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ub3 speedo problem


stockgp

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my speedo and high beam indicators are not working on my ub3. the tach works fine and everything esle seems to function correctly. i don't think i got any wires crossed during the install. i know the high beam wire is getting voltage when the high beams are on, and it's in the right pin slot.

 

i don't imagine individual things would go bad like that, but what do i know. also, i don't remember the car that i got the ub3 from (i got the ub3 like 4 years ago) so i don't recall if it had hud or not. if this was a ub3 hud, would the speedo section be blank? mine just shows a zero no matter how fast i am going. although, it does work properly during bulb test. the vss is plugged in. how could i check if the cluster is getting a signal from the pcm or not? and anyone have any ideas about the high beam indicator?

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When I first installed mine I accidentally wired up the low coolant indicator wire to the speedo wire on the ub3. On mine I had two solid green wires and none that were green with a white stripe. Also when the ub3 is powered up, make and break a connection to ground a couple of times really fast on the speedo wire and see if the mph will jump up.

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The high beam indicator should light up during the bulb check, does it?

both the speedo bar graph and the high beam indicator power up during bulb test.

 

When I first installed mine I accidentally wired up the low coolant indicator wire to the speedo wire on the ub3. On mine I had two solid green wires and none that were green with a white stripe. Also when the ub3 is powered up, make and break a connection to ground a couple of times really fast on the speedo wire and see if the mph will jump up.

 

i don't get what you mean. you mean like stick a pin in with the speedo wire on the plug and ground it a bunch of times?

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i don't get what you mean. you mean like stick a pin in with the speedo wire on the plug and ground it a bunch of times?

 

Yeah do just that. It is something like an average of 4000 pulses in a minute to get 60mph but I was actually able to get the thing to shoot up to like 120 for a split second. Or you could try a setup like pixel used when he attempted to roll the odometer over, using his computer and sine wave software... his setup is a good idea and works well. However if all you want to do is test the thing making a quick groud connection quickly should make the speedo jump.

 

http://www.w-body.com/forum/viewtopic.php?t=28311

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