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99 Pete 379 No speedo & No tach ... wires connect and all should work that relay controls the whole right side of your fuse box common for going out on a Pete if you have the rounded dash which I think 99 was still the square dash it will be right behind the steering colum they both kinda pia to get to ... turn that realay on when the key is on ...Electrical problem dash lights going on and off gauges jumping buzzers buzzing headlights flashing on and off. 2002 - Answered by a verified Technician ... Gauge still not working and truck started to shut off like ... 2002 379 pete c15 6nz cat .engine will not start without either . has new fuel pump new injectors new cam and crank sensors …When there appears to be no other significant issues other than your Peterbilt dash lights not working, it could mean that it is a problem with the fuse box. If you are unable to locate the fuse box, you only need to check for it inside your truck’s front cab, which is found on the driver’s side. But with other models, it may be on the p…

tachometer not working '96 peterbilt. We just bought a '96 Peterbilt 378 with a 435hp 3406e and 1.34 million miles. The valve cover says 435hp but we were told that the ecm says 500hp and verifies that many miles, but it doesn't run like 500hp. It seems that our '03 C15's with 425hp can outrun it by just a little bit.2006 Peterbilt 379….dash lights, radio, headlights turn off and on flickering while driving down road. ... Working on a 1998 Peterbilt 379 with 3406E. And I cannot ...Im having issues with fuel gauge, tach, speedo, coolant temp and warning lights not working. ... 2000 peterbilt 379, my dash is going crazy.. tach,, speedo,, oil temp, which is even connected to the sensor on the oil pan,, all of them. Replaced relay behind dash left had side.Oct 1, 2023 · Download Article. 1. Turn your vehicle and headlights on. You don’t need to start your car, but you do need power running to the lights. Put the key in the ignition and turn it to the “on” or “accessory” position. Then, turn on your headlights. 2. Locate the dimmer switch for your lights. Nov 10, 2017 · 319 Answers. SOURCE: gauge cluster lights. You should have a dimmer switch that increases or decreases the amount of light that the dash produces. This should be located to the right of the steering wheel. It is a wheel that goes up or down. I believe on your model you can slide the switch all the way up, and you will feel a click, and that ...

when we leave the truck sitting for 15-30 min and turn it back on, none of our gauges work. no RPM, no MPH, no oil pressure, no coolant. the air pressure works though. when it happened the first time, we tried turning the truck off and on every few min, multiple times, it didnt fix itself. the screen shows a check engine and an abs light.Yes. VERIFY the SJB fuse 22 (15A) is OK. If the vehicle is equipped with cab marker lamps, GO to O8 . If the vehicle is not equipped with cab marker lamps, VERIFY the SJB fuse 22 (15A) is OK. If OK, GO to O2 . No. If the cab marker lamps are illuminated and all the remaining parking lamps are inoperative, GO to O2 .4. 0. Apr 30, 2015. Arena WI. 0. What I have is 07 379 having wiring issues. Starting with the basics im running single bucket headlights along with the led light bar as my front signals. I have 2 round double faced ones off the mirror as turn signals. and for the rear I have 4 in my center panel wired as just running lights and the mud flap ... ….

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