'99 FLHTCUI - Transient Voltage Spike (16V) while turning on Passing Lamps yesterday. Voltage came back to normal (~13-14V @ 3K rpm @ 70 mph in 5th gear) after shutting off passing lamps. Later turned Passing Lamps back on and voltage dropped to ~12V, and then returned to normal after turning lamps off.
Also, fuse blows when hard expressway exit ramp braking with passing lamps on, with voltage drop, taking out all the lamps. This doesn't happen when lamps are off as voltage remains constant.
Have traced wires, no apparent cracks or breaks. Passing lamps are well grounded. Have a multimeter and can trace but do not know where to start.
Any suggestions what the problem may be?
Thanks, RHP
Also, fuse blows when hard expressway exit ramp braking with passing lamps on, with voltage drop, taking out all the lamps. This doesn't happen when lamps are off as voltage remains constant.
Have traced wires, no apparent cracks or breaks. Passing lamps are well grounded. Have a multimeter and can trace but do not know where to start.
Any suggestions what the problem may be?
Thanks, RHP