For those who like electrical puzzles 2000 Celica

[Shelbyonice]

Ok I really need the brains of everyone I can find to solve this one.
2000 Toy Celica The Air condition light will not come on and it won't activate the A/C system.
And The fuel guage, coolant temp will not illumiate and tachometer will not function.

I can pull the dash cluster unplug it with the car running and plug it directly back in and WOW everything works ( A/C, Fuel Guage, Coolant Temp, and Tach )

Now I can turn the car off and on several times and all still works.
Turn the car off for a half hour, then restart and nothing functions.

I have checked all the pins and connectors to the cluster and everything is fine
Does anyone have any ideas, cluster circuit board???? Accessory control module???

I don't want to just throw parts at this thing since the computer and or the dash cluster board are so expensive..

Any ideas are welcome

[5sfeCelica]

Originally Posted by Shelbyonice

Ok I really need the brains of everyone I can find to solve this one.
2000 Toy Celica The Air condition light will not come on and it won't activate the A/C system.
And The fuel guage, coolant temp will not illumiate and tachometer will not function.

I can pull the dash cluster unplug it with the car running and plug it directly back in and WOW everything works ( A/C, Fuel Guage, Coolant Temp, and Tach )

Now I can turn the car off and on several times and all still works.
Turn the car off for a half hour, then restart and nothing functions.

I have checked all the pins and connectors to the cluster and everything is fine
Does anyone have any ideas, cluster circuit board???? Accessory control module???

I don't want to just throw parts at this thing since the computer and or the dash cluster board are so expensive..

Any ideas are welcome

Have you checked your ground connections>? that could be a start

[Shelbyonice]

Originally Posted by 5sfeCelica

Have you checked your ground connections>? that could be a start

Yes I just got a good wiring schematic the other day that showed all the locations and everything checked ok. Even used ohms meter for verification. Thanks for your responce

[Bitter]

has anyone messed with the interior lights in the dash at all? there is a small component that grounds a few things inside the cluster which has to do with a bunch of those parts. post this up on newcelica, someone will know

[syklops75]

did you ever find the problem? i am experiencing the same situation right now. would love to know where to look!