Join Date: Dec 2009
Location: Fort Collins, CO
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Yes, grab a digital multimeter (or buy one at Home Depot, nothing fancy is needed), set it to DC volts and check the voltage across the + and - battery terminals at two times:
1) Before starting the car. You should see around 12.5 volts. Anything under 12V means your battery either isn't getting charged or isn't holding the charge. Many cars won't even start if the battery is under 12V.
2) Right after starting the car. Right after starting, you should see the system running about 14.2 to 14.4 volts. After a few minutes that may drop to 14V or a hair less, as the Murano system is smart enough to drop the charging rate when the battery is at full charge.
Stay there for a few minutes and if the lights start to flicker, check the voltage while that's happening. If the voltage drops (likely) you have a charging system problem, probably either the alternator or the voltage regulator built into the alternator.
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