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Discussion Starter · #1 ·
Hi, I have a 2015 Pathfinder and it seems to have a possible grounding issue. Symptoms are you are driving and suddenly it will no longer accelerate or move. Put it in neutral and you can rev the motor. Turn the car off and it won't start again. Turn the hazards on with the headlight on and it will flash the head lights. Dash will even flash with hazards. Seems to be back-feeding a ground somewhere.

Things i tried were cleaning up the battery ground. Running a booster cable from the battery to a point on the engine.

If you boost the car it will fire back up and you can drive away with no problems until the next time.

Any idea's would be appreciated.
 

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2015 Pathfinder SL - Tech 4WD
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Welcome to the forum.

How old is your battery? Modern vehicles behave funny when the batteries are not running at the optimal voltage.
 

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2019 Nissan Pathfinder SV 4x4
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I'd poke around in what ever box contains the relays for the headlamps and marker lights to look for green crusty corrosion. You might have to get a look under the box. Only other thing I can think of is rub-throughs on wire looms, etc.

That's a weird one.

Any aftermarket electronics cobbled in anywhere? That's usually a bad sign too.
 
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Discussion Starter · #4 ·
Thanks for the welcome. Battery is OG, that does sound plausible if the battery has an internal issue. Make sense why the starter clicks like it's dead. I'll give that a go and check that relay box as well.
 

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2019 Nissan Pathfinder SV 4x4
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A quick check you can do is check voltage across the battery terminals with a volt meter and the engine idling. You should see ~14VDC this way. Any less indicates a bad battery or charging system issue.
 

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2019 Pathfinder S
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Look around the engine compartment for grounding points, i.e. several wires attached to a bolt or screw, then take it apart using a wire brush and contact cleaner to make the connections nice and shiny and reassemble. I solved many problems with this approach.
 

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Something like this would likely have codes stored somewhere. If you turn on some loads, like headlights, interior lights, and crank the engine, a bad battery would dim the lights a lot. It does sound like a bad ground, but there are a lot of locations for them.

Be careful looking for 14v on the battery while running. A lot of newer vehicles run the alternator as little as possible for efficiency. I've seen some, running, dip into the high 11v range, and that's totally normal.

There are a few bulletins out there on ground cleaning, and they say not to scuff painted surfaces, since you are now introducing raw metal to the ground point, and rust. The right bolts are designed to cut into the metal under that paint.
 
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