Battery installed by Idiot, ME.

Hi guy's, I had a brain fade the other day, was installing new battery,(Old one keep going flat) but it was raining and i just threw the new one in, didint take any notice and ...well the rest is obvious, a small spark when i attached the earth terminal to the positive , i thought yes you bugger there must be a small short, look into u later. went to start no power, angain obviously..........
gave myself a rather long talkin too, and started to chase fuses,
Main ignition 65 amp blown next to battery,and 15 amp fuse inside at kickboard ECU engine control unit 15 amp,
Have breached the main fuse with ......., so now have ignition and dash lights to all but Glow light, and battery in engine will wind over and over but willnot start.
I am thinking solinoid or another fuse ?
Also the ECU fuse blows again.
I have Gregorys manual for the car , but not much elec knowledge, but hey i'm here to learn and help if poss, will be grateful to any tips in sortin this out.

im a sparkie and reverse polarity is not a good thing, i think the ecu may be fired as it keeps blowing your fuse. i hate to be the bearer of bad news but i think the repair bill is going to be hefty. i know for a fact but stereos dont work after conecting them backwards, dont ask me how i know but as you turned the key with the battery backwards everything in your car has seen reverse voltage, so anything with electronic in them are probably buggered, hopefully you did not have a cb or anything too.

i would first pull a spark plug lead and see if you still got spark. then see if your fuel pump still operates.

hopefully someone else chimes in and its an easy fix but i think at a bare minimun your up for a new ecu.

yeah thanks, Bobbrumby,
i figured about the same, will remove it and get it checked, there should be some arround the wreckers i'm hopping.
but any other people who have an idea would be happy to hear.
P.S. it is a diesil non turbo

sorry thought it was a petrol, hopefully the glow plugs and stuff all come out of the one box, but i have no further if any knolledge on diesels, good luck.

I guess the good news is that It's a diesel in that situation.

Hows the glow plug fuse link going next to the 65amp one you blew?

Is that soft and not burnt?

If It's hard as a rock and looks burnt then could be an issue?

Hi there AB, thanks for havin alook at my issue, the Glow plug fuse link is still good,
But i think i may have had a little moment to think harder and ....
When i went to the fuel section (because i can crank it over, so fuel had to be the issue),
it showes me a apth to follow, starting at the ..oh well it starts on page 81 item 8,
Preheat system.
will keep all updated as i progress or stall, lol.

What model Patrol are we talking about? is it a GQ 4.2 diesel?

If so, the 15 amp fuse I think you are referring to, also supplies power to the injector pump, this would explain why the vehicle is not starting.

I would start by disconnecting the glow plug timer control unit (under fuse box inside vehicle) and see if the 15 amp fuse blows again.

If it doesn't blow, I would retry starting it, at the moment it should start without glow plugs but to be on the safe side you could supply direct power to the glow plug rail (busbar) for about 15 seconds and then try cranking it.

There is also a small possibility that you have damaged your alternator

Hi Yender, 1st up yes it is 89 42 diesel.
Me not being very electricly minded , have viewed the wiring diagram and see what you are sugguesting,
i will try this 1st , was then going to just try and supply the injector direct from battery and see if she would kick over.
weather is right to try and start without glow if in middle of day and have a good new 760cca battery to use also
once again thanks for the tips guy's,

Well Guys, a little update,
really only slow because, like all life makes us busy.Anyway.................yada.....

The Beauty's up and going again, thanks to following, Yendor The Greats tips
Disconected the Glow plug timer unit, bridged the 65 amp fuse with ...,wire...
replaced the 15 amp fuse
and with good conditions and good Batt, She drew a breath and a yehah went up from the hugs and kisses,
who was watching from the pool, ....yadah.yadah.......
Thank's guys the news is good, now need to follow up on why the old batt decided to die,
might be one of those earth issues i've read.
the old girl ain't rego'ed anymore , needed a small box for the 2 and fro work thing.
But now with the tips arround here and i think i'm winning with the jobs to do, no must do, so a restoration could be on the cards.
got to figure out how to upload some pics and show her to you all.
And the new fuse15 amp

Isn't the idea of a fuse that it blows first, before ecu's and other sensitive equipment blows up.

Hi Ian,
yeah the fuse blows when i had the control unit plug in,
i havnt chased up any further yet, but if all i need is to replace this to get the glowies going again , all will end up good.
Thanks for checkin out the thread
p.s.s, all the dash lights worked and fuel amp temp workin.
forgot to look at radio, have tacken batt out to top up on charger

Quote:

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Originally Posted by rockndot

Well Guys, a little update,
really only slow because, like all life makes us busy.Anyway.................yada.....

The Beauty's up and going again, thanks to following, Yendor The Greats tips
Disconected the Glow plug timer unit, bridged the 65 amp fuse with ...,wire...
replaced the 15 amp fuse
and with good conditions and good Batt, She drew a breath and a yehah went up from the hugs and kisses,
who was watching from the pool, ....yadah.yadah.......
Thank's guys the news is good, now need to follow up on why the old batt decided to die,
might be one of those earth issues i've read.
the old girl ain't rego'ed anymore , needed a small box for the 2 and fro work thing.
But now with the tips arround here and i think i'm winning with the jobs to do, no must do, so a restoration could be on the cards.
got to figure out how to upload some pics and show her to you all.
And the new fuse15 amp

---

That's great news, good job mate.

You will need to fit the correct 65 amp fuse ASAP.

If that 15 amp fuse only blows when the glow plug timer is connected then yes it is stuffed.

You have a couple of options.

1. Replace the unit.

2. Pull the cover off the unit and inspected it, it might be repairable. It might have a diode that is designed to blow when the battery is connected up in reverse. If so, it would be mounted on the circuit board closes to the plug and one end will be connected to an earth and the other end will be connected to the ignition wire (just follow the wires through the plug and onto the circuit board). Have a look and see if anything in this area is blown or you can see black arc marks. You may need to try and post some pictures.

3. You can just mount a momentary push button switch in the dash, we can then wire it up so you turn the ignition on, hold down the button for the 10-15 seconds and then start the old girl up.

Cheers

Rodney

Quote:

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Originally Posted by Ian2011

Isn't the idea of a fuse that it blows first, before ecu's and other sensitive equipment blows up.

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In automotive use the fuse main purpose is to protect the vehicle wiring from overheating and catching on fire if a short in the circuit occurs.

They are know as a slow blow fuse and even though they have a rating of say 15 amps under the right conditions it might not blow until it reaches 18 amps.

ECUs will have protection built in them for under voltage supply, over voltage supply and voltage spikes.

What Rodney said X2

The supply fuse at the distribution or fuse panel protects the wiring which is why many are all the same values.

If the equipment requires protection that is accomplished either internally or with a fuse holder on the back or possibly a few inches along the supply cable.

thanks for the follow up guys , great reading/info.
will remove the said controll unit today and have a gander Rodney.
p.s. i just got your tag.....der....i'm slow i know.

p.s.s whats the go uploading photos ?
screen ask me for a url ..?

cheers rock

Quote:

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Originally Posted by Yendor

That's great news, good job mate.

You will need to fit the correct 65 amp fuse ASAP.

If that 15 amp fuse only blows when the glow plug timer is connected then yes it is stuffed.

You have a couple of options.

1. Replace the unit.

2. Pull the cover off the unit and inspected it, it might be repairable. It might have a diode that is designed to blow when the battery is connected up in reverse. If so, it would be mounted on the circuit board closes to the plug and one end will be connected to an earth and the other end will be connected to the ignition wire (just follow the wires through the plug and onto the circuit board). Have a look and see if anything in this area is blown or you can see black arc marks. You may need to try and post some pictures.

3. You can just mount a momentary push button switch in the dash, we can then wire it up so you turn the ignition on, hold down the button for the 10-15 seconds and then start the old girl up.

Cheers

Rodney

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Hi Rodney,
i got the little green box out ECU, and checked all out
Wires and circut board look clean as, brand spankin clean, been no issue there
I didn't get into town today to get a few more fuses, and the multi meter should be here tomorrow,
so would like to plug the fuse back in, and see if it blows again,
but had to move her and use her today arround the block.
will keep you updated.
p.s. got the picture thing happening.thanks

well guys,
Plug all back in and still blows that 15 amp fuse , so the box must be knackered, although nothing looked burnt or damaged.
Might need to get a temperary glow thing happening, until i chase another unit.
Wondering if someone could explain how to,
Cheers rock

Quote:

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Originally Posted by rockndot

well guys,
Plug all back in and still blows that 15 amp fuse , so the box must be knackered, although nothing looked burnt or damaged.
Might need to get a temperary glow thing happening, until i chase another unit.
Wondering if someone could explain how to,
Cheers rock

---

The connector that plugs into the glow plug module should be a 10 pin connector, 5 pins on the top and 5 pins on the bottom.

With the top row of pins there should be only 2 pins that are being used, 1 pin should have a brown wire in it (this is the ignition feed from the 15 amp fuse you keep blowing) and the other wire colour should be Green wire with a White trace, (this wire connects to the glow plug relay).

All you need to do is connect two wires, one to the brown wire and one to the Green with a White trace and then connect the other end of the wires to your momentary push button switch.

To test, connect your test light or voltmeter onto one of the glow plugs or busbar, turn ignition on and then push the switch in.

The test light or voltmeter should now light up or show about 12 volts.

I would use a good quality momentary push button switch, the last thing you would want is the contacts in the switch to short together causing the glow plugs to stay on.

If you intend on having this permanently setup with the switch, we can add a warning light into the circuit.

Thanks Rodney,
You got a knack for speaking plain english to us not Yet educated,
I got the geist here, will call in to parts shop next day or two,
this may be a longer install, than i would hope, but plenty of other bridges to......yahdah ya
Might like to add that light,
would that just be added on glow plug side of switch ?

The light gets a little bit more tricker.

Yes you could just purchase a small warning light and wire it on the glow plug side of the switch.

But what you really want to know is, if the power is getting to the glow plugs (not just on the other side of the switch).

There is a another wire in the connector ( White with a Blue trace) that powers up when the glow plugs have power (this will show you that the glow plug relay and fusible link are working).

Now if you want to use the original warning light in the dash, this light switches earth, so we would need to use a relay.

It's easy enough, you will just need to get a relay.

You Guy's are Gold, Thanks heaps.
i'll just go without the light at first and get my head arround the light,
i see your point with my idea, no real use there.
will let you know as i go,
cheers, rock

Quote:

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Originally Posted by rockndot

thanks for the follow up guys , great reading/info.
will remove the said controll unit today and have a gander Rodney.
p.s. i just got your tag.....der....i'm slow i know.

p.s.s whats the go uploading photos ?
screen ask me for a url ..?

cheers rock

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Mate, just join Photo bucket, it's free. http://photobucket.com/
First instal pics on computer, then go to photobucket.
Click upload, then browse photos, find your photo, double left click on photo, then once photo is on photobucket, click bottom panel on pic, it will say copied.
Click edit at top again, box will open, click copy.
Go to forum, start typing something, hit enter for next line, go to edit again, click, box will open click paste.
With a bit of luck, we may get some pics.
Cheers, the ferret.

Quote:

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Originally Posted by Yendor

The connector that plugs into the glow plug module should be a 10 pin connector, 5 pins on the top and 5 pins on the bottom.

With the top row of pins there should be only 2 pins that are being used, 1 pin should have a brown wire in it (this is the ignition feed from the 15 amp fuse you keep blowing) and the other wire colour should be Green wire with a White trace, (this wire connects to the glow plug relay).

All you need to do is connect two wires, one to the brown wire and one to the Green with a White trace and then connect the other end of the wires to your momentary push button switch.

To test, connect your test light or voltmeter onto one of the glow plugs or busbar, turn ignition on and then push the switch in.

The test light or voltmeter should now light up or show about 12 volts.

I would use a good quality momentary push button switch, the last thing you would want is the contacts in the switch to short together causing the glow plugs to stay on.

If you intend on having this permanently setup with the switch, we can add a warning light into the circuit.

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Yendor Thanks again for your info ,
I finaly got arround to needing the old girl again, (tow the roller over the driveway)
So, as i havn't got that switch/button yet, i have just jumperwired it direct in the plug,
turned on ign, heard the glow relay click, 10 sec wait and it hit up straight away,
Very happy chappy, now to finish the job properly,
Just a update on this thread, will post some pics later with the roller and at work, today tomorrow.

I just did the same thing mate. Too many beers haha

Im going to try this today, fingers crossed its the solution