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3 Posts
Hello tech guys,
I ran into a technical diagnosing problem:
How does toyota integrate the water coolant temp sensor signal with the ac high press switch?
I am looking at the wiring schematics for a 92 celica and i had an over heating problem I talked to the celica forum a bit about.
But I am very confused as to how Toyotas send the signal from the coolant temp sensor to the ac high press switch and then to the fan relay.
What does the ac high press switch have to do with the fans function. I would think if anything, that signal wold be bounced to the relay for the ac cooling fan relay, not the engine radiator cooling relay.
Am I missing something?
I am a bit useful under the hood of most GMs and Fords, but my lack of exposure to Toyotas, makes me seem like a ignorant rookie when it comes to not so complex issues as engine cooling.
Anyway, as i told the Celica group, I replaced coolant sencor and relay and the fan fires up when hot and doesnt stop till I shut the car off. Now Im not sure if this is normal, but Im guessing it shouldnt overheat anymore.
Thanks again for listening and any info.
Take care guys, good job on the site
Tony
I ran into a technical diagnosing problem:
How does toyota integrate the water coolant temp sensor signal with the ac high press switch?
I am looking at the wiring schematics for a 92 celica and i had an over heating problem I talked to the celica forum a bit about.
But I am very confused as to how Toyotas send the signal from the coolant temp sensor to the ac high press switch and then to the fan relay.
What does the ac high press switch have to do with the fans function. I would think if anything, that signal wold be bounced to the relay for the ac cooling fan relay, not the engine radiator cooling relay.
Am I missing something?
I am a bit useful under the hood of most GMs and Fords, but my lack of exposure to Toyotas, makes me seem like a ignorant rookie when it comes to not so complex issues as engine cooling.
Anyway, as i told the Celica group, I replaced coolant sencor and relay and the fan fires up when hot and doesnt stop till I shut the car off. Now Im not sure if this is normal, but Im guessing it shouldnt overheat anymore.
Thanks again for listening and any info.
Take care guys, good job on the site
Tony