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Old 04-11-2019, 06:56 AM   #10
cs123
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Location: Morayfield
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Default Re: Transistorised Radiator Fan

Quote:
Originally Posted by Citroënbender View Post
I’ve got a crack of the factory diagnostic software, when I run either fan speed actuation (low or high) via the PCM it tells me the operation cannot be completed.

I presume it sends out the relevant command but is not getting the return signal expected. This is where I’m stuck without a scope.

Have been wondering how hard it might be to strip away the potting and see what’s under there. Don’t think it’s TO-3s as there’s nothing on the heatsink side that would reflect their riveting.

Edit to add, physically the motor is 100%. So I don’t feel it’s cooked its guts pushing a stiff motor.
Have a look on eBay. You’d be surprise how cheap scopes are. And you get to buy another tool

That coating will be problematic
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