Australian Navara D40 No Ignition/Accessory - Help please?

402 Views 14 Replies 3 Participants Last post by gfromleeds, 11 d ago

D40Jimbo

Discussion Starter · 2 mo ago (Edited)

4

Hello all. Hoping someone here can assist - I have searched but came up empty.

I was replacing the thermostat on my D40 2010 Diesel (Thai Right Hand Drive Model) and i foolishly touched the uninsulated handle end of my ratchet to the bolt under the rubber boot attached to the alternator (photo 1) there was a few sparks and i pulled it away quickly but i have now lost all (almost all) power to the car. I say almost all because the battery is still perfectly healthy and the cabin lights turn on when opening the door - the beeper sounds when turning on the headlights on the indicator stalk and the instrument panel does light up - but that's where functionality ends)

Upon inserting the key in ignition and turning to accessory lights there is no response - neither does it kick over if turning the key further to turn the car on.

One would surmise that a fuse or relay got fried when caused the short, but i've checked every fuse i can find and they're all intact - main links in the positive battery lead are all intact as well which makes me think its a relay? and while investigating this forum i find that i perplexingly seem to be missing a relay box??

i have the 'in cabin' fuse box next to the glove box (Photo 2), the main fuse box behind the battery (photo 3) and the additional fuse and relay box at the rear of the engine (near the firewall photo 4) but from what I've seen there should be an additional box where there should be a few more relays in the blank space between the air filter box and the additional fuse/relay box at the rear. is this possible?

Is there something else I should be checking?

Thanks very much.

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landmannnn

· #2 · 2 mo ago

D40Jimbo said:
Hello all. Hoping someone here can assist - I have searched but came up empty.

I was replacing the thermostat on my D40 2010 Diesel (Thai Right Hand Drive Model) and i foolishly touched the uninsulated handle end of my ratchet to the bolt under the rubber boot attached to the alternator (photo 1) there was a few sparks and i pulled it away quickly but i have now lost all (almost all) power to the car. I say almost all because the battery is still perfectly healthy and the cabin lights turn on when opening the door - the beeper sounds when turning on the headlights on the indicator stalk and the instrument panel does light up - but that's where functionality ends)

Upon inserting the key in ignition and turning to accessory lights there is no response - neither does it kick over if turning the key further to turn the car on.

One would surmise that a fuse or relay got fried when caused the short, but i've checked every fuse i can find and they're all intact - main links in the positive battery lead are all intact as well which makes me think its a relay? and while investigating this forum i find that i perplexingly seem to be missing a relay box??

i have the 'in cabin' fuse box next to the glove box (Photo 2), the main fuse box behind the battery (photo 3) and the additional fuse and relay box at the rear of the engine (near the firewall photo 4) but from what I've seen there should be an additional box where there should be a few more relays in the blank space between the air filter box and the additional fuse/relay box at the rear. is this possible?

Is there something else I should be checking?

Thanks very much.

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Welcome to the forum!

It's pretty likely you have blown the power fuse that is in the positive battery terminal.
Also known as a fusible link.

gfromleeds

· #3 · 2 mo ago

As landmannnn said almost definitely the master fuse on the positive battery terminal has blown!
I've done it (exactly as you did) and mine was the fuse!
Test it or change it because mine "looked" intact but had blown .
It's under the red plastic cover on the battery positive terminal

landmannnn

· #4 · 2 mo ago

gfromleeds said:
As landmannnn said almost definitely the master fuse on the positive battery terminal has blown!
I've done it (exactly as you did) and mine was the fuse!
Test it or change it because mine "looked" intact but had blown .
It's under the red plastic cover on the battery positive terminal

Those fusible links are quite expensive from memory?

gfromleeds

· #5 · 2 mo ago (Edited)

I know I got mine used from eBay for around £5 but if I remember correctly, I made a temporary patch lead out of some spade connectors, and I think 2 x 30amp fuses parallel while I waited for delivery.
But I do not recommend anyone do that, and if they do, it's 100% on their own back!

D40Jimbo

Discussion Starter · #6 · 2 mo ago

Thank you all, this was one of my first theories but a visible inspection of the links looked good. i will check again tonight.

"Test it or change it because mine "looked" intact but had blown"

Any tips for "checking" it?

thanks again all.

gfromleeds

· #7 · 2 mo ago

I put a multi meter across it
I think there's 3 (or possibly 4 ?) Fuses there and I can't remember which one it was

D40Jimbo

Discussion Starter · #8 · 2 mo ago

This seems to be the exact right answer (the plastic fuse cover/window on top was covered in a layer of black dust/grease so didnt even know it was there (all the ones on the back are fine)

I have ordered a replacement and will update once installed

is there a trick to undoing these 2 bolts? SUPER tight and very hard to get a good purchase as the whole link assembly is now loose and have to hold with one hand while attempting to undo the bolts.
Thanks again.

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gfromleeds

· #9 · 2 mo ago

Just get some penetrative oil on it and let it soke

D40Jimbo

Discussion Starter · #10 · 28 d ago

Update to close this out/

I finally got the bolts off over last weekend and replaced the unit, this fixed the problem.

Thanks for the advice.

landmannnn

· #11 · 27 d ago

Good news!

gfromleeds

· #12 · 27 d ago

Good news and perfect example of why they say disconnect the battery before working on your vehicles lol

D40Jimbo

Discussion Starter · #13 · 12 d ago

gfromleeds said:
Good news and perfect example of why they say disconnect the battery before working on your vehicles lol

100%

Have never ever done it... changed oil, coolant, turbos/BOVs and other minor engine works for over 20 years. this was a learning experience and I will disconnect the battery every time i do anything moving forward

landmannnn

· #14 · 12 d ago

I must admit I never disconnect the battery, you have changed my mind!

gfromleeds

· #15 · 11 d ago

I used to, then got lazy and didnt bother right up up till I changed the alternator and did exactly the same as you! Thought I'd bricked something expensive untill I realised there was no power to the alternator cabled

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