GM Cluster Troubleshooting Guide 99-02
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- čas přidán 2. 07. 2024
- Complete troubleshooting guide going over all the common problems in the 1999 2000 2001 & 2002 Full Size GM Clusters found in Silverado Avalanche Tahoe Suburban Cadillac Escalade and GMC Denali
Covering how to repair intermittent power, missing functions like odometer & PRND321 VFD display , Batt warning indicator stuck on, gas gauge not working, low fuel indicator stuck on, twitchy bouncy gauges, odometer error, battery draw and eeprom issues. - Věda a technologie
For GM cluster repair service I can be reached at 1mr.repairman@gmail.com
Chevy tahoe 1999 I would like too update the light too LED lights & put in new stepp motor and fix what need's to be fix's on the speedo like too know how long is the wait going to be too fix it & how much $$$$$ as well I'm in Illinois if you can send me information where to mail it thank you
@@keithzeug1944 the lights are user serviceable. 99-02 use air core motors, they are discontinued.
Nice! I’m glad you offer the service. I’m gonna try an fix mine, myself. If I screw it up, I’m gonna send it to you ! 🤣😭
Im popping my PRND fuse , replaced ignition switch/module , by the key , replaced multi function switch , replaced the whole transmission that worked in my other truck , so i put it back in it . Still blows the stupid fuse , no tach , ni speedo , stuck in second ..im replacing the wire harness now to the transmission and doing a dash swap ,with a bunch of new wire harnesses, but my hopes ain't high ..could the cluster do that , blow the fuse for prnd ? 2000 gmc 3500 bucket truck ..5.7 4l80e 2wd
@@MikeSmith-nu9wtunplug the instrument cluster, if the fuse still blows with the instrument cluster disconnected, then this problem is not caused by the instrument cluster.
Thank you for this video! All my gauges went out a few weeks ago and I found your video and I tried the A8 ground and fixed my issue thank you so much!!!
Came here from 1ROAD. Subscribed immediately! I really look forward to studying this video, as the parking brake light is out on my 99 Suburban I/P.
You Dazzled me with this and your other videos. so INFORMATIVE and presented in a very easy to understand (and brief to the point) format. Thank You.
Glad to see you back at it again!. I still need to send my 02 cluster in😒
I really appreciate these videos! I'm learning a lot from your channel.
Good stuff Jeff, Thanks for putting that all together!
Glad your back at it I have a 99 cluster I need to send your way
I enjoy your vids. Your knowledge and skills are mad. Your presentation is clear and concise. The occasional cat visit a plus.
Thank you!
Thanks Jeff. That will come in very handy
My 03 chevy cluster is still working. Thanks for doing a great job! I told a few friends to look you up to fix theirs.
Thanks for the guide…..ground wire was what had mine down.
Awesome 👏🏼 😎 man. Thank you so much for making this one too !
Love the vids bro! you helped me out a lot
+1 request for an 03-06 ultimate troubleshooting guide! Just watched you probe the water damaged cluster a few vids back. would be great to know all the test points and expected voltages for novices like myself!
You rockstar☆☆☆☆☆
I su appreciate you, your time and knowledge
Great info. 👊🏼
This is THE video for these trucks and their gauge clusters
Awesome video. When I did my dads 03 Cluster I jumped through a few videos and got lots of crumbs of info. Good to see it compiled into a nice video. I assume you plan to do the newer styles next?
Thinking about it, although with 03-06 pretty much all issues are internal to the cluster, and not a vehicle issue.
Jeff, great tutorial. My cluster on my 99 Chevy Silverado battery indicator that comes on intermittently gives me a place to start.
More than likely that's not an issue with the cluster at all, but the small wire on the alternator.
Or it's just alternator failure.
Hi Jeff! Love the videos. What type of oil are you injecting into the air core gauges? Just a heavy motor oil? I have one guage that needs to be done and was just wondering. Big thanks and keep up the great videos!
jeffescorttlx; My name is Norm, I have been doing stepper motor and some minor repair for about 4 years now, this video is by far one of the most informative yet. If you ever put together a troubleshooting guide for sale Please Let me know I would like to be the first to get one. Thank you keep up the great videos.
Hi Norm! As of now I offer my information free of charge. I'm happy to help and glad to hear my video's are useful.
Hope to see another vid for the next gen clusters after the 02’s
That video would be much shorter. Basically any issues, yep the cluster needs to be rebuilt.
Great Vid Jeff, how about a similar video on 03-06 problems...
Yes popular request
Would it be possible to have you email me the pinout on how you got your bench harness set up? Ive tried multiple things to get the cluster to fully power up but I cannot seem to be able to figure out how to get the PRNDL/odo display to light up.
Hello.. I have a 2000 GMC Yukon 5.3 4x4 it's a great truck hasn't missed a beat.I was hoping you could take a look at the cluster and make sure everything's how it should be. Thank you
Is the instrument cluster having any issues?
Hey Jeff, where is the odometer info stored? In the VFD display board or the microprocessor board? Thanks for all you do!
In the eeprom next to the microprocessor.
You fought one problem. I seen a lot 99-02 cluster back lightning stop working including all all the dash buttons on the dash... I believe it’s the headlight switch because last 99-02 vehicle I worked on had this problem and there headlight switch was bad it wasn’t making connection inside no more, I usually just by pass this problem from the fuse box and all lightning works again but I believe by changing the headlight switch it will fix the problem
I cover that problem here (although it's the 03-06 in this video) czcams.com/video/2ZDvRImSO0E/video.html
The axillary ground wire worked for my needle gauges acting erratically/jumping. Thanks so much!!
On the abs/brake light coming on occasionally, do you find this to be a bad ground to the frame ?
I know there are many other issues ..
Thanks again for your help and enjoyable videos !! m.k.
The ABS module is known for having internal fractured solder joints causing intermittent issues.
@@jeffescortlx Thanks Jeff, your information has been great help ! m.k.
@@mikekeziah3064 Your welcome.
i just sent you a. video to your email about my cluster it shows exactly whats the issue
I sent a reply to your email.
Great videos Jeff. Thanks for taking the time to make them. My 01 message center is non op.. Everything else in the cluster works fine just a dark message center. Have you run across this problem?
Yes often. 99% of the time it's from someone trying to fix it.
@@jeffescortlx It just stopped working one day. Nothing else was affected. Does the display go bad? if so do you sell them? How would I determine if it's bad? thanks for any help.
@@Rockford180 odometer displays go out all the time in 99-02, that's what I briefly talked about in this video. But typically the message center does not go out on it's own under normal conditions.
Hi Jeff, I have a 1999 chevy silverodo when you turn switch on everything works great for a min. or so then the gas gauge and the temp and message center drop. i done the ground replacement but still having same issue .
Sounds like your loosing bus communication. The problem may or may not originate from the cluster.
I have something like the intermittent gauge issue, exept the engine light, volt and oil pressure are not affected. Everything else goes off like crazy, all warning lights are flashing and needles jump up and down. Happens after driving 30 min to an hour. Sometimes it goes back to normal after a couple minuttes and other times it goes on for hours, or until i stop the car for a couple min. Tried the ground wire fix and no luck. You have an idea what coult cause this?
Since the volt gauge is continuously working, that lets me know the ground and ignition wire is good. And since the RPM and mile per hour are cutting in and out along with the gauges that use the bus signal, that lets me know it's probably not the serial bus. So you probably have internal cluster issues, like fractured solder joints on the cluster PCB.
@jeffescortlx - Have you ever seen an 03 Gm Dash cluster cause inconsistent left turn signal?
No, the cluster doesn't control the blinkers. It's simply just an indicator to show you when there's power in the blinker circuit
GMC 2001 Yukon XL, Cluster light ABS Light and Brake Lights always stuck on and intermittent fade on the Odometer/PRND321 display. Reset the Fuse for ignition and for now the Odometer light is working without issue. The other two lights. Board issue or actually system issue that needs further investigation?
Your ABS/Brake light are probably on because your ABS module is bad. Common problem.
I don’t know if you’ll get this. Can you tell me which pins I need to power a 2000 Chevy 1500 cluster on my bench? Thanks.
If you Google it you'll find forums like this with wiring diagrams www.gmtruckclub.com/threads/2000-chevy-silverado-2500-6-0-4x4-insturment-cluster-looses-power.77609/
Ive got an 03 Yukon, the cluster acts the same as this does with a bad ground, would that also be an instance of a bad ground or an internal problem with the cluster?
Intermittent power on 2003 and newer is a cluster PCB issue and not the grounding problem like 03 and older.
Could you do a cluster from a 2005-2009 Pontiac Montana SV6? I know it controls the clicking sound for the signal lights. Mine is not working. I would love to know how to fix it. What chip is wrong?
Sorry I don't have that model here.
I need help I have 3 clusters and I used to power them with a 12v car battery and the wiring was all over the place and I think it fried the board bc now when I plug it into a truck only the velocímeter and the rpms read and the gas light is always on the other guages don’t even move
It will be hard for me to troubleshoot over the internet.
Hey Jeff, my 01' fuel gauge is way off, like pointed at the voltage gauge after a battery change, everything else works fine. Any clue on how I could fix it? Thanks
Does the fuel gauge needle still sweep when it's powered all the way down and then powered up?
What voltage is a9 supposed to be?
I find it very instructive. How can I send you the dash unit. I have 05 GMC Sierra with the common problem the shifter Indicator light or display does not work. Where can I find you? How can I contact you? Thanks
My contact information is in the top pinned comment. Just above your comment.
Have you seen where the fuel gauge reads backwards? E=F F=E only problem I have with my cluster. I have an 02 1500 Chevy Suburban. Thanks
No I have not. Sounds like the fuel sending unit is wired incorrectly.
Jeff, where did you get the cluster harness?
Either a junk yard, or some come with a pigtail when you buy a used cluster from eBay.
I am having the same intermittent cluster issue, however my voltage gauge still works, is that still going to be the A8 ground or another?
If the voltage gauge is holding steady while the cluster is intermittent it's probably an internal cluster issue.
Is it possible to fix a cluster bulb in the Stepper motor area of a 2005 Malibu max LT?
They are led’s pretty common repair, he has a video on it. Search his videos. Tiny leds though.
@@michaelbox7285 the one I have on my channel is a 08, but his 05 is a different revision. I think his might have small user serviceable bulbs on a socket, but I can't say for sure.
Good information i have a 2002 monte carlo the mileage and dive display come in and out sometime so i pulled out the cluster then went to the junkyard and pulled wires from another monte now sure what wire are positive and negative to power up the cluster can help pls. Thank
Bench testing station isn't necessary. Just reflow the 4 resistors that are tied into the VFD display hot wire circuit.
@@jeffescortlx like power it up see what lights are working i just don't know what wire are positive and negative to hook thanks
@@lupdogdog5371 if it has over 100k miles just replace all the backlighting lights. No need for a testing station for that.
Yes here what you are saying but if there is positive and negative on the light if new the power and negative to plug it in i can fix on the spot instead of solding all in taking in and out lf the vehicle plus the vehicle is about 10min away.
@@lupdogdog5371 the incandescent lamps used don't have a polarity.
My prob is my fuel,trans and motor Temps don't work. My old port don't work now and the box that's around the display don't show so I cant see what gear I'm in but I can see the gears. Then driving the rpm and speedometer will work then flicker but still works. Has abs light on everything else works fine
Chances are the cluster is just showing the symptoms of the vehicle not having bus communication but it's not necessarily the cause.
I have an 04 gm cluster that the blacklisting is out until I push on the top of the cluster everything else works fine I just can see how fast I'm driving at night I'm no stranger to soldering any ideas??
If it works when you put pressure on the connector than you have a fractured joint.
I have a chevy tahoe I'm looking to have my speedometer redone some lights are out how long is the wait to have it all done
The 99-02 GM clusters have user serviceable lights.
Do you have a video or reference guide to how to wire up the connector to bench test the cluster? I am trying to figure out what wire I need to connect to turn the cluster on with out using the vehicle power
I'm sorry but I do not have a video going over that. But with a Google search you should be able to find a wiring diagram.
@@jeffescortlx Ive scoured the webs for a wiring diagram. Any sources would be amazing
@@Dan-gj1hz www.justanswer.com/car/bszq0-need-wiring-schematic-2002-silverado-tahoe.html
@@jeffescortlx Thank you very much
waiting on GM 03-06 cluster guide..
Yes popular request coming someday.
I had new steppers and leds but then it was working but a wire touched and nothing works now except lights what would cause that is there a fuse are something I can solder off and on are diode
You must have a different cluster. The 99-02 full size GM clusters don't use stepper motors. They use air core motors.
Video of fixing first problem? Only confused on where to put ground.
A8 wire, it's black with a white stripe.
I have an 02 avalanche, the fuel gauge and coolant gauge ONLY WORK when I step on the brake. what exactly is going on?
I don't know. Brake light isn't wired into the cluster. Maybe you have a bad ground.
Hi there how much does it cost to have a cluster checked and air motors service and just replace anything that needs it??
My email is available in the top pinned comment if you want to reach me for a quote.
I know ur not gonna see this but I have a 2000 GMC and I have an issue with no odometer display. I saw ur video on how to fix it but I ended up putting in a new cluster and the issue is still there… but when it rains my cluster ends up working again showing the odometer and the gauges.
I’m not sure if you ever experienced this but plz help
I would start with the ground wire since it's the most common to fail. If the problem is still there check the ignition and battery power wires under load. You might be missing one.
I've been having issues with my 2000 Silverado cluster.
When I turn the truck off, take the key out, open and shut the door, once the dome light goes out, the high beam indicator and cruise control indicator both light up on the cluster and stay lit. It drains the battery. Also the D on the gear select is dimly lit, just barely able to make it out when it's dark.
Even if I take the key out and leave the door open, the lights will still come on. Everything on the cluster works fine and normal. I've sent the cluster out for refurbishment, still does it. I don't know if it's the cluster or something else shorting out waking the cluster up. I've replaced the multifunction switch with factory new, still does it.
Next I will put a refurbished BCM in. Maybe it's bad?? Idk.
Do you know what circumstance would cause these lights to come on and drain the battery? Radio off, security light off, just what I stated above.
I'm lost with this one, I have to remove and install the radio fuse everytime I park and drive the truck.
Did the place you sent the cluster to give you any useful troubleshooting or test result information?
Did you install a new ground wire yet?
Has any after market wiring been done to the truck? Like keyless entries, remote start or stereo system?
@@jeffescortlx No test info or troubleshooting from them. Haven't done the ground yet but definitely will. No aftermarket keyless entry or remote start.
I do have and aftermarket radio, but it turns off correctly when I open the door and doesn't turn on until I turn the key on. I also unplugged it completely with no change to the lights on the cluster.
I also have an amplifier and subs, but the amp turns off correctly when I turn the key off.
@@jonathanst89 did you explain the issue the cluster was having to the place you sent the cluster to?
@@jeffescortlx yeah, Originally I had put in an order for a refurbished cluster on Amazon but he couldn't get the mileage set right and said I could just send mine in to be refurbished, that's when I brought up the issue. they said they have never heard that issue before. that was that, it was still cheaper than buying another unit so I did it.
Any reason why cluster wont turn back on after installing led bulbs in a 99-02 cluster.. after installing them they never turned on. I put bsck the stock bulbs and didnt light up either. Thanks in advance💯
Blown fuse I suppose.
Would it work if I put an 02 Escalade cluster on a 03 Yukon please let me know or what I can do thanks
No. The 99-02 are not compatible with 03-06.
I do have one more question my htr a/c fuse doesn't work at all so I was wondering if there's anyway to buypass that fuse
Yes it can be bypassed/jumpered. Just make sure the new circuit is properly fused.
@@jeffescortlx I have a atc fuse panel but I can't seem to find any diagram showing what wires are for the htr ac fuse
Hey Bud, I have a 2000 gmc sierra 1500. I just replaced the stepper motor but my display says low fuel when it isn’t. Any idea or is it my damn sending unit. Thanks
For 2002 and older it's always a sending unit. Chevy didn't start to use defective stepper motors until 2003.
But the cluster doesn't trigger the low fuel light by the location of the needle. So even if you did have a bad aircore gauge motor, it's impossible for that to trigger the low fuel light. You have a bad sending unit, and or wiring to the sending unit.
Nevermind. Just saw probably sending unit cuz I cleaned the ground under the front driver wheel. Ugh. May as well replace the fuel pump too
@@jeffescortlx yeah it was stuck at half tank but low fuel light was fine. Low light didnt stay on until I replaced the fuel gauge motor.
@@TailEndCustoms the instrument cluster doesn't need or require the gauge motor for the low fuel indicator to function. There is no direct connection besides the data bus and the sending unit between the low fuel indicator and the motor that moves the gas gauge needle. They are otherwise independent of each other.
How about the lights on the 194 bulbs don’t work how are they powered
Dimmer/headlight switch.
Hi I have a 2002 Chevy silverado I replaced the cluster and it won't show mpr,rpms, or Andy displays besides the engine service soon when I turn the ignition key
Did the original one work better?
@@jeffescortlx no they both work the same and I installed a new ground wire
@@intovr2229you might be missing one of the power wires. Could just be a blown fuse. This cluster relies on multiple ignition circuits, not all of them are labeled in the fuse box as being for the instrument cluster. So it's best to just check all of the fuses, both under the hood and under the dashboard.
@@jeffescortlx ok I'll double check to make sure
Hey,can I get my gm computer PCM to control the hi-beams,Brake,ABS, Security lights or no?
I'd think so. It's all bus stuff.
Ok,thanks I finally got it to communicate, I will have to figure out how to get these lights to work I didn't know if it went through the BCM or PCM.
Hace you seen the trip counter not work not count the miles used?
What is the year/make/model of vehicle that this cluster is out of?
@@jeffescortlx 2000 model Silverado
@@BowtieClusters if the mile per hour and odometer are working correctly I would probably start by trying a different eerom.
01 cluster prnd an odo doesn’t light up message center doesn’t come an most warning lights not on besides for blinkers they work an gauges work
You might be missing one of the ignition circuits. Check your fuses, all of them. The ones under the hood and the ones under the dashboard.
I changed my back lights to LED. And now my fuel gauge is stuck on E with low fuel warning on. Gear selection highlighter not working.
But the passenger seatbelt, abs, Battery indicator, security light won’t go away.
I undid the harness made sure I didn’t bend any of the prongs. But no change.
Maybe I damaged the harness?
Post owner was smoker All the wires are nice yellow tan
Sounds like you're cluster lost serial bus communication with the rest of the truck.
@@jeffescortlx how does one fix that or do you have a video for this already?
@@rafaelzamora8803 did you do any other work or change anything else just before it stopped working?
@@jeffescortlx no only the led and bulbs holder/sockets. I did have to fangale the harness off so I could do so.
@@rafaelzamora8803 you could have damaged the plug solder joints if you used too much force and pressure on it.
Great video. TLDR of the video... about 80% of cluster issues with the 99-02 is not a cluster at all!
Basically yep. Well maybe 50-60%.
@@jeffescortlx see if your going to be showing printed papers on the channel you need to keep an eye out at your e recycler for an old dot matrix printer and bust out one of your vintage computers to print to it. I'm sure you got a commodore hiding somewhere.
@@FixedUntilBroken I could back up my BIN file collections on punch cards?
@@jeffescortlx store them on tapes with your vic 20
@@FixedUntilBroken if you need a copy you can build a terminal and dial in.
4:06 anyone know what fuse it is ? Having the same problem where my cluster only works when you press the trip button
I'm not sure what it's labeled as, but I'd recommend just taking a look at all the fuses both under the hood and under the dashboard.
Any idea what would cause the speedo, tach, and fuel gauge to no longer work all at the same time?
And when this happens the display continues to work?
@@jeffescortlx yes. Fully powered on, both screens are on and the 4 on the right are powered, fuel is stuck incorrect though and tach and speedo both died
@@jacobgreene9132 sorry I'm not exactly sure what's going on with out hands on.
@@jeffescortlx and it all happened at the same time. Makes me feel like it's chip related or on something on the main control board with all the chips
@@jacobgreene9132 but it doesn't make sense that only some analog and only some serial bus are acting up.
Is there a schematic available for these clusters?
Nope.
Where can I find the info to send a cluster in? Thanks
Top of the page that I'm holding in the video, and I've also pinned it to the top comment.
I have a 2000 Chevy silverado 1500 and the gas guage, trans temp, gear selector, mileage and the message center has a battery light on and they don’t work but everything else does how would I fix all of that
Sounds like you may need a new eeprom.
@@jeffescortlx what would I do to find that part and fix it
I also replaced the whole sending unit thought it would fix the gas gauge but it didn’t
@@isaacwoolf7594 no, your cluster can't communicate without a working eeprom. This time it's not a sensor issue.
@@jeffescortlx so could I put a different cluster in and they should work then
What if my gas gauge is pointed straight down and it goes on/ off while driving then throws battery and security light. Also oil is a bit shaky
The boot up test sequence is triggered when the cluster's powered up. That is when it runs through all of the warning indicators. Usually this is caused by interment power, possibly bad ground. The gas gauge pointing straight down could be from a bad sending unit for wiring.
I pushed my gas needle up with a zip tie now it works fine but cluster still does the reboot sequence as you mentioned but only when I have my wipers and the lights turned on or when I use my blinker and have my radio on
@@BRED23 And you added a fresh new ground?
@@jeffescortlx no I have not what’s the best ground to replace for this should I do the T splice you mentioned in this video on the A8 black and white cable?
@@jeffescortlxok so I hav tapped into my A8 ground Carole with a cable tap can I ground that on to one of the screws holding the gauge cluster in place?
Replaced my 02 cluster with a 7 gauge do you reprogram the mileage
Yes. Included with refurbishing.
Can you update Vin information for swap clusters?
@@claypaul2012 I can correct odometer. But for 99-02 I don't believe there is much specific to VIN. What option you looking for?
@@jeffescortlx I have a 2001 tahoe that I'm thinking about getting Denali cluster for the transmission temp and 120mph speedometer. I was under the impression that the vin would also need to be updated for the vehicle its in.
@@claypaul2012 from my experience it should function just fine as-is. Only thing is it will display the odometer value of the truck it came from, instead of the one it's going into.
02 2500HD. Trans Temp, Eng temp and fuel drop out message center battery and sec 4wdas well as abs light.
Press the brake pedal and it comes back. Release the brake and it drops out again after few seconds. It’s the craziest thing. Can send video if needed. Thoughts?
Si se podria
Is it possible that the cluster has more than one ground?
The 99-02 has one ground for the main cluster logic and the other is for the backlighting.
@@jeffescortlxwhich wire is for the backlighting on the harness?
@@Caliswagg281 I don't remember just going off of memory. But if you Google the wiring diagram it will tell you the pin out.
Como se conectaría ese cluster de silverado 1999 a una 1992
No. The year range is 1999-02.
Where are you located at
Minnesota.
Como los conectas asi para que
Que encienda
Apply ground and all the ignition and battery connections with 12v.
@@jeffescortlx But in what colors do the currents connect?
Hey man , I think I messed my shit up. Lol. 😭 How do I go about sending you my cluster ?
My contact info is available in the top pinned comment.
@@jeffescortlx just sent you an email. Hopefully I typed it in correctly. I couldn’t copy an paste your email off here
Hey do you have a email or a telephone number I have a cluster that I would like you to repair. Would like to find out a price and availability. Thank you
Check the top sticky comment just above this one.
So nothing works on my cluster then I plug in scan tool and everything works I'm thinking a bad ground what would you think
Probably not. Is your scan tool self powered?