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Hey guys, bought a 2nd g35 6mt that had a minor front end collision which was repaired. I drove the car home and new it had some issues which is why I got a great deal. Anyhow Problem: Turn Key Nothing-no lights dash, sounds, clicks, nothing.
So far: already aware of knock sensor code which eplains when I drove it home from sellers bank it idle so low you couldnt let off gas. Ran code-knock sensor have 1 and the subharness. Got the car home and went to drive it and no power so I changed the battery cables after testing battery which was fine. Used my Power Probe 3 to check battery voltage, fuses, and still nothing. Any suggestions, thoughts similar issues would be greatly appreciated?
I hope you've figured this out by now. You have no power to anything? Is the clock running, or cabin lights, etc? You may just have to use your voltmeter and start tracing from the battery. There are a couple giant fuses in the "fusible link holder" which is part of the battery cable's + terminal. Start there and trace things as far as you can. What year is the car?
I still haven't. Sorry, my senior yr of college just started & I haven't had much time to look at it. Its an 03 6mt. My daily is a 03 5at, this one I picked up cheap because it was idling super low and had been slightly wrecked in the front. Guy was worried about the idling issue so he let her go cheap. I ran the codes and the idling issue is a knock sensor which I have another along with the harness. Funny thing is I drove the car 30 miles home and it was fine. I changed both battery terminals & upgraded the ground wire. All the fusible links are fine and all the fuses are to, plus I Power probed same voltage before and after those links. Only box I have not checked is the one behind the battery next to the firewall. Could the knock sensor do this? Had the battery tested and its fine to. I am at a loss man?
The "behind the battery" box is an important one - the IPDM (Intelligent Power Distribution Module). There you will find relays for most of the high power functions of the car - including the Start relay - and sadly those are not individually replaceable. There are also MANY fuses in that box so this would be your next logical place to look. Check that the module and harness are dry, it doesn't take well to being wet.
Glad you have a backup G to drive in the meantime. Ha!
Thanks 05 Skyline Sedan! If that Start Relay is bad, would that give me no power at all? The thing that has me puzzled is I am getting absolutely nothing. No lights, no interior lights, no clicking, no anything. I guess I will look there tomorrow & hopefully have some good news to post.
So, you got no headlights? No dash lights, no radio nothing?
Mine won't start now and then, but it's the clutch interlock switch, I just bend it back and all is good.
You may have a major "fusible link" broken somewhere.
Thats right man nothing at all. Where are all the fusible links? i thought they were just attached to the battery terminal? There cant be to many things that will cause no power what so ever
No, if absolutely nothing is powered then your problem is at or near the battery.
Do you have a voltmeter or something you could use just to trace how far the power is getting from your battery? Even a 12v light on a couple wires would do.
Start at the battery terminals - voltage there?
Now try the battery "+" post to any metal on the car body. Voltage? (If not, trace your ground lead from battery to body.)
Next is the fusible links on the + terminal battery cable. (See below from '06 book but probably close). There is one giant wire coming off the top of the cable that goes directly to the starter. It's NOT fused but always connected from battery + all the way to the starter motor. (That's why it has such thick insulation.) All those points on top of the connector should read voltage (see 2nd pic).
The next thing is the actual fusible links which are simply giant fuses. They're visible through a clear plastic cover and though I've never seen an example of a blown one I think it would be pretty obvious. Probably clouded or even melted plastic.
If any of those giant fuses are blown I recommend you have a pro look into WHY that might have happened before you simply replace the link and reconnect everything. It takes a major short to blow those links.
Yea man I have a Power Probe 3. Now I am far from an expert but I read 12.5 volts at the terminal then 12.5 volts after the bunch of fusible links. the 120 amp one is kinda black darkish where as the others are still pretty shiny chrome/aluminum finish look. I probed my ground wire which I upgraded along with both terminals to eliminate bad connection at the battery. If that starter wire connection direct from the battery was bad, loose, etc. would that cause no power, lights etc. too or just the starting?
Originally Posted by 05_SkylineSedan
No, if absolutely nothing is powered then your problem is at or near the battery.
Do you have a voltmeter or something you could use just to trace how far the power is getting from your battery? Even a 12v light on a couple wires would do.
Start at the battery terminals - voltage there?
Now try the battery "+" post to any metal on the car body. Voltage? (If not, trace your ground lead from battery to body.)
Next is the fusible links on the + terminal battery cable. (See below from '06 book but probably close). There is one giant wire coming off the top of the cable that goes directly to the starter. It's NOT fused but always connected from battery + all the way to the starter motor. (That's why it has such thick insulation.) All those points on top of the connector should read voltage (see 2nupd pic).
How many wires are supposed to come of the pos? I only have one coming of + and it goes from terminal to the outside stud of the 2 which run into that clear collection of fusible links. This leaves that inside bolt stud by itself with no wire connecting to it. Is this correct?
The next thing is the actual fusible links which are simply giant fuses. They're visible through a clear plastic cover and though I've never seen an example of a blown one I think it would be pretty obvious. Probably clouded or even melted plastic.
If any of those giant fuses are blown I recommend you have a pro look into WHY that might have happened before you simply replace the link and reconnect everything. It takes a major short to blow those links.
No, if absolutely nothing is powered then your problem is at or near the battery.
Do you have a voltmeter or something you could use just to trace how far the power is getting from your battery? Even a 12v light on a couple wires would do.
Start at the battery terminals - voltage there?
Now try the battery "+" post to any metal on the car body. Voltage? (If not, trace your ground lead from battery to body.)
Next is the fusible links on the + terminal battery cable. (See below from '06 book but probably close). There is one giant wire coming off the top of the cable that goes directly to the starter. It's NOT fused but always connected from battery + all the way to the starter motor. (That's why it has such thick insulation.) All those points on top of the connector should read voltage (see 2nd pic).
The next thing is the actual fusible links which are simply giant fuses. They're visible through a clear plastic cover and though I've never seen an example of a blown one I think it would be pretty obvious. Probably clouded or even melted plastic.
If any of those giant fuses are blown I recommend you have a pro look into WHY that might have happened before you simply replace the link and reconnect everything. It takes a major short to blow those links.
Just saw your pic & wiring diagram. Will be extremely helpful Thanks!
Skyline I am convinced it is that one upper terminal fusible link now. Suprisingly it is not very obvious it is blown. No break like normal fuse, no melted anything, no cloudiness. Although the 4 links on bottom in a row still have a somewhat shiny finish whereas the upper single has a slightly darker finish. Thing is, that is all it could be with what i ruled out. only a few options for 0 power and this is last! I am going to switch my cars link assembly with the new G which should tell the story. Thanks man.
OK, I've just learned something myself. The 120A link (the BIG one) is in fact just to the right of the single bolt nearest the battery + terminal. I think that is what you are describing as being slightly discolored? This would be a logical answer to the puzzle and the likely source of your problem.
I've found a couple pics somebody else posted of a blown one. Hard to see it's blown from the top but easy to see when lit from behind by a flashlight.
I only hope that the problem which blew the link in the first place has been resolved so you don't blow your NEW one...... Let us know.
I got this (yellow icon with key) & still wont turn on i don't have any power in the vehicle
I too have that problem
I got this (yellow icon with key) & still wont turn on... i don't have any power in the vehicle except only the key fob slot - pushbutton & icon to step on the break pedal & push the button THEREFORE the icon on the mini screen disappears.. i check my 2 keys & change the battery my car engine battery good for 1 more year likewise i check all the fuses... i don't know nor read anything about the (positive terminal fuses) i won't go that far to touch it = due to i do do NOT any other problem... praying i kindly respectfully get a response/advice... thank you On the far left side picture to connect looks like it's burnt 🤦♂️ On the fuse 100a (far right) is not silver not crack only in bluish burnt color
