Quote:
Originally Posted by Mxfrank
If this was measured on a tester, it's the tester that supplies D+ current. No D+ means no charge, end of story. If the dash light is out, then either the bulb is blown or the wiring is bad, either way, no D+. I'm still wondering if the measurement was done correctly.
The EDS problem is either a bad OVP or bad crank sensor. To diagnose EDS, you need to read the blink codes. I use one of these gadgets:
Mercedes Diagnostic Code Reader Tool W124 Obd1 300e 320e 400e 190e and others
There won't be blink codes at all if it's a bad OVP.
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Crank sensors is a simple check as shown in this helpful video...
https://www.youtube.com/watch?v=7LTN1PlhDOY
Neat tester, I ordered one.