My wipers radio and HVAC turn on at random
so I have checked the connections at battery and all fuses relays
I need to check out put off alt but unsure where an easy place to check it as the alt is under the supercharger is the a good spot to check the alt ?
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Voltages for battery and alternator are usually measured on the battery terminals. Engine off, battery voltage should be around 12.5 vdc. Engine idling or higher, between 13.1 to 14.5 vdc. The alternator is wired directly to the battery; internal circuitry prevents drawing power. If engine running voltage is below 13 volts, the alternator may be faulty, fusible link wire (12v connection to alternator) broken or the drive belt is loose (belt tensioner worn out). The drive belt should be tight when pressing on it.
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