ZX500 0 #1 Posted June 9, 2013 Hello everyone, I'm new here and have a 265H that the battery light has come on. It has been this way for a little while now and hasn't had any other problems. Lights are bright battery doesn't go dead all is well. It is just irritating. If anyone has had a similar problem or a fix please point me in the right direction. Thanks Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,393 #2 Posted June 9, 2013 What is the model number and serial number? With those we can look at a wiring diagram. Garry Share this post Link to post Share on other sites
ZX500 0 #3 Posted June 9, 2013 Mod 72048 ser 9900314 With Kohler mod cv15s ser 2902515061 thanks Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,393 #4 Posted June 9, 2013 Here is the wiring diagram. Go to Toro https://lookup3.toro.com/request/request.cfm Enter the 72048 model number and 9900314 serial number. Download the Toro 260-Series Tractor Service Manual: 492-4765 66 pages On page 6-5 the low voltage module operation is explained. Check to make sure the voltage in the B+ wire is the same as the battery voltage. Also make sure the ground is actually grounded to the chassis. Garry Share this post Link to post Share on other sites
ZX500 0 #5 Posted August 2, 2013 Sorry it took so long, by the b+ wire is this the b+ connected to the middle post on the regulator? If so I have 13.95 at the battery 14.04 at B+ on the reg. Right ac on the reg 14.09 and left AC is14.30 hope this helps. Any help would be great Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,393 #6 Posted August 2, 2013 No ---- the B+ on the low voltage module. If you look at the charging circuit diagram you will see the B+ of the low voltage module (Pink), the B+ on the regulator (Violet) and the B+ of the battery (Red) are all connected when running so each point should have the same voltage reading. When you measure this use the same battery (-) post connection for the voltmeter black lead for all measurements. Now move the black lead to the black wire on the low voltage module and test again. Should have the same readings. This makes sure the module is seeing the same voltage as the regulator and the battery. The low voltage module is triggered on if the voltage drops to 11.3 volts. It puts the light out when the voltage returns to 12 volts. What we are trying to determine is if the voltage is bad or the module has failed. When you measure the AC voltage at the regulator you need to remove the connector from the regulator and plug a test lead into each AC stator wire. Does not matter which lead goes to which wire. Make sure you meter is set for AC voltage. Another test you can do. Turn the key to the RUN position with the engine NOT running. Measure the voltage across the battery posts and record it. Now keep the black lead on the same battery (-) position and move the red lead to the regulator DC+ terminal. You should have the same DC voltage reading. What you are checking is the wiring's ability to get the charge current to the battery. A voltage drop is a sign of resistance in the circuit and the regulator will try to compensate but goes nuts in the process or does nothing. Garry Share this post Link to post Share on other sites
