Peterbilt 379 dash lights not working

Jun 15, 2012 · 1 Answer. SOURCE: INSTRUMENT PANEL GRAND AM 97 MY MILEGE, This can be your Body Computer Mod. It is located on the right side under your dash. Usually black or gray box about 6'x6'x1' with the plugs. You can by new, but used are fine too. You will need your VIN # for either. Good luck. Posted on May 03, 2009.

Peterbilt 379 dash lights not working. The New truck Peterbilt 389 look's very nice, but I see some problems in interior. 1. Lights of dashboard is automatickly ON, when start engine by pressing E (this bug is existing from patch 1.4 in all trucks) I thing only panel information should be ON by pressing E, but dashboard panel light should be start by pressing L like. beafore patch 1.4.

6,316 satisfied customers. 2016 Peterbilt 567 Cummins vin 1xp-cd49x-0-gd358063 Engine. 2016 Peterbilt 567 Cummins vin 1xp-cd49x-0-gd358063Engine brake not working. When the button is pressed the light for the engine brake … read more.

Source - Fiber Optic Light 8905579. Part# 8905579 OLD# -. In Stock. Ships Today. Skip to the end of the images gallery. Skip to the beginning of the images gallery. Price $267.43. Add to Cart. Technician: Daniel Wilson. If all other accessories are working except your exterior lights, your chassis module or node has likely shut them down because of a potential short or other voltage related issue within your wiring or lighting circuit to protect the control module from damage. It is a failsafe mechanism programmed in.Putting black tape over your car’s dash lights to avoid the maintenance warning isn’t going to make the issue go away. It’s best to have the right maintenance done on your car to keep it running smoothly. You may be able to reset the mainte...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 ...See full list on theautoinsiderblog.com DIRKSCC97 - Peterbilt 379 RH Sleeper Door Skin, No Vent $ 147.00 Dirks1739 - Crank Handle with Switch Body for Electric Window Regulator $ 199.00 Dirks1737 - Peterbilt 359 Trailer Wire Harness $ 175.00

September 12, 2023. The Peterbilt 379 is a heavy-duty truck produced from 1987 to 2007. It was available in various configurations, but all models had one thing in common: an array of warning lights on the dash. Peterbilt …bob_casper20. 71 Answers. SOURCE: on a 1997 chrysler L.H.S. dash gauges don't. Had the same problem with my 1997 lhs went to the wrecking yard and picked up a speedometer head only also can be found on e-bay.Price is about 35.00 dollars It fixed the problem right away.Very easy to switch out took about 1 half hour to do. 1996-1997 will fit.Peterbilt trucks with a gross weight of more than 11.8 tons are reliable and durable, adaptable to various operating conditions. In 2003, the company manufactured 18.6 thousand trucks (in 2002 - 19.5 thousand vehicles). The Mid-Ranger family, manufactured since 1987, is designed to work in the city. The models of the two popular series 200-30 ...Dec 22, 2016 · Have 1992 379 peterbilt shop ecently replace old wiring. Everything dash signal all work but started down road everything goes out all dash everything trailer lights. Could it be ground or … read more About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...NPAUTO 5pcs Amber Torpedo Cab Marker Lights Chrome 17 LED Truck Roof Lights Top Clearance Running Lights Compatible for Peterbilt Kenworth Freightliner Mack Volvo International Heavy Duty Truck. 142. $7999 ($16.00/Count) Save $5.00 with coupon. FREE delivery Thu, Oct 12.

Jan 12, 2016 · MORE DASH LIGHT HELP HERE https://www.youtube.com/watch?v=O-cIxHhObdE&t=20sHELP IN DECRIPTION BELOW ALSOAuto Repair Videos: How to fix your Dash lights that... W900AOwner said: ↑. You'll be best off to open the dash and access the back of the tach with a tester to check for continuity back to the sending unit first, to see if the wires are OK. At that point if they are OK I'd be looking at the tachometer head itself gone bad. Can you rebuild them or what actually goes bad.I have 379 pete and its giving me a hard time. Electric issues, the alternator is brand new and was checked to be working but the truck still runs out of electricity every certain number of milles. Naw there is no lights on the dashboard and the dim lights switching seems to be having problems too. Its a nighmare, help!!!!!Between the metal terminal end, and the sheet metal. This makes a bad contact for grounding. There is enough of a ground source for low beam headlights, but not enough for the additional draw of the high beams. 3.In the headlight wire loom, there is a Fusible Link. This looks like a 1, or 2, or 3 inch large bump in the wire.1 0 Nov 19, 2018 0 Have a 94 Pete 379 that the dash lights quit working. The panel light fuse is good. The relay is clicking and all the outside clearance lights come on with the switch. Each gauge light socket has a green wire #253 (+)and a black wire #239 (-) The ground wires all test continuity to the frame.

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Peterbilt Dom 379 DDC - this modification adds a high quality paid mod from ,,Dom Modding" author with a big amount of tuning and accesories for ATS players. Doms 379 Is a popular and celebrated addon for a popular simulation game. Modeled to Look the part. This rethinking of classic and iconic American design belongs In your your …Oct 3, 2016 · Pull off both side lower kick panels. You will have a multi wire plug (probably passenger side) that goes into the door boot that will be completely "corroded green" Cut and reconnect the wires one to one with butt connectors. Good luck. QUALITYTRUCK, Oct 6, 2016. #2 + Quote Reply. When you turn the key on all the gauges do there full sweep and zero out but when running the oil pressure is the only one that always works, the fuel gauge, mileage and trip odometer only read occasionally and everything else stays at zero, the keypad works to scroll through functions and the dimmer actually does work. I’m not stuck on ...On a 99' 379 pete, the speedometer is not connected to the ecm directly. Works off of the mag senson on the back of the trans. and dip switches set the ratio. If you got a speedometer problem, check or replace the speedsensor on the back of the trans., Check the wires from there to the speedometer in the dash.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...I just bought this truck and I have a lot of issues. I have gauges that will not read. 1. Front drive oil temp ( I see I need a new sensor) 2. Rear drive oil temp ( I put the wire back on and still not working. 3. Main dive trans oil not working as well. 4. Oil temp gauge ( I put it back on and still not working) 5. Fuel press gauge 6.

Sep 10, 2015 · Subject: Peterbilt 379 flashers/turn signals not working. NE IL. Spent a few hours today trying to figure out why the flashers or turn signals on the semi suddenly don't light. Put in a new flasher and fuse. When you flip the signal handle the flasher clicks a few times, like it normally does, and then gradually dies out. Low brake fluid is one of the most common reasons for the parking brake light of a vehicle to stay on after the handle is released. The fluid reservoir is located under the hood, near the dash of the car.USED USED 379 PETERBILT MAIN DASH INSTRUMENT CLUSTER (Q436001101008) Create Estimate. Part Info (800)858-4429 Request Info. ITrack ProTim Jordan's Truck Parts, Inc. CRANDALL TX. ... SOLD SEPERATELY FROM THE DASH WARNING AND SIGNAL LIGHT ASSEMBLY. Create Estimate. Part Info (208)522-1788 Request Info. ITrack …Contact Us. Call us at 7865251983. E-mail us at [email protected]. 926 E. 124th Ave Suite A. Tampa, FL 33612.Hey guys, 1997 Peterbilt 379 Ex Hd, I just finished with installing the last of the LED's for all the lights on the whole truck. Working on truck only, NO TRAILER. I had a no flash problem, on the turn signals and 4 way flashers, ( typical with LED install, and installed a Grote Electronic flasher ).Dash light on 2006 Pete 379. Discussion in 'Peterbilt Forum' started by Jelly47, Aug 24, 2019. Aug 24, 2019 #1. Jelly47 Bobtail ... When I stop and shut the truck off and start it again the computer goes thru it's deal and they work again for a while. This does not affect the speedo, tach, clock or susp load gauges. Could it be a bad relay?When this happens, it's usually because the owner only shared it with a small group of people, changed who can see it or it's been deleted.1. Issues switching between modes. One of the most common symptoms of a faulty headlight switch is issues switching between headlight modes. If the headlight switch fails or wears out it can cause problems operating the headlights. A broken switch may only work on certain modes, or may cause them to come on and off intermittently and erratically.changed Dash light color to purple but look blue in the videoJan 2, 2012 · 432. 534. Apr 6, 2017. Kalifornia. 0. The only time my 379 went into default high beam mode was when the turn signal switch was failing, the stop and taillights both pass through the turn signal switch on a 2001 379 (but not the marker lights) Have 1992 379 peterbilt shop ecently replace old wiring. Everything dash signal all work but started down road everything goes out all dash everything trailer lights. Could it be ground or … read more

Sep 21, 2018 · First go through all your fuses and relays and test all your fuses for power on both sides with the ignition on. Any fuse with power only on one side when testing with a voltage tester is a bad fuse. For your relays the quickest way is to swap one at a time with a known good one for test purposes.

Mar 7, 2010 · 1998 379 headlight problem.... got a 1998 379 with a high and low beam problem. i have put a new dimmer switch, and also changed the relays in the fuse box. it only stays on high beams. even the high beam light in the dash stays on. anyone had this problem or anyideas. the wiring has not been hacked up anywhere, but the truck has been sittin ... What are you working on today? Get an exact fit for your Peterbilt 379. Add a Vehicle. 1-7 of 7 Results. ... Peterbilt 379 Fog Light; Peterbilt 379 License Plate Light Mini Bulb; Peterbilt 379 Back-Up Light Mini Bulb; Peterbilt 379 Side Marker Light Mini Bulb; Peterbilt 379 Wiper Motor; Show Less.Fan never turned on so I did it manually to cool the motor down and the light went out. That's what leads me to believe the sensor is junk. You may have a gauge not reading correctly. The fan should engage around 205, and the light at 208-210. May need to check temp with a temp gun or manual gauge.Between the metal terminal end, and the sheet metal. This makes a bad contact for grounding. There is enough of a ground source for low beam headlights, but not enough for the additional draw of the high beams. 3.In the headlight wire loom, there is a Fusible Link. This looks like a 1, or 2, or 3 inch large bump in the wire.Sep 18, 2020 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... Peterbilt 379/389 Thunderstorm Edit v1.0 (1.40.x) for ATS Download mod Peterbilt 379/389 Thunderstorm Edit v1.0 (1.40.x) for ATS | American Truck Simulator game. Peterbilt 379/389 - custom changes added for the original model truck released by Pinga with a big amount of tuning and accesories added for ATS players. Features …Mo. Nov 9, 2020. #1. The farm bought this truck this summer this fall they saw it had a problem. The marker lights trailer and cab lights didnt always work. The switch has been replaced and relays. The first day they went to use it they put a CB in it and found the CB fuse was blown they replaced the fuse and it blow.BACK-UP LIGHT SWITCH The back-up light switch is located at the upper left side of the transaxle case. The switch is screwed into the transaxle and serviced by replacement. No adjustment is possible. Also, first try to replace the bulbs. Also, if the above two solutions do not work, it could be a wiring problem.Because the glitch in dashboard system might not be giving the dash lights any power resulting in no dash light. To reset the dashboard on your Peterbilt 386 you need to get in the truck and keep the doors and brakes off. Turn the ignition key on and let it cycle to 30 seconds. Then turn off the key. Repeat it for 3 times and you will see that ...Have a 94 Pete 379 that the dash lights quit working. The panel light fuse is good. The relay is clicking and all the outside clearance lights come on with the switch. Each gauge light socket has a green wire #253 (+)and a black wire #239 (-) The ground wires all test continuity to the frame.

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Have 1992 379 peterbilt shop ecently replace old wiring. Everything dash signal all work but started down road everything goes out all dash everything trailer lights. Could it be ground or … read more Right turn signals on a 2015 Peterbilt 389 not working. some test lamps …Semi-Transparent : Tint Over Genuine Rosewood - PDB285 Series Numbers. Genuine Carbon Fiber with 6K Weave - PDB286. Features. Sold Each. Does Not Include Glove Compartment Panel, Sold Separately (PGB022) Fits Truck Model and/or OEM Replacement Numbers. Fits Most Peterbilt 379 Makes and Models Years 1987-2001. Manufacturer …My A/C compressor clutch won't engage. Everything in the control circuit is working fine. When I flip the A/C switch on the dash the A/C relay contacts engage. I confirmed with a test light that the A/C relay is getting power from the fuse on the two pins where it should, pins 86 and 30.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 ... 2000 peterbilt 379 electrical issue no power to my tail light breaker, no tail light headlight working but stuck on high beam if I splice into wire for the park lights and provide juice I have lights everywhere and my head lights will then go from high to low beams no problems.Shawn Warman highights the meanings of the varous dashboard indicators lights in a Peterbilt truck.Visit Peterbilt Atlantic online anytime at http://www.Pete...My left side low beam headlight does not work. The headlight is good. I have tested the wire all the way back to the plug under the bumper near the front tire. ... My 06 379 Peterbilt the dim lights, dash lights, & all trl markers intermintally all go out but still have high beams. Does not blow fuse no power at fuse.comes in and out.What are you working on today? Get an exact fit for your Peterbilt 379. Add a Vehicle. 1-7 of 7 Results. ... Peterbilt 379 Fog Light; Peterbilt 379 License Plate Light Mini Bulb; Peterbilt 379 Back-Up Light Mini Bulb; Peterbilt 379 Side Marker Light Mini Bulb; Peterbilt 379 Wiper Motor; Show Less.1999 peterbilt 379 dash gauges or warning lights not working all fuses are good. none of the push breakers are tripped. i have power on both sides of the relay located on leftside behind dash … read morePeterbilt 379 Service Manual PDF. Peterbilt 379 – North American 6×4 long haul tractors produced between 1987 and 2007. Peterbilt 379 is a classic model of a truck tractor, which has become the primary basis for the development of subsequent series of the brand. The Peterbilt 379 series is implemented on the upgraded chassis of the Kenworth ... ….

Joined: Nov 2015. 2016 Pete 389 interior/cecu problems. 2016 Pete 389 w/ cummins. I noticed that my cab is not grounded by using my power probe. So I started checking grounds and I noticed that the cab, frame and starter grounds all show 0.25 volts. The batteries all show good ground, but when I turn the key off and close the doors, once …Here’s how to fix most of the standard dash warning lights on a 379: Check the ground connection between the warning light …A light bulb circuit works when the electric current flowing through the light bulb combines with the current flowing in the battery or power source. The filament and wires in the light bulb conduct electricity so that electric current can ...1999 379 peterbilt. after the truck runs a while while stop ang go traffic all the warning lights start flashing and going nuts. i took left dash panel apart as a relay was buzzing behind it,and what … So, one set will still work while the other set might have some problems and don’t work. Tail lights could turn off for several reasons and they are almost similar to the causes why brake lights not working but tail lights are. The causes of dysfunctional rear lights are: Burnt bulbs. Blown out fuse.1998 379 headlight problem.... got a 1998 379 with a high and low beam problem. i have put a new dimmer switch, and also changed the relays in the fuse box. it only stays on high beams. even the high beam light in the dash stays on. anyone had this problem or anyideas. the wiring has not been hacked up anywhere, but the truck has been sittin ...Order Peterbilt 379 Instrument Panel Light Mini Bulb online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.Peterbilt Forum > Dash Lights not working Discussion in 'Peterbilt Forum' started by ... I do not have dash lights on my 378. There is no power to the fuse.USED USED 379 PETERBILT MAIN DASH INSTRUMENT CLUSTER (Q436001101008) Create Estimate. Part Info (800)858-4429 Request Info. ITrack ProTim Jordan's Truck Parts, Inc. CRANDALL TX. ... SOLD SEPERATELY FROM THE DASH WARNING AND SIGNAL LIGHT ASSEMBLY. Create Estimate. Part Info (208)522-1788 Request Info. ITrack … Peterbilt 379 dash lights not working, When all of the gauges or warning lights in your car stop working at once, the problem is something that all of the gauges and lights share in common. Check the fuses first. The fuse may be labeled gauges, clusters, or something similar. This fuse should have power on both sides with the ignition in the on position., Download mod Peterbilt 579 NextGen 2022 + Interior v1.1 (1.46.x) for ATS | American Truck Simulator game. Peterbilt 579 NextGen - this modification adds a high quality truck model released by Frank Peru for ATS players. The Model 579 offers the most advanced aerodynamic features and packages, improving fuel economy and your bottom …, Aug 23, 2013 · it sounds like a bad fuse panel. the 379 petes have a bad problem with the fuse panel going out. the due to the location of it. the lack of space prevent the panel from get any ventalation. and the dirt and moisture from being next to the door on the floor. would wear it out. from the symtoms explained. that sounds about right. if the trck has chicken lights on it. then that is a problem. so ... , 2006 peterbilt low air buzzer and flasher clinking sound not working and how to fix it., I have a 1994 Peterbilt 379 the cruise control was working but the engine idle up was not now you can idle engine up - Answered by a verified Technician ... The cruse control has quit working. The Jake works and the break lights …, To diagnose it you need to work backwards: 1. Bad battery or low charge, or bad connections at the battery terminals. If the terminals are full of white snowy looking stuff disconnect them and clean them up. If a terminal is loose (you can turn it with your hand) tighten it. Check the battery voltage., Contributor. 1 Answer. Sometimes it's the sensors on the lines under the hood. Just unplug each one and use a paperclip to jump it. Do one at a time and if you fine one where the AC compressor kicks in than all you …, 18) back - up light switch 19) daycab ad / loadlights 20) sleeper ad / loadlights - 48" / 63" high roof 21) fog lights 22) cab door locks 23) remote keyless entry relay - optional 24) cab dome light / door lamps / door jamb / alarm 25) cab footlights / cigar lighter / power point / b - panel power point, Subject: Peterbilt 379 flashers/turn signals not working. NE IL. Spent a few hours today trying to figure out why the flashers or turn signals on the semi suddenly don't light. Put in a new flasher and fuse. When you flip the signal handle the flasher clicks a few times, like it normally does, and then gradually dies out., 18) back - up light switch 19) daycab ad / loadlights 20) sleeper ad / loadlights - 48" / 63" high roof 21) fog lights 22) cab door locks 23) remote keyless entry relay - optional 24) cab dome light / door lamps / door jamb / alarm 25) cab footlights / cigar lighter / power point / b - panel power point , 1 Answer. SOURCE: INSTRUMENT PANEL GRAND AM 97 MY MILEGE, This can be your Body Computer Mod. It is located on the right side under your dash. Usually black or gray box about 6'x6'x1' with the plugs. You can by new, but used are fine too. You will need your VIN # for either. Good luck. Posted on May 03, 2009., Reverse lights are not working on peterbilt 367. No power to switch on top of transmission. ... I have a 1996 peterbilt 379 that the AC is not working. it seems like the system is fully charged but the compressor ... 2017 12:12I have a 2001 Peterbilt Model 330 Vin # X92M575669 my problem is when I turn the key nothing comes on my …, Feb 11, 2014 · I had tried when I first woke up that morning, and found out that they weren't working, to turn the truck off and then started it again thinking maybe it was just a small glitch and it would fix itself, it didn't work at that time, but the difference later when I was fueling was that the truck was off for about 30 minutes while fueling before ... , John Law December 18, 2022 164 Views Many drivers are familiar with the red and yellow warning lights on the side of the Peterbilt 379. But what do Peterbilt 379 Dash Warning Lights mean and how do you know when to use them? The Peterbilt 379 is a heavy-duty truck that’s been around for many years., Compare. Classic Incandescent Cab Light with Regular Glass Lens and Visor. Item: 345720. $115.99. Add to Cart. Compare. Peterbilt Bullet LED Cab Light. Item: 426400., Get the best deals on Instrument Panel Lights Interior Light Assemblies for Peterbilt when you shop the largest online selection at eBay.com ... 4x LED Blue Dashboard Instrument Panel Light Bulbs for 07 Peterbilt 379,Option 1 (Fits: Peterbilt) ... 50x T5 B8.5D LED RGB Car Instrument Panel Dash Light Bulbs Indicator Accessories (Fits: Peterbilt ..., A few months ago our cruise would not work. Figured out it was the clutch switch which is under the cab where the pedal goes through the floor. Peterbilt wanted $120 for the switch and wouldnt return a electric part so i cut the wire, but connected to complete the circuit and it worked fine except now the clutch doesnt deactivate the cruise, First of all you need to locate the fuse box of Peterbilt 386 truck. The fuse …, bob_casper20. 71 Answers. SOURCE: on a 1997 chrysler L.H.S. dash gauges don't. Had the same problem with my 1997 lhs went to the wrecking yard and picked up a speedometer head only also can be found on e-bay.Price is about 35.00 dollars It fixed the problem right away.Very easy to switch out took about 1 half hour to do. 1996-1997 will fit., My left side low beam headlight does not work. The headlight is good. I have tested the wire all the way back to the plug under the bumper near the front tire. ... My 06 379 Peterbilt the dim lights, dash lights, & all trl markers intermintally all go out but still have high beams. Does not blow fuse no power at fuse.comes in and out., There has been issues with the solder joints on the PIN connection to the gauge cluster. The issue being that over time thru vibration and such one of these solder joints will fail (happened on or 1999) you can repair this though. You will have to remove all of the trim from around the driver's side dash board, this will include the trim ..., 2. The ICU is not responding to the voltage input. 3. The cluster is not responding to the message that's coming in on the ICAN. Check for corrosion at the ICU connectors. It's also possible that a software update will fix the issue. I think the most likely problem is that the ICU is faulty though., Sep 18, 2020 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... , Peterbilt 389 Red Light Dashboard. Created by [GER] Maddog. Peterbilt 389 Red Light Dashboard. Base: SCS Software Skin: Maddog Version: 1.3. Update. ... Custom Stripe and Custom Stripe Paintable on Vipers Peterbilt 389 and Outlaws 379 (doesn't work on legacy or double eagle sleeper). (Comes with 2 different paintjobs …, 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 ... , Have 1992 379 peterbilt shop ecently replace old wiring. Everything dash signal all work but started down road everything goes out all dash everything trailer lights. Could it be ground or … read more, 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 ..., MORE DASH LIGHT HELP HERE https://www.youtube.com/watch?v=O-cIxHhObdE&t=20sHELP IN DECRIPTION BELOW ALSOAuto Repair Videos: How to fix your Dash lights that..., 30 Jul 2019 ... Flickering dash lights may not be due to a problem with the instrument cluster at all. More likely, it's due to either a dying battery or a bad ..., Tail lights and dash lights are connected through the fuse. Sounds like your fuse is blown. This is a standard thing in all cars (at least before Auto Light controls) When the dash goes dark you know you are driving without tail lights. 2021 Tundra 4x4 SR5 6.5 ft bed. 86 Hi-Lux 270,000 miles - Sold., 1998 Peterbilt 379 dashboard removal Discussion in 'Peterbilt Forum' started by Crazybry79, Feb 27, 2015. Feb 27, 2015 #1. Crazybry79 Bobtail Member. 5 0. Jul 11, 2014 0. Hello all! I am in the process of restoring a 1998 379. ... Each company we work with has specific experience requirements for their drivers. In order for you to receive the ..., Peterbilt 379 Window Lift Motor; Peterbilt 379 Brake Light Mini Bulb; Peterbilt 379 Turn Signal Light Mini Bulb; Peterbilt 379 Oil Pressure Switch; Peterbilt 379 Tail Light Mini Bulb; Peterbilt 379 Fog Light; Peterbilt 379 License Plate Light Mini Bulb; Peterbilt 379 Back-Up Light Mini Bulb; Peterbilt 379 Side Marker Light Mini Bulb; Peterbilt ... , Joined: Nov 2015. 2016 Pete 389 interior/cecu problems. 2016 Pete 389 w/ cummins. I noticed that my cab is not grounded by using my power probe. So I started checking grounds and I noticed that the cab, frame and starter grounds all show 0.25 volts. The batteries all show good ground, but when I turn the key off and close the doors, once the ...