Re: Christmas tree lights?
This may be of some help. One of the many articles I have collected over the years.
Has proven itself more than once.
Alternator Fault / Flashing Dash Lights
Intermittent dash light indication
Steady simultaneous illumination of more than one dashboard trouble indication lights, i.e. Battery Charging, Steering, and Stop Lamp, indicates one of several possible alternator faults which can be detected by the alternator’s integral electronic diagnostic module.
It would appear that as a safety measure, in the event of an alternator fault those indicator lights which are not illuminated for test purposes at startup, are operated simultaneously.
Flashing dash lights
The flashing of several dashboard indication lights can indicate a rather obscure alternator fault.
The indicator light test circuit which operates at startup, incorporates blocking diodes to eliminate a sneak circuit which would otherwise exist. A fault within the alternator rectifier network, often involving only a single diode, can result in alternating current being induced on line. As a result pulses of reverse voltage, pass the blocking diodes in the circuit which energizes the indicator lights.
Those testing alternators, including professional technicians, can often fail to detect this problem, due to there being only a very small discrepancy in the DC output.
It has been shown that testing battery voltage with a multimeter switched to the alternating current range, will often disclose the presence of the unwanted alternating current, whereas a normal direct current output voltage check will not. An oscilloscope will certainly disclose the problem.
Hope this may be of some use.
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Subaru Ambassador
1996 Polo Green LSi #216 ..138,100 miles. ..SOLD
JFICX8659TH100216.....Date of Manufacture: November 16, 1995.....
Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan
In-Service Date: January 2, 1997
"The Pristine Green Polo Machine”
First Polo Green on the Network
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R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016
2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback
2007 Mazda Miata MX-5 PRHT...102,000 miles.
Plenty of parts, service and windshields.
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