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Ask Mike S. Your Own Question
Mike S.
Mike S., ASE Certified Technician
Category: Nissan
Satisfied Customers: 6925
Experience:  ASE Certified since 1985
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Are there any circuits on a 91 nissan maxima that is not

Customer Question

are there any circuits on a 91 nissan maxima that is not fused?
JA: Have you checked all the fuses? Do you have a wiring diagram?
Customer: yes
JA: Are you fixing your Maxima yourself? What have you tried so far?
Customer: yes
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 3 months ago.
Category: Nissan
Expert:  Mike S. replied 3 months ago.

Hi, I am Mike, welcome. I'm reviewing your question.

Expert:  Mike S. replied 3 months ago.

Normally the alternator is not fused and sometimes the headlight switch also.

If you tell me the engine that came in this I can download the wiring diagram and double-check.

Expert:  Mike S. replied 3 months ago.

Actually it only came with the 3.0 and the alternator as well as of course the starter are unfused.

Customer: replied 3 months ago.
Disconnected alternator and starter and removed all fuses. There is 12 volts on the disconnected negative battery cable.
Expert:  Mike S. replied 3 months ago.

Ok, you should have mentioned you were trying to trace down a battery drain, although I did assume that. You need to use an ammeter cause although it may be 12 volts, the radio memory presets or a clock or the computer constantly has a trickle amount of voltage, but the amperage should not be over 50 mA, that's 0.050 of an amp.

Expert:  Mike S. replied 3 months ago.

Did you disconnect all the wires from the alternator?

Expert:  Mike S. replied 3 months ago.

There are numrous fusible links also.