Keith Kinard 0 #1 Posted March 27 Dead battery this spring. Installed new battery as soon as I connected terminals all the dash lights lit up they light up when the key is not turned on. It was fine when I parked it in the fall flights stay on solid. What am I looking at for a potential problem? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,499 #2 Posted March 27 What model number or year? Share this post Link to post Share on other sites
cleat 4,984 #3 Posted March 27 Sounds like a critter may have chewed a wire harness . Check the entire harness for obvious damage. Share this post Link to post Share on other sites
lynnmor 6,795 #4 Posted March 27 Did you connect the battery wrong? Even a brief reverse connection can cause damage. Share this post Link to post Share on other sites
Keith Kinard 0 #5 Posted March 27 3 hours ago, gwest_ca said: What model number or year? Its a late 80’s, before Toro took over. Share this post Link to post Share on other sites
Keith Kinard 0 #6 Posted March 27 1 hour ago, lynnmor said: Did you connect the battery wrong? Even a brief reverse connection can cause damage. No that’s not the issue. Couldn’t if I tried Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,499 #7 Posted March 27 Download this file. There is a diagram in it that shows dash wiring on it's own. 1 Share this post Link to post Share on other sites
Achto 26,570 #8 Posted March 27 2 hours ago, lynnmor said: Did you connect the battery wrong? Even a brief reverse connection can cause damage. I actually picked up a '94 520H for free because it would not run. Would crank over just fine but would not start. Found that the battery cables were hooked up backwards. Hooked them up the correct way and it fired right up. Been using it ever since. Share this post Link to post Share on other sites
lynnmor 6,795 #9 Posted March 28 19 hours ago, Keith Kinard said: No that’s not the issue. Couldn’t if I tried There are two different types of batteries, the only difference is the polarity of the posts. Share this post Link to post Share on other sites
cleat 4,984 #10 Posted March 28 Either the ignition switch failed on it's own while parked (not likely), or some critter chewed some insulation off wires causing them to touch and short against each other. Give the entire harness a good check including the engine harness as the problem could come from there as well. Share this post Link to post Share on other sites
