sharkmobil wrote:In response to the second last post - would an adjustment of the DC-DC voltage converter be a less intrusive and expensive task to bring brightness of the high-beams up (say to 13.8 volts)?
An easy way to test that would be to spoof the battery temperature sensor, which is integrated into the battery current probe out on the 12 volt battery:
According to the manual, Pin #43 of the VCM is sensor ground, connected to Pin #3 of the battery sensor, and Pin #50 of the VCM is an NTC thermistor output, connected to Pin #2 of the battery sensor. If you were to cut the thermistor wire and insert some extra resistance, the VCM will think the temperature has dropped and turn up the charging voltage. I'm not sure at what point the VCM will throw a code for an open thermistor, but according to the manual the acceptable voltage range is 0 to 4.8 volts DC.