Need help finding short circuit (Page 1/1) Leigh Dleedlee APR 27, 12:49 AM My fiero has a short circuit that I am trying to chase down. I found a short in the relay near the battery, but I can't figure out what the relay is for. The short is in a grey or brown (faded and dirty, hard to tell) wire labeled A2 on the relay. My diagnostic tool showed a negative current and a short circuit in both the relay and the socket. Leigh Dleedlee APR 27, 12:51 AM olejoedad APR 27, 07:57 AM The pictured component is a connector for the chassis wiring harness to the taillight harness and engine harness. The name of the connector is C-500. C-500 pin A-2 is a ground to the engine block.