My 1990 Maxima's radio (non-Bose system) loses it's radio presets every time the car is turned off. The fuse labeled 'Electronic Batt' is OK. What might cause this? How can I troubleshoot it?
Thanks!
- posted
19 years ago
Radio loses presets when Maxima is turned off
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- posted
19 years ago
Get a voltage tester ( nothing fancy, just a test probe with a built in 12V light bulb) and test these:
Car radio typically have two (sometimes 3 wire for power:
- Power for the radio itself, normally goes on and off with ignition switch
- Power that is "always" on for keeping "station preset memory"
- the third, if present is for lighting (connected to dimmer circuit). The voltage present will vary with the dimmer setting.
Check and verify that these are working as it should. Nerwe radio have "non-volatile" memory that keeps preset settings without needing external power. I don't know if your radio has this kind. I think not.