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Old 06-21-2008, 05:58 PM
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91 420sel A/c ?????

I am having a problem with the blower motor for heat & A/C not turning on. I have checked voltage to the motor and found that on high im getting 7.1V, low 1.2V & auto 4.6V. Would this be a climate control unit problem or should I look further? From as far as I can tell the unit is getting 12.6V into it.

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Old 06-22-2008, 10:04 PM
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The motor regulator is probably the culprit. It is inside the fan cage and is expensive to replace.

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