I've got a TH Advance Wagon 03/99. The right rear wheel ABS sensor is faulty (open circuit). Also confirmed by MUT. My mechanic has had four attempts to get a replacement part but all have been incorrect when received. They don't fit.

The ABS sensor on my wagon is mostly metal with a one lug fixing hole. Towards the tip of the sensor the diameter of the metal part reduces and this part is magnetic.

The cable comes out of the back of the sensor and immediately goes through a 90 deg angle so it is on the opposite side of the sensor to the lug. The other end of the cable has a plug with two female connectors

The official Mits svce manual shows the sensor I have on the wagon. The sedan has a different style of sensor.

The mechanic tried three aftermarket suppliers and one wrecker and they all said the wagon is the same as the sedan. No it isn't!

Of course the ABS light is on so it will fail its rego inspection and become $2,000 worth of scrap metal and plastic, which is a pity as it has only done 115,000 kms

Anyone got any ideas as to where I can get one? New or used - I'm getting desperate.

1 Try a Mits dealer
2 Try Mitsfix - a sponsor of this forum
3 Try Injectronics P/L 3 Becon St Hallam Vic (03) 8792 6999. I used them years ago for a part. Don't know if they go into brake bits.
4 If you can get the part number, try Amayama.com. If you contract them directly and give them the part you need, they may be able to get it in for you.

The best way would be using the vin through a dealer but for fun here's an example of RR I found

MR128681
http://images.gasgoo.com/MiMgIzczNDgwMDMwMA--/auto-part-mitsubishi-abs-sensor-mr128681.jpg

fitted to US Diamante Sedans(we exported) up to 2001, Also all Sigma/magna (sedans) we exported to the general market up to 1999.

you could pull the old one out, take an image and post it up.

Now I was going to suggest you use supercheaps part finder, the image there looks the same but I just had a minor stroke seeing $550. makes the $220 on Amayama giveaway but I always check local dealers too just in case

Dorman in the US make an aftermarket, awfully cheap for about $95 shipped at Rock Auto going on the number I listed

Can't condone it if you are selling a car as it is potentially at worst killing someone - but if you are driving it and know of the potential fault - take the ABS bulb out to get the roadworthy and then fix the problem properly - TH ABS is quite early - maybe search for verada KH parts?

Can't condone it if you are selling a car as it is potentially at worst killing someone - but if you are driving it and know of the potential fault - take the ABS bulb out to get the roadworthy and then fix the problem properly - TH ABS is quite early - maybe search for verada KH parts?

You're right. I have to fix it or write it off. Thanks for the tip re verada KH

TW2005

The image you posted is close but still not right.

if I could figure how to post images, I'd do it. At the moment the bottom of the page says "You may not post attachments" presumably this means images.

Can anyone tell me how to post images? When I try to insert an image, it asks me for a URL.

PLEASE IGNORE

E:/TH Magna Wagon right rear ABS sensor comp

you need to host the image online, then put the url in your message.

Try www.imgur.com
That is a simple and free image hosting site.

Click the link at the top of the page to upload an image, choose to browse the file from your computer, then start the upload.
once its loaded, either copy the share link into the box that asks for the url in the post, or just copy the whole BBCode (forums) link a bit futher down, the one with the [img] tag on either end straight into your post

well you best ring a dealer give the VIN and get their number I think, only way to get this right.

Sorry I just rechecked and looks like I selected the wrong vehicle ,must have gone into the jap sedans by mistake. just found MR901078 for the wagon 1997-98 in japan $380 ex Japan

dealer job or find a working used one.

PLEASE IGNORE

E:/TH Magna Wagon right rear ABS sensor comp


you need to host the image online, then put the url in your message.

Try www.imgur.com
That is a simple and free image hosting site.

Click the link at the top of the page to upload an image, choose to browse the file from your computer, then start the upload.
once its loaded, either copy the share link into the box that asks for the url in the post, or just copy the whole BBCode (forums) link a bit futher down, the one with the [img] tag on either end straight into your post


thanks. I'll try that tomorrow

Photos of ABS sensor and plug. Plus enlargement of official Mits diagram.

http://i.imgur.com/AlytE5tl.jpg

http://i.imgur.com/EeXqNwrl.jpg

http://i.imgur.com/g93lbQAl.jpg

Is this it?

http://www.rockauto.com/info/42/970-538-007__ra_p.jpg

Finally managed to link to images. Yay

Prowler Almost. I managed to link my images so you should be able to see my photos now.

Hi Kingsley, been watching your thread.
Seems the part on your car doesnt fit mechanically. Is it the connector doesnt fit or the sensor itself?
With the original, you say it is open circuit. Is the open circuit due to a dodgy connector or is the coil itself open circuit; in other words, is the problem repairable?
Often, there is a failure of the connections made inside the sensor where the fine wires of the coil winding are joined to the leadout wires. Looking a the picture suggests the unit can be dis-assembled.
The principle of these things is the magnetic field generated by the magnet is caused to vary in strength by the field passing through different amounts of iron as the wheel rotates. The principle is known as 'Variable Reluctance sensing'. It is a general principle applied to ABS systems. Most cars have similar Variable Reluctance pickups, so providing it fits mechanically and can be made to connect to the wiring harness, the ABS system should work. There is no 'polarity of the wires' question with this sensing system.
Not sure if any of this helps, but in view of your apparent difficulty in obtaining a replacement, a repair or substitution may be the way to go.

Hi Kingsley, been watching your thread.
Seems the part on your car doesnt fit mechanically. Is it the connector doesnt fit or the sensor itself?
With the original, you say it is open circuit. Is the open circuit due to a dodgy connector or is the coil itself open circuit; in other words, is the problem repairable?
Often, there is a failure of the connections made inside the sensor where the fine wires of the coil winding are joined to the leadout wires. Looking a the picture suggests the unit can be dis-assembled.
The principle of these things is the magnetic field generated by the magnet is caused to vary in strength by the field passing through different amounts of iron as the wheel rotates. The principle is known as 'Variable Reluctance sensing'. It is a general principle applied to ABS systems. Most cars have similar Variable Reluctance pickups, so providing it fits mechanically and can be made to connect to the wiring harness, the ABS system should work. There is no 'polarity of the wires' question with this sensing system.
Not sure if any of this helps, but in view of your apparent difficulty in obtaining a replacement, a repair or substitution may be the way to go.

Hi rumpfy, Thanks for your thoughts.

The photos I posted are of the faulty sensor that came out of my Magna. It is exactly as shown in the enlargement of Mitsubishi's service manual. Despite this, I can't get a direct replacement for it. Neither can my mechanic who has been sent the sensor that fits the sedan four times. The wagon sensor is not the same as the one for the sensor in the sedan.

To try and isolate the fault I cut away the insulation on the cable near to the sensor without breaking the conductors. Measurement of the resistance at that point showed an open circuit rather than the quoted resistance of around 2k ohms. So the fault, as you suggested, probably is the coil itself or the connections between the cable and the coil. Mind you, the wire must be very fine to get a resistance of 2k in a coil of that size.

I've had some experience with repair of small signal transformers in valve radios so at this point in time, I don't really have much to lose by cutting off the rubber boot and seeing what I find.

Thanks, Kingsley

OK. So what does it mean "It doesnt fit".
Is it too big/ too small/ bolt hole doesnt line up/conector is wrong/cable length is wrong/???

OK. So what does it mean "It doesnt fit".
Is it too big/ too small/ bolt hole doesnt line up/conector is wrong/cable length is wrong/???

http://i.imgur.com/Qgaz6e3l.jpg

Sedan at top, wagon at bottom of page. Note my Advance has disc brakes.

Differences are:

On the sedan the cable comes out of sensor at a different angle and hence fouls other parts.
On sedan, sensor fits into side of wheel assy. On the wagon it comes in from the back.
On sedan the pick-up part is all of same diameter. On the wagon there are two different diameters.
Toothed wheels are of different sizes.
Although not shown on the diagram, the connectors are different.

Hope that helps to clarify the problems I'm having.

Thats a big list of serious differences. It is almost saying that your rear end is totally different. Given that Mits wouldn't be making the sensor and that it would be part of the ABS, is it possible you have a rear end design from a later model? Have you thought to contact Mits fix Mal.
The fact that your car has discs and the pics show drums, that to me is enough to suggest your car is not a TJ model rear end. My TW has rear discs so maybe your bus was produced in some intermediate parts changeover in the factory. But the sensors in my TW are different to yours. they have a LHS and a RHS type.
The position of the bolt hole is different between the sedan and the wagon according to the sketch. On the wagon, the bolt hole is opposite the position of the leadout cable so the same sensor can be used on the LHS and the RHS. With the sedan, there is a LHS sensor and a RHS sensor because the bolt hole is at right angles to the leadout cable. Prowlers post #13 looks like the one?
Probably not much help. When I was a kid buying Vauxhall parts, I spent lots of time buying and having to return the wrong part even though the book said .... . Looks like not much has changed in the last 50 years.

The fact that your car has discs and the pics show drums, that to me is enough to suggest your car is not a TJ model rear end.

I believe the "drums" you are referring to are actually the handbrake shoes.

The discs, not shown in the image, fit on over the hubs(item #5 in lower) and are not shown in this instance for clarity.

I believe the "drums" you are referring to are actually the handbrake shoes.

The discs, not shown in the image, fit on over the hubs(item #5 in lower) and are not shown in this instance for clarity.

Thanks, I hadn't thought about that. Just took one look at them and thought "drums". I took a step backwards when a mate said that his new Honda Jazz had drum brakes on the back !

I had a look at Prowler's #13 and its like it but with the sensor metal part being so different I'll run into problems.
On the TH wagon I have, only the smaller part of the metal end is magnetic. The rest is not. The smaller and larger diameter metal parts of the sensor are separated by a non-magnetic sleeve (phosphor-bronze?)
The sensor tips are oriented to come close to the toothed wheel from different directions. On my magna wagon the sensor meets the wheel at right angles with an overlap. On the sedan, and on "Prowlers sensor" the tip will be in-line with the toothed wheel. The sensors that were supplied to the mechanic were of a totally plastic construction with the only part of the sensor being a small strip set into the plastic case.
Aftermarket suppliers don't list a separate part for the wagon, implying they're the same as the sedan. The spare part for my wagon seems to have dropped off the list. There was even some confusion in Mitsubishi themselves with a sensor (don't know which one) listed as obsolete.

I might actually be getting somewhere. Spoke to a large dealer in Adelaide who could access Mitsubishi's spare parts database which had a replacement part for my sensor. There were two in Australia, Busselton WA and Traralgon VIC. So between myself, Mitsubishi Traralgon, my mechanic, emailed photos and digital verniers we decided it was worth a go. At the moment it's in the Express Post somewhere between Traralgon and Sydney. Fingers crossed.

Finally got the right ABS sensor:
Mitsubishi p/n MR922544. for TH Magna wagon right rear. manf. 03/99 VIN 6MMTH8A46XT00491
Genuine Mitsubishi part from dealer. $196 inc GST and delivery.

http://i.imgur.com/b5wGFp9l.jpg

Wow, and if you had contacted me I would have sold you a tested used one for a WAGON (as yes Sedan are totally different) for $55 plus post, have a box full of them here

Pity I did not see this sooner however many did suggest you call me, oh well

I did check your on-line store but there weren't any ABS sensors listed. That's as far as I got. I'll know to give you a ring next time!
Mitsubishi Aust only show one other genuine part in AU
Cheers, Jim