» » »

Volkswagen Q&A

Ask Your Question

2002 Volkswagen Jetta TDI Question: My TDI deisel has a battery drain issue,fuse block power wire draws too many amp



volksnut, 1.9L 4 Cylinder Diesel Turbo, Salt Lake City, UT, May 22, 2013, 14:21

alternator charges battery, seems that the alternator wire too the battery get too hot. battery does not overcharge. I replaced alt. starter and battery ( they were old anyway ). I removed all fuses at fuse block and the power wire still draws amps from the battery. help. when I disconnect the power wire to the fuse block my engine cooling fans turn on but do not reach fan speed.

1 Answer
Flag This
  • Answer #1

    Integrity First Automotive (6 Answers) , West Jordan, UT - (801) 335-5945
    integrityfirstauto August 12, 2013, 18:16

    If I remember correctly there is a fan control module on that vehicle bolted to the bottom of the battery tray (under the tray). The module is approx 4 inches wide, 1 inch tall and 1 inch thick. Unplug this module and see if your battery drain goes away. These modules can get rust internally and draw power and/or they sometimes get damaged in accidents and cause these kinds of problems.

    Good luck!

    Flag This