Skip the auto shop - Our mechanics make house calls

Q: Accessory / Ignition Power is inconsistent

asked by on

Once in a while when I get done driving and I turn my key to the off position and take it out of the ignition I find that I have no accessory power. I then put my key back in the ignition, turn it all the way as if to start the car, and the dash lights flicker and dim out to black but nothing else happens. So I take the key all the way out and then reinsert it. Then I turn it to the “on” position and find that I now have accessory power and my car will start just fine. When my car accessories are receiving power, the battery gauge shows a strong charge every time, so I don’t think it’s a battery issue.

About a month ago I was having this problem a couple of times a day, so I replaced the ignition switch, hoping that it would solve the problem. After that, the problem did not occur for about two weeks, but now it has started happening again. While I was in the steering column, all of the ignition wires and the wire connector looked fine as far as I could tell.

Any ideas? Thanks!

My car has 94500 miles.
My car has an automatic transmission.

A: Hello there, thank you for asking about you...

Hello there, thank you for asking about your 2004 Nissan 350Z. This is a commonly known issue with the 350Z. You should have a Check Engine Light on when this happens which will be likely related to NATS computer codes. There are a lot of unanswered questions about this issue. I would recommend having an expert from YourMechanic come to your home to diagnose using a scan tool which will provide data from the car’s computer which may help to pinpoint the problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car doesn't turn on.

I'm going to presume that you mean that your car cranks, but the engine does not start. An engine needs fuel, compression and ignition in order to run and these things have to occur at the right time. If one...

Q: car cranks bur wont stay running.

It's time to have a mechanic come out and check the basics on your Grand AM. The fuel pressure needs to be tested and the ignition spark needs to be verified. Correct crankshaft position sensor signals should also be verified....

Q: Turbo wastegate stuck closed. Need solution.

Hello. P2261 is the code for an issue with the vehicle's turbocharger bypass valve, also known as the wastegate. If the computer detects an issue with the wastegate circuit or signal it will activate the Check Engine Light in order...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...