- Dec 17, 2011
- 94
Yesterday about 40 miles in to a 200 mile trip, I noticed the needle on the volt gauge was about 1 line to 1 1/2 lines to the left of the 14. Later it would be 1 line to the right of the 14. Did this the whole trip. Sometimes it would stay at 14 I've never noticed it doing this before. It did this throughout the whole trip.I checked the voltage with my tech 2 when I got home, it was showing 13,7 volts on ignition 1. Any thoughts? Reading the shop manual I found this: f the generator has field control circuit failure, the generator defaults to an output voltage of 13.8 volts. Could it not be the generator but the generator battery control module that is on the negative battery cable? This may not be related, sometimes, not always, but when dark, the security light on the dash is on very dim. Security system and keyless entry seems to be working properly.