The radio in my Caprice has never saved anything since I bought. Always have to change band and station. Figured it was a problem with the radio and decided on a new radio that some modern features, and during installation I'd investigate the wiring just to be safe.
So, the other day I'm talking to my brother-in-law, whose dad sold me the car, and I mentioned that I was putting in a new radio because the original wouldn't hold memory. That's when I find out that supposedly the fuse was pulled due to an excessive power drain. Well, figured I'd better check that out before installing a new radio.
So, get the battery disconnected, get my multimeter connected... There's no noticeable power draw at all. 0.000A with the car turned off. Seems a little odd to me, no draw to maintain even the computer. But, I then put in a new fuse in the radio memory circuit. Now there's a 0.23A draw.
So that leaves me with two questions:
1) 0.23A is definitely too high of a power draw, right? (NOTE: I poked at it some more, and noticed that the clock display does not turn off when the car is turned off, and I am beginning to think that's the problem)
2) Should there be more power draw with the car off and radio disconnected? Or do the computers in these cars somehow not draw power to maintaon memory?
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So, the other day I'm talking to my brother-in-law, whose dad sold me the car, and I mentioned that I was putting in a new radio because the original wouldn't hold memory. That's when I find out that supposedly the fuse was pulled due to an excessive power drain. Well, figured I'd better check that out before installing a new radio.
So, get the battery disconnected, get my multimeter connected... There's no noticeable power draw at all. 0.000A with the car turned off. Seems a little odd to me, no draw to maintain even the computer. But, I then put in a new fuse in the radio memory circuit. Now there's a 0.23A draw.
So that leaves me with two questions:
1) 0.23A is definitely too high of a power draw, right? (NOTE: I poked at it some more, and noticed that the clock display does not turn off when the car is turned off, and I am beginning to think that's the problem)
2) Should there be more power draw with the car off and radio disconnected? Or do the computers in these cars somehow not draw power to maintaon memory?
Sent from my SM-G986U using Tapatalk