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Dash warning lights stay on: Why?

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#1

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06-30-2007, 07:35 PM

Ron in SC

Ron in SC is offline

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Question

Dash warning lights stay on: Why?

All warning lights on dash stay illuminated when car is started. Car is 1992 300E.

What is potential problem?

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#2

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06-30-2007, 08:03 PM

Arthur Dalton Arthur Dalton is offline

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Low voltage condition or possibly OVP..

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#3

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06-30-2007, 08:08 PM

Ron in SC

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That's interesting. Could bad OVP also cause fan for A/C to fail to operate? That's another problem with this car? Fuse in motor compartment is not blown.

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#4

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06-30-2007, 08:16 PM

Arthur Dalton Arthur Dalton is offline

Arthur Dalton is offline

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Join Date: Aug 1999

Location: Florida / N.H.

Posts: 8,804

Doubt it..
Check for voltage at the 3 wire connector on firewall, behind brake booster..Red/Blk/Yellow.
You should have 12v across R/B and low volts [3-8] across Y/B.. That will verify ACC and fuses..
Thst is power feed for blower/regulator..

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