M&S lights flashing and limp mode, is 13.4 volts at the battery when running enough?
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Update: Fixed Limp mode w/ Alternator Replacement: M&S lights flashing and limp mode,
2003 D2: Recently, I started getting the m&s indicator for limp mode. Shut down and restart clears it for a while but it always comes back. I checked my battery with an old toaster style tester and with my Power Probe 3. PP3 shows 12.5 volts after sitting all night and 13.4 while it is running. My toaster load test was still in the green OK range after 10 seconds.
I've read here that bad grounds, alternators and cables can sometimes cause limp mode to switch on.
PS I tested my other D2 (1999) and it shows 14.2 volts when running
I've read here that bad grounds, alternators and cables can sometimes cause limp mode to switch on.
PS I tested my other D2 (1999) and it shows 14.2 volts when running
Last edited by bcolins; 06-12-2016 at 11:16 AM.
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A well known, longtime contributor to this forum always said that voltage must be between 13.6 and 14.8 volts to avoid throwing a transmission fault code and limp mode, although I could not find that specification in the RAVE today.
He said the voltage should be read at idle, at the alternator, under full load (i.e. all lights and accessories on).
My UltraGauge typically shows ~13.8 volts.
He said the voltage should be read at idle, at the alternator, under full load (i.e. all lights and accessories on).
My UltraGauge typically shows ~13.8 volts.
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