Matt0000 1 #1 Posted August 16, 2023 When i turn switch on i don’t have any lights at all, my green wire going to the headlights doesn’t have power. Not sure if it’s a bad switch ? Share this post Link to post Share on other sites
ri702bill 8,738 #2 Posted August 16, 2023 What type of tractor? Do you have the manual?? Share this post Link to post Share on other sites
rmaynard 15,801 #3 Posted August 16, 2023 Most lighting circuits are fused. However, some are not and the green wire which you speak of comes directly from the engine, through a switch to the lights. So, please let us know the year and model of your tractor. 1 Share this post Link to post Share on other sites
8ntruck 7,256 #4 Posted August 16, 2023 A bad ground on the lights would also prevent them from working. Got to ask the obvious, too - are the bulbs good? I've never, ever been tripped up by anything like that. Nope, not me. Not ever. 1 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,176 #5 Posted August 16, 2023 Do the lights work with the engine running? 1 Share this post Link to post Share on other sites
Matt0000 1 #6 Posted August 16, 2023 5 hours ago, ri702bill said: What type of tractor? Do you have the manual?? 520h hydro Share this post Link to post Share on other sites
Matt0000 1 #7 Posted August 16, 2023 4 hours ago, rmaynard said: Most lighting circuits are fused. However, some are not and the green wire which you speak of comes directly from the engine, through a switch to the lights. So, please let us know the year and model of your tractor. I believe it’s a 91 or 92 520h Share this post Link to post Share on other sites
Matt0000 1 #8 Posted August 16, 2023 3 hours ago, 8ntruck said: A bad ground on the lights would also prevent them from working. Got to ask the obvious, too - are the bulbs good? I've never, ever been tripped up by anything like that. Nope, not me. Not ever. well i don’t get any power to the wires to the bulbs so. Share this post Link to post Share on other sites
JCM 9,916 #9 Posted August 17, 2023 41-200E03 should be a 1992. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,176 #10 Posted August 17, 2023 1 Share this post Link to post Share on other sites
rmaynard 15,801 #11 Posted August 17, 2023 (edited) Do the back lights work? If not, then I would guess its a fuse. If they do, then you need to trace the wiring from the light switch to the lights. Edited August 17, 2023 by rmaynard Share this post Link to post Share on other sites
Matt0000 1 #12 Posted August 17, 2023 1 hour ago, rmaynard said: Do the back lights work? If not, then I would guess its a fuse. If they do, then you need to trace the wiring from the light switch to the lights. none of lights work, no power to any of the lights and fuse is good it’s a 25 instead of 30 but still don’t work with 30 in it? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,176 #13 Posted August 17, 2023 Is the 15 amp light fuse getting power? 1 Share this post Link to post Share on other sites
Matt0000 1 #14 Posted August 17, 2023 7 minutes ago, gwest_ca said: Is the 15 amp light fuse getting power? yes Share this post Link to post Share on other sites
rmaynard 15,801 #15 Posted August 17, 2023 Check both sides of the light switch. If you have power at the fuse side, and power at the light side when on, then the problem has to be in the green wire. When you are testing for 12 volts, what are you using for ground? Share this post Link to post Share on other sites
Matt0000 1 #16 Posted August 17, 2023 59 minutes ago, rmaynard said: Check both sides of the light switch. If you have power at the fuse side, and power at the light side when on, then the problem has to be in the green wire. When you are testing for 12 volts, what are you using for ground? The battery ground Share this post Link to post Share on other sites
rmaynard 15,801 #17 Posted August 18, 2023 18 hours ago, gwest_ca said: Is the 15 amp light fuse getting power? 17 hours ago, Matt0000 said: yes Since your answer is that you do have 12 volts at the light fuse (A), then the only other place to check is the switch (B) If switch (B) has 12 volts at both sides, your green wire is the culprit. 1 Share this post Link to post Share on other sites
Wayne0 707 #18 Posted August 20, 2023 I had a (similar) problem on a 520H I bought. No lights worked. it turned out they were all were blown from a bad regulator putting out too much voltage! Fuse block and 9 pin was melting too! Share this post Link to post Share on other sites
Matt0000 1 #19 Posted August 20, 2023 2 hours ago, Wayne0 said: I had a (similar) problem on a 520H I bought. No lights worked. it turned out they were all were blown from a bad regulator putting out too much voltage! Fuse block and 9 pin was melting too! not sure if that’s my problem, i think it’s either the switch or green wire, but the regulator also don’t work or something since the battery don’t charge Share this post Link to post Share on other sites
Wayne0 707 #20 Posted August 23, 2023 On 8/20/2023 at 1:38 PM, Matt0000 said: not sure if that’s my problem, i think it’s either the switch or green wire, but the regulator also don’t work or something since the battery don’t charge Start at the regulator. Grounds are an issue. Make sure they are GOOD! Share this post Link to post Share on other sites
Lee1977 6,917 #21 Posted August 24, 2023 The tail lights don't go through the 9 pin connector so if they don't work and you have power past the 15 amp fuse it's the light switch. Share this post Link to post Share on other sites
