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Maybe if you're lucky, you just fried the VR chip ... 200 1978

uid 27's pic
posted by  Art Benstein on  Tue Aug 17 01:14 CST 2010
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last visit: Fri Oct 17 20:10 CST 2014
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I think Ken is right. That 10-ohm resistor doesn't show up on any of the Volvo maps, but it is in series with the ground reference for the 10-volt regulator. Because 10 ohms is not enough to affect the output voltage in that configuration, I believe it may be there as a sort of fuse, or safe blowoff, against the case where the regulator IC shorts input to ground. In the car where this cluster belongs (81-85?) a shorted regulator would stop the fuel injected motor.

You'll probably need to replace both the regulator and the resistor.


--
Art Benstein near Baltimore

It's always darkest before dawn. So if you're going to steal your neighbor's newspaper, that's the time to do it.






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New Fuel/temperature gauges not working [200][1978]
posted by  jalopy  on Mon Aug 16 15:03 CST 2010 >


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