Re: Battery or Generator Problem

Posted by HH56 On 2016/12/4 14:21:23

As a first step I would remove the battery cables and clean the cables and battery posts just to make sure corrosion hasn't added a high resistance. That has been a frequent cause of some things working and things that require heavy current not working. Also check tightness of bolts where the cables attach to engine and solenoid.

If that doesn't help it gets more involved. The items you mention are on separate circuits. Turn signals have their own fuse, brake lights come off a circuit breaker. Both of those are fed via the ign switch. The OD has its own fuse and the horn has none. Both of those are fed via the battery terminal on starter solenoid as is the ign switch. The only common item is the battery or starter solenoid terminals.

The ammeter is between the solenoid terminal and ign sw so there could be a loose connection at the ammeter that would affect the rest of the items -- except the horn. If there is a bad connection, circuits fed by ign sw could be prevented from working. If that is the case there is not a ready explanation for why the radio and lights still work other than you note they are weak..