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Charge Relay Location 1996 Isuzu Wizard MU

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Charge Relay Location 1996 Isuzu Wizard MU

Postby jsaurat1 » Sun Mar 09, 2014 1:09 pm

Hi there,
Got my 1996 Isuzu Wizard MU 3.1 Turbo Diesel pretty wet the other day and i think i have blown the charge relay.
-Lights on dash now showing: T-belt, Battery and 4wd.
-Battery has slowly run out of charge with my gauge dropping from just below 12 to 8V driving home last night with lights on (45min drive).
-Air con/Air fan not working.

All this would suggest Charge relay from the posts i have read, only issue is i cannot find a blue or brown charge relay in the engine bay fuse box.
I have attached an image of the fuse box in the wizard is it one of these?

Thanks for your help!

Jean
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby nb422 » Sun Mar 09, 2014 2:31 pm

Just curious, are you sure its the relay and not actually the alternator itself?
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby geeves » Sun Mar 09, 2014 4:27 pm

first its more likly an alternator problem esspecially if it was muddy water. The charge relay should be the square relay at the bottom of the second to right row and probably coloured brown (it might be blue)
Im confused by the wire into the position of relay EB27 My wizard has a relay here and no extra wire.
Sanding your knuckles before starting work can help. That way you cant skin them
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby topgun94 » Sun Mar 09, 2014 10:44 pm

That wire looks like a previous home job. The other relay pins can be seen.
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby jsaurat1 » Mon Mar 10, 2014 11:31 am

the wire mentioned goes into the relay spot labeled .....st out (EB27)......
i found a translated fuse cover here viewtopic.php?f=24&t=4267
this wire was already here when i bought it and im guessing its something to do with the anoying alarm that has been installed.


"first its more likly an alternator problem esspecially if it was muddy water. The charge relay should be the square relay at the bottom of the second to right row and probably coloured brown (it might be blue)
Im confused by the wire into the position of relay EB27 My wizard has a relay here and no extra wire."

it was fresh water but will test alternator when i get battery back off the charger, so the relay you are saying is the charge relay should be EB22 (heater)?

Thanks for your reply.
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby geeves » Mon Mar 10, 2014 3:03 pm

fuse2.jpg

fuse1.jpg


Maybe eb22 isnt the heater. A test proves the brown relay is the charge relay Unplug and the lights stay on

Why does your relay in the same spot look black? Black relays are normal relays blue and brown voltage sensing
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby jsaurat1 » Mon Mar 10, 2014 6:36 pm

Thank you very much for your help! I have a brown relay on its way to replace the black relay that was in the eb22 spot fingers crossed this sorts things out! thanks again for the image.
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby MUVIT » Wed Mar 19, 2014 2:37 pm

where do people get replacement charge relays from?
I ordered 2 for $100 aus before i went on holidays in feb . It came from the UK & wont fit a 96 wizard or MU. It has 5 pins but they are positioned wrong for this vehicle.
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby MUVIT » Wed Mar 19, 2014 2:48 pm

then i finally received the 1 i orderd on the 4th of march today & its the same the other two that wont fit. I ordered it through holden spare parts in darwin. They only have 1 listed for jackaroo 4jg2 engine & it doesnt fit.
It cost $100 for 1. & because i didnt order it with a vin number i cant exchange it or refund. Waste of time & money

part numbered
8-94232-225-0
MR5A-211 12V
31115V JIDECO
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby geeves » Wed Mar 19, 2014 5:05 pm

you need the later brown one.
Sanding your knuckles before starting work can help. That way you cant skin them
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby MUVIT » Wed Mar 19, 2014 6:05 pm

is the brown 1 you talk of the same as 2.8td holden rodeo. Holden spare parts in darwin dont have anything on the shelf for rodeo or jackaroo. So id like to know for sure before throwing annother hundred into the gutter.
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby tonyking » Thu Mar 20, 2014 5:18 pm

I have the exact same problem with my 96 wizard! Did u work out wat the problem was?? Im stumped!!
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby 96wizard » Fri Mar 21, 2014 10:48 am

Hi all, here are some photos of my 96 Wizard Fuse/Relay Box and some drawings of what all the fuses and relays are for. Cheers.
The 2 relays that missing in the above picture appear to be EB27 "Quick Warming" (whatever that is) and EB21 "Fog lamp"
21032014.jpg
21032014(001).jpg
21032014(002).jpg
21032014(003).jpg
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby MUVIT » Fri Mar 21, 2014 1:21 pm

you beauty. Admin should make it a sticky.
Is the a relay for air conditioning? & the glow plug relay is hiden behind the driver kick panel with a couple of other U.A.R"s (unidentified asian relays)
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby geeves » Fri Mar 21, 2014 1:37 pm

just a thought. Could a auto sparky rewire the box to take a blue relay. With carefull note of the fuse diagrame you could make a conversion lead with crimp spade and sockets
Sanding your knuckles before starting work can help. That way you cant skin them
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby 96wizard » Fri Mar 21, 2014 10:10 pm

geeves wrote:just a thought. Could a auto sparky rewire the box to take a blue relay. With carefull note of the fuse diagrame you could make a conversion lead with crimp spade and sockets

You could easily make a conversion lead that has spades on one end that plug in where the brown relay would normally go and female spade connectors on the other end to plug onto a blue relay. I assume that the later 'Blue' ones had their pin locations changed to stop people plugging in normal relays.

jsaurat1 wrote:Thank you very much for your help! I have a brown relay on its way to replace the black relay that was in the eb22 spot fingers crossed this sorts things out! thanks again for the image.


Sorry to dampen your enthusiasm but I doubt that getting the correct 'Brown' relay will fix your charging problems. Even with no relay plugged in, the alternator should start charging once the engine revs are above 2500 - 3000 rpm. The alternators on these cars have internal regulators and although the Charge Relay does send 12V to the internal regulator to give it an initial kick, the relay is mainly there to operate the charge light and stop the Heater/AC system from operating until the engine is running. At a guess, I'd say the internal reg has failed which will most likely mean a new alternator. I had to replace mine late last year and I had bought one a few months earlier from Nationwide Auto Parts via their ebay shop "autocoolingparts" for $288.77 including postage. They do have their own website that you can buy from directly. It's not a high Amp unit so if you're running a lot of spotlights you may need one of the more expensive ones.
Cheers.
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby geeves » Sat Mar 22, 2014 5:57 am

Most auto sparkys will test the alternator in place for next to nothing esspecially if they think they will be selling and fitting one for you. For the record Auto sparky should change one of these in under 2 hours Anything more and hes ripping you off
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby MUVIT » Sat Mar 22, 2014 7:56 am

geeves wrote:just a thought. Could a auto sparky rewire the box to take a blue relay. With carefull note of the fuse diagrame you could make a conversion lead with crimp spade and sockets


that could be plan B.
Plan A is to buy a 'new' brown charge relay before i lose my sanity. The mrs wizard is the new engine newt week.
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby MUVIT » Thu Dec 18, 2014 9:25 am

update, i hooked the blue charge relay quite a while ago using some wire, connector spades & a crimper.
The charging system appears to be fine, but i have no power to the A/C Climate control panel for vent changing & fan. All that works on the pannelis the backing light when you turn the headlight switch.

I cant seem to find any blown fuses or relay's which is very frustrating.
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Re: Charge Relay Location 1996 Isuzu Wizard MU

Postby Captcol » Mon Jul 11, 2016 8:30 pm

Reviving an old thread but I have the same situation as the above post, first intermittent power loss to air con and now complete loss apart from lights. Any ideas? did the above resolve the issue, have checked relays in kick panel, will now check the engine bay fuse box thanks to this thread.
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