tracks no memory
vehicle no longer senses when doors are open or ajar
Question Is their a common ecu involved here? perhaps something in the wiring?
Additional problem:
Happened this past week.
All connections tested okay... except at one point in time their
was no power to the St fuse area... starter... as well as no power
to the st htr... seat heaters.
Dash illumination tends to stay on after vehicle is shut down. Turn blinker "left"
with quiet almost grinding noise under left dash shuts it down, since my doors have
no working sensors. Aside from that being a bit on the odd side... here's an even more
confusing thing.. turns itself back on intermittently while no one is in its proximity.
I've disconnected the battery cable so it's possession will not scare the neighbors.
Have an inkling it was a most recently cleaned ground.. checked it.. didn't seem to
be the problem.
Disconnected the Auto start/Alarm system..not the problem either.
So, now sits in the driveway an interesting obstacle... Interior front
completely removed until problems fixed.
Any help? On anything?