I spent a good part of Sunday afternoon trying to track down a parasitic key-off battery drain on my car. (05 GT convertible -- The only aftermarket electrical mod is sequential tail lights, car is 100% stock) After charging the battery overnight with the ground cable disconnected from the car, I connected an amp meter in series, with the ground on the battery and the red lead on the end of the cable.
Initially, it was showing a 8.5 amp drawdown (amp meter set in the 20A range). I realized that each time I reconnected the amp meter, it started complied the circuit and set off a series of actions, like the cd shuffle mode, interior lights, ect. After giving it a few minutes to calm down, the draw fell to 2.5 amps. Then I started to pull the relays and fuses, one at a time. Pulling one fuse, marked smart junction box feed #6, caused the draw to fall to 1.5 amps. I reinstalled it and the draw stayed at 1.5 amps I switched it with another fuse and the draw stayed at the rest of the day. I paid special attention to the fuses under the smart junction box, but they showed no change in the draw.
I pulled every fuse and relay both under the hood and in the box below the smart junction box, but 1.5 was what the meter showed the rest of the day, no matter what I did. When I came back to the fuse that produced the first reaction, I saw no change.
What should the battery draw be? I’m thinking .5 amp range.
Any suggestions for additional tests or where else to look or another test methods? I disconnected the suspect radio fuse and the fuses for the shaker 500 amp, but no noticeable change there.
What should the battery draw be? I’m thinking .5 amp range.
Any suggestions for additional tests or where else to look or another test methods? I disconnected the suspect radio fuse and the fuses for the shaker 500 amp, but no noticeable change there.
Initially, it was showing a 8.5 amp drawdown (amp meter set in the 20A range). I realized that each time I reconnected the amp meter, it started complied the circuit and set off a series of actions, like the cd shuffle mode, interior lights, ect. After giving it a few minutes to calm down, the draw fell to 2.5 amps. Then I started to pull the relays and fuses, one at a time. Pulling one fuse, marked smart junction box feed #6, caused the draw to fall to 1.5 amps. I reinstalled it and the draw stayed at 1.5 amps I switched it with another fuse and the draw stayed at the rest of the day. I paid special attention to the fuses under the smart junction box, but they showed no change in the draw.
I pulled every fuse and relay both under the hood and in the box below the smart junction box, but 1.5 was what the meter showed the rest of the day, no matter what I did. When I came back to the fuse that produced the first reaction, I saw no change.
What should the battery draw be? I’m thinking .5 amp range.
Any suggestions for additional tests or where else to look or another test methods? I disconnected the suspect radio fuse and the fuses for the shaker 500 amp, but no noticeable change there.
What should the battery draw be? I’m thinking .5 amp range.
Any suggestions for additional tests or where else to look or another test methods? I disconnected the suspect radio fuse and the fuses for the shaker 500 amp, but no noticeable change there.