Speedo stopped working

[jay see]

Hi all.

As the title says.

I'm at a lost as where to start. Only thing I can think of is the gear, that's if these have one.

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[Hodge]

Check speedo gear / sensor on transfer case. Easiest to start with. Takes 5 minutes.

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[jay see]

Thanks Hodge. That's the starting point...

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[mudski]

Yeah remove the sensor and see if the teeth on the gear are stripped. If you have a black gear, I have a spare one here you can have. Nissan have used different colour gears which denote how many teeth on the gear. They've have done something smart for a change....

[mudski]

Or shoot me your VIN. I can see what gear it is you have. But removing the sensor can literally be done in a single breath. Its that quick and simple.

[Hodge]

Or check my recent Speedo pinion swap.

http://www.nissanpatrol.com.au/forums/showthread.php?p=772895

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[mudski]

Lol. I just realised. John's GU is auto. Some of the auto models use a different speedo driven gear setup to the manual trans.

[jay see]

So I'll go by Hodge link and see where that get me.

Hodge I can't remember you manual or auto.
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[mudski]

So I'll go by Hodge link and see where that get me.

Hodge I can't remember you manual or auto.
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His is manual mate. The physical setup is the same, or very similar between the manual and auto speed sensors, its more so the shape and size of the gear. I do know that some models use the same type of gear as the manual models though. But never figured out which ones it was. Ge me your VIN and I can find out.

[jay see]

His is manual mate. The physical setup is the same, or very similar between the manual and auto speed sensors, its more so the shape and size of the gear. I do know that some models use the same type of gear as the manual models though. But never figured out which ones it was. Ge me your VIN and I can find out.Cheers Mark.

I'm back at the hospital getting this wirst sorted out. I send it to you later, looks like I'm going to be here for a while..

I don't even know if the gear is the problem.

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[mudski]

Cheers Mark.

I'm back at the hospital getting this wirst sorted out. I send it to you later, looks like I'm going to be here for a while..

I don't even know if the gear is the problem.

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Hope everything is ok! Looking at the gear and the the loom connecting to it would be the first port of call anyway mate.

[jay see]

Hope everything is ok! Looking at the gear and the the loom connecting to it would be the first port of call anyway mate.Yeah, small break. Crap timing tho.

Vin
JN1TBSY61A0101329

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[mudski]

Yeah, small break. Crap timing tho.

Vin
JN1TBSY61A0101329

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Ok. Its telling me you could either have a 15 or 16 tooth gear. Brown or yellow. 32743-VB015 or 32743-VB016. Atleast you have the common and cheap speedo gear.

Bugger about the wrist mate.

[jay see]

Ok. Its telling me you could either have a 15 or 16 tooth gear. Brown or yellow. 32743-VB015 or 32743-VB016. Atleast you have the common and cheap speedo gear.

Bugger about the wrist mate.Thanks mate.

I'll see if I can get under it tommorow.

Meant to start painting, then start collecting our stuff which is stored at 3 different places and move in. Fun times.

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[Cuppa]

Assuming you will have a similar arrangement to on my car.....

Check the wiring & the connector near to where they go into the rear of the gearbox. That was where the problem was with mine. I couldn’t get the connector apart so cut it out & rejoined the two wires using spade connectors. Speedo is once again working reliably - even agrees with the gps!

Prior to fixing it the speedo sometimes worked ok, sometimes not at all & sometimes the needle bounced around erratically on the dial.

[jay see]

Assuming you will have a similar arrangement to on my car.....

Check the wiring & the connector near to where they go into the rear of the gearbox. That was where the problem was with mine. I couldn’t get the connector apart so cut it out & rejoined the two wires using spade connectors. Speedo is once again working reliably - even agrees with the gps!

Prior to fixing it the speedo sometimes worked ok, sometimes not at all & sometimes the needle bounced around erratically on the dial.Cheers Cuppa

May not be the same problem. Mine just stopped working, everything speedo, odometer, trip just stopped and hasn't changed. Been about 2 weeks now.

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[Cuppa]

Do you mean the trip & odo stopped counting or that they don’t even illuminate? If you still see the numbers, but they just don’t increase as you drive, that is what happened on mine whilst the speedo wasn’t working due to the poor wire connection at the rear of the gearbox. If the numbers don’t illuminate at all then you I’d suspect you have an electrical issue behind the dash.

[jay see]

Stopped counting.
Will see what I find tommorow.

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[Cuppa]

Stopped counting.


Far better scenario than having to dismantle the dash & play with circuit boards I’d reckon. Either wiring or the drive. I'd guess that were it a worn drive gear you would almost certainly have seen some inaccurate or intermittent speedo activity before it stopped working altogether. I’m not sure what the drive itself looks like, but it’s not one which turns a speedo cable, just generates a variable electrical signal via two thin wires. Good luck, & be prepared to wait rather than buggering up that wrist again!