Speedometer, Tachometer, Temp Guage - Page 2 - Nissan Forum
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post #16 of 27 Old Jun 2nd, 2005, 11:35 PM
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I had my dash plate unit replaced about two months ago. I haven't had any problems with it since then. The unit was $73.81, but if you have your dealer install it, it will cost more than that. However, it will be worth it.

Last edited by shhaz87; Jun 2nd, 2005 at 11:39 PM.
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post #17 of 27 Old Jun 7th, 2005, 10:18 PM
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Great post, and great site.
Ive been having the quages in my Pathfinder going on and off for over two years now. The dealer hasnt been been able to fix it yet. Replaced a circuit board before and that didnt solve it. They now say the speedo head is bad. Any one have that replaced yet? Not sure I want to give them anymore $$$ to try and fix this.


Thanks
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post #18 of 27 Old Jun 8th, 2005, 11:44 AM
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Quote:
Originally Posted by skinnyd
Great post, and great site.
Ive been having the quages in my Pathfinder going on and off for over two years now. The dealer hasnt been been able to fix it yet. Replaced a circuit board before and that didnt solve it. They now say the speedo head is bad. Any one have that replaced yet? Not sure I want to give them anymore $$$ to try and fix this.


Thanks
Thank you for posting this to help others avoid paying out more money. My mechanic said that it was probably the circuit board too.
The only advantage to this problem is that I have probably shaved a few hundred miles off of my speedometer! Someone that I know suggested that we could report this as a potential odometer fraud, which is illegal.
I just wish that they would figure this out and call a recall on the part that is causing all the problems.
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post #19 of 27 Old Jun 8th, 2005, 12:29 PM
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The odometer in my situation still accrues miles it just doesnt display when the guages stop working. I have to try to talk to the tech today to find out if the speedo head can effect the rest of the guages. I dont want to spend anymore money fixing this thing unless they tell me this is whats wrong. Seems like others in this thread have had similar problems but have different fixes.
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post #20 of 27 Old Jun 9th, 2005, 10:06 AM
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Intermixing terminology?

Which circuit board? Are you talking about the car's computer? I am guessing that "speedo head" means the actual guage. Is that correct? The cluster unit, which includes the speedometer, odometer, and tachometer, comes as one piece and can be removed easily. I dissasembled mine as far as i felt comfortable, but i didn't see any obvious problems with it. It did, however, work properly for two days after i reinstalled it. It then went back to being intermittent.
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post #21 of 27 Old Jun 9th, 2005, 01:34 PM
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Not real sure what circuitboard they replaced before. I think the part was only $15 didnt fix anything anyway. I havent been able to get them to call me back about what they found when it was in the shop earlier this week. Im not to confident that they actually found the problem. With the gauges only going out intermittently I dont have faith they can really diagnose the problem unless its not working at the time. Not sure what the speedo head does. Im trying to talk to the tech to confirm that if it was malfunctioning it would effect the rest of the guages. This has been ongoing for almost 3 years now.
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post #22 of 27 Old Jun 15th, 2005, 07:04 PM
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well if all else fails, guess you could always go aftermarket and design your own instrument cluster. Do a little custom work and tap into the existing wire harness.

I like work, it fills up the days between weekends...
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post #23 of 27 Old Oct 13th, 2005, 07:55 PM
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Has anybody found a solution to the intermitant instrument cluster problem.
I had the speedo head replaced 3 months ago on my 2000 Altima. The cluster worked fine until today. Now it seems to go blank after driving about 20 minutes or so.
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post #24 of 27 Old Oct 14th, 2005, 11:24 PM
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Sorry, I have not had it fixed, because I can't get a clear answer on what to fix. It hasn't happened for a few months, but I really haven't done as much long distance driving as I used to.
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post #25 of 27 Old May 22nd, 2006, 04:53 PM
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My 2000 altima just started doing the same thing 2 or 3 days ago. Intermittently, the guages just drop to nothing-speedo, tach, temp, and fuel. The ses light has also come on throwing a p0500 code which is malfunctioning speed sensor.
all other lights on cluster work, inlcuding the backlighting for the guages.
Anyone had any luck??

Last edited by vpstang; May 22nd, 2006 at 05:01 PM.
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post #26 of 27 Old May 23rd, 2006, 12:05 PM
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Hi vpstang,

Got your PM about this problem. It is an old thread but seems like the problems remains for a lot of people.

I actually own a '94 Altima, but I can interpret the electronic diagram for the 2000 Altima as it relates to this problem.

First off, the 2000 Altima has integrated meters and odo/trip meter in a circuit board known as the Unified Meter Control Unit (UMCU). This unit controls the speedometer, tachometer, fuel gauge, and water temperature gauge. It also receives the vehicle speed via the Vehicle Speed Sensor (VSS) and sends "a copy" of it up to the car's computer, the auto transmission controller, and the cruise control controller.

Now you mentioned that the meters suddenly drops out of action instead of it gradually dropping out. This is 90% indicative of either a power or ground problem. And since this happens intermittently it sugguests a problematic terminal connection for the power or ground somewhere that feeds the UMCU. Intermittents are not easy to locate because you have to wait for the item to fail. That is why it is not easy for anyone to locate. Some techs try wiggling the wires or using cold blast spray and it sometimes helps troubleshoot the problem. Another thing I would recommend it to loosen and retighten all the screws on the backside of the instrument cluster. Those screws hold down and also provides electricity for the various electrical components.

The main electrical wires for the UMCU that I would suspect would be the Brown/White, Red/Black, and Black wiring to the UMCU.

The P0500 code is probably a result of the problem stated above. If you think a sensor is causing the problem then try disconnecting it and see if all the meters drops out. We are talking about the sensor for the thermal transmitter, fuel level, VSS, and tach.

One last thing I'd like to include is that you can do a diagnostic test for the UMCU. It goes like this,

Meter Gauge and Odo/Trip Diagnostics
------------------------------------------------------

1. Turn the ignition key to ON (don't start the engine).
2. Change the odo/trip meter switch to "Trip A"
3. Turn the ignition key to OFF.
4. Push in and hold the odo/trip meter switch.
5. Turn the ignition key to ON (don't start the engine).
6. Release the odo/trip meter switch after one (1) second.
7. Push the odo/trip meter switch in and out three (3) times within five (5) seconds.
Note: All the digital LED segments should turn ON.
8. Push and hold in the odo/trip meter switch for about 15 seconds.
Note: ALL the meter gauges should start to move and hold steady around an imaginary horizontal centerline of the meters.

Good luck to all.
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post #27 of 27 Old May 23rd, 2006, 09:55 PM
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Unhappy check engine light, can't pass smog!

Today I took my 2000 Nissan Sentra to be smogged, and first disconnected the battery to turn off the check engine light that keeps turning on when the car is not busy turning off all of the gauges.

Needless to say, I did not pass smog. The emissions were fine, but the functional check failed.

Does anyone know how to fix this? I'm sure it's related to the same problems.
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