Peterbilt ground wire. Information in this manual will help reduce overall costs through pto wiring 6-15 . #4 HORN LEFT LP PNL #5 TURN ACC SW HT ROOF MIRROR AUX DEF #3 #3 FAN RIGHT HORN HTR A/C 280 UNSW SLPR ACC CB SPARE WR AUX LPS STOP TAIL WIPER CL LPS #2 #2. wiring information, and other information useful in the body installation process. On the pages that follow, detail drawings show particular views of each vehicle; all Peterbilt Manitoba Ltd. Whether you’re a professional technician or Apr 26, 2014 · If the fan isn;t engaging, hook the test light to power and then touch the pins one at a time. 1. or Best Offer. Viewing A Thread 2000 Peterbilt 379 Cruise Control. Jun 11, 2021 · give me a like 👍 good luck Oct 20, 2018 · Best answer. May 5, 2007. com Elite Truck Parts Jump Wire Harness - Paccar ID: ETP-P92-1571-0600. The wiring schematic is a map of the truck's electrical system, and it shows how all of the different components Feb 7, 2011 · Therefore, id have an illumination circuit, a ground and a hot, and another feed wire from the ecm(?) or sensor to light up the warning lamp part of the gauge. ) started grounding the high powered alternators to the engine. These alerts can help you avoid injury to yourself, your passengers and help prevent costly damage to the vehicle www. Peterbilt Air Trac Single 3-25 GROUND CLEARANCE CALCULATIONS 3-44 . Aug 17, 2016 · Remove the screws that hold the sending unit to the tank and take it out. Dec 17, 2023 · 1964 impala ignition wiring diagramFuel sending unit Peterbilt schematic 379 scania 1998 fault. … read more. The ground is the side that comes from the shield of the coaxial cable. This section includes drawings and charts of the following Peterbilt Models: 389, 386, 384, 367 SFFA, 367 SBFA, 367 HH, 367 FEPTO, 365 SFFA, 365 SBFA, 365 FEPTO, 567 and 579. Found that the compressor relay is missing the control ground. Nov 11, 2022 · The 2014 Peterbilt 389 Wiring Schematic is a must-have for anyone working with the reliable and robust Peterbilt truck. The ground for the ecm should be run in the same bundle as the positive off the fuse box. I would check all fuses, should be labeled G1 through G8 on the firewall. 50. For example: 8 AWG = Eight Gauge. Jan 10, 2011. Faulty Ground Connections. The voltage running through the housing was wiping out the housings and waterpumps. These relays are responsible for controlling various components and systems, such as the headlights, windshield wipers, HVAC system, and more. Radio Constant 12V+ Wire: Green/Purple. Refer to the WARNING in the General Safety Instructions on page 7. Here’s a breakdown of the most common components of the Peterbilt Concert www. P94-6016, Schematic - 379 Model Family Electrical. 5. If it does engage, then we need to check the head unit for power/ground or if it is bad. body light connections 6-20 May 7, 2024 · The constant power and ground wiring can most easily be connected through the fuse panel. In the Peterbilt trucks, the relays behind the dash play a crucial role in the overall functioning of the vehicle’s electrical system. Diesel Technician. remote pto/throttle harness 6-15 . Top Rated Seller metoo_motorfans (12,999) 98. WIRING OF MAIN DISTRIBUTION PANEL. Zonar recommends attaching an Add-A-Fuse or spade connector to the constant power wire. FRAME COMPONENTS 3-38 . The Body Builder Module (BBM) architecture includes both a Cab Electronic Control Unit (CECU) and the new BBM to control various systems on the truck. It contains all the necessary wiring diagrams, component locations, and more – all presented in an easy-to The Peterbilt 389 Full Schematics is a comprehensive resource specifically designed for technicians and electricians working with Peterbilt 389 trucks. Apr 23, 2021 · Technician: Nich M. Special Order. Trimble part L-016-0537 includes these pins spliced to power leads. This detailed schematic provides an essential guide to help repair, service, and maintain this classic workhorse. Equalizer Comp For Civic 1982 C 4dr1500 Ka Kh Kl Order For every wire, you will need a ground wire. 1 part. It's not merely about fixing issues as they arise; it's about preventing them in the first place. Attach the other end of the same cable to the positive (+) terminal of the charged (booster) battery. 1995 GMC Suburban K2500 4x4 6. There is a spare +(253) and -(239) connector behind the dash for an extra light socket that is not being used. Aug 30, 2018 · The Peterbilt 378 wiring schematic is one such diagram that details the complex electrical paths and components of the truck. 38. It requires a 6 AWG copper ground wire. This wiring harness is responsible for connecting all the electrical components of the cab, including the dashboard, lights, and switches. 16-03264 2) circuit numbers printed on insulation every 4" or less 16-04345 90 ° #10 molded with male blade in shell 16-04348 Feb 18, 2021 · The ECM connects at the same bolt as the lead in this picture that isn't labeled up by the forward arrow. This diagram is also composed of a few additional components that make up the full wiring schematic. Nich M. 740 inch. Jun 17, 2022 · Welcome back to another video of working on the truck! Today we're still trying to track down that stupid little shake(s) I've been getting, and next up bein Jul 9, 2019 · 1996 peterbilt 379 vin 417384 ,engine fan dont work, the engine fan is controlled by the ac switch and engine ecm, i need to know if the engine sends through pin 28 12v or ground or how control the fa … read more Aug 17, 2019 · The grounds are usually a wire that is screwed to a seperate lug on the sender plate or it is held on with one of the screws that mount the plate to the tank. Ask Your Own Medium and Heavy Trucks Question. A few days later, the same issue is happening, then the low beam on the driver's side was out completely, high Wire color codes are an essential part of understanding Peterbilt stereo wiring. Vocational, Technical or Tra 268 satisfied customers. if you run a ground to get it going, the harness is between the cab and bunk is. Cat C16 Engine 7cz Ecm Wire Diagram Pdf. Safety Alerts Please read and follow all of the safety alerts contained in this manual. Apr 10, 2023 · Led Upgraded Peterbilt 389 Headlight Assembly. #1. Dec 8, 2010 · Usually pin 52 and 53 are feed power from the battery on one wire that splits before the two pins at the ECM. and or smashed. Safety Oct 1, 2017 · The amperage seems to range from . In this article, we'll take a closer look at the wiring schematic for the Peterbilt 389 and how it can help you diagnose and fix electrical problems. P186 is probably a specific connector. Twisting wires together and black tape is never recommended. PETERBILT Multi-Purpose Electrical Connector. 242 powers lots of things and 239 grounds a bunch I believe the water sensor should be A98 for the signal, and 98 goes to the light on the dash. And the output of relay going down to starter. I finally got it sorted out, the ground and low beam wire were swapped. Add to cart. Running a couple of ground straps costs pennies but the benifits can be very important. Radio Ignition Switched 12V+ Wire: Yellow/Black. I have a wiring diagram, but I can't even find the location of the ac on/of switch on it. Technician: Nich M. this is a tuff one, either trace the harness down, run new harness, or just add a ground wire. This diagram shows how the headlights are wired to the truck's electrical system. OVERALL CAB HEIGHT CALCULATIONS 3-37 . Radio Illumination Wire: Green. Peterbilt 379 Wiring Harness for CAT C-15 / 6NZ. Headlight Wiring Harness Fits Peterbilt 378 & 379 1988 thru 2007 / 127 119 BBC. $1595. Need Perebilt 387 fuse panel diagram for a 2001. Part# P92-6626-1500 OLD# -. Mar 1, 2014 · Remember to attach all warning decals and labels to the visor and dash. If you prefer to crimp your own, the pin is TE Connectivity 1-968851-1 and is available from a number of online sources. A good ground is as important as the hot wire feeding. depends how much time and $$ to spend repairing this, INTRODUCTION Example: WARNING! Donotcarryadditionalfuelcontain-ersinyourvehicle. This guide provides invaluable insight into the Refer to the Peterbilt headlight wiring diagram to identify the specific wiring connections required for your model. Dec 30, 2009 · as the engine was cranking smoke started to come off of one of the negative posts, which has a single white wire connected to it. You just clean and reconnect, you can also test if the ECM has proper ground at the OBD II port, On the OBD port pin 4 or 5 is ECM ground, you can measure that for the ECM just as a PACCAR Wiring Color/Meanings. 1995 BMW 530i 5spd. There are the wiring diagram type drawings that show you the connectors and give you an idea where about on the harness you'd find them (like P186). Exhaust Single RH Side of Cab DPF/SCR RH Under Cab 3-40 Jun 4, 2019. . 9%. In the interest of prolonging the life of certain vehicle components, and preventing corrosion- here's a tip from the heavy equipment industry. May 20, 2024 · Peterbilt’s signature, pod-mounted headlamps are durable, corrosion-resistant and simple to replace. Jan 7, 2018 · The most essential components of wiring a Peterbilt Concert Class Radio are three major parts: the power source, the ground, and the antenna/coaxial cable connection. One of the most important components of the Peterbilt 379 is the headlight wiring diagram. 1) circuit numbers remain the same as 359,362. Oklahoma. It seems to runs up or down with the imbalanced load on the Neutral. Radio Amplifier Trigger Wire: N/A. The 2001. One wire goes to the center pin on the tank sending unit, one goes to ground, and the third connects to a 12-volt source, normally the ignition switch. SL3406, Jul 4, 2011. Yes they do run off a ground to complete circuit. This manual is essential for both new operators and seasoned drivers as it can www. This supplemental operator’s manual provides information that is not part of the base 579 chassis. Then check the power inputs to the chassis node. body light connections 6-20 Jul 26, 2023 · The Peterbilt 379 is a popular heavy-duty truck that is used for a variety of applications, including long-haul trucking, construction, and mining. A wire attached to the body or a surface with undercoating or rust can cause a ground problem. This number of “0” in the size is the number of “Aught”. The following are a few additional suggestions of ways to ground your antenna. Jan 19, 2023 · Big Rig Chrome Semi Truck Lighting And Accessories. Attach the other end of the negative cable on to a bare metal part on the truck with the dead battery. 26. Please take time to become acquainted with your vehicle by reading this operator’s manual. When I test the +(253) wire for power with my bulb tester it lights up and then all my dash lights work. 0. Correct Gauge Terminology. trailer cable connections 6-18 . Routine inspections and professional servicing go a long way in ensuring the longevity and efficiency of your truck’s Feb 25, 2018 · You could get a relay and and have the wire that's on the solenoid now control the relay to engage solenoid on starter. If the fan still doesn't engage, replace the fan. Many times they would hit the nearest object and ground to the thermostat housing. Radio Ground Wire: Black/Light Green. A well-maintained cab wiring harness is essential for ensuring the smooth and efficient operation of a Peterbilt 379. Jul 7, 2004 · This item: Grote 44891 2 Pin Flasher (Variable-Load Electronic LED) $2135. Brand: Elite. The Peterbilt 348 Schematics wiring diagram is a detailed guide for understanding and troubleshooting the electrical system of your Peterbilt 348 truck. Ships within 3 to 6 weeks. Grote 44530 2 Pin Flasher (12 Light Electromechanical) $1600. It has a fuse link cable and goes to a connector. Verified that it is fully charged. SPARE EE60 P376. PETERBILT Multi-Purpose Ground Strap. SKU: ETP-P92-1571-0600. general wire labels 6-17 . An H4656 headlight has 3 prongs. That wire could either be attached to the frame somewhere close or run all the way back into the cab wiring with the sender wire and be connected to a master ground. Peterbilt Truck 379 Model Family Schematic Manual. OVERALL CAB HEIGHT CALCULATIONS 3-45 ELECTRICAL WIRING CIRCUIT May 4, 2022 · The Peterbilt 386 wiring schematic provides detailed, step-by-step instructions for correctly connecting electrical components within the truck. Connect the wires. i have re-connected them the same way they . It's an invaluable tool for any technician or hobbyist working on the popular big rig. A ground wire size chart that follows will tell you exactly the size of the grounding conductor you need. I work at a Kenworth dealership and I figured I’d share some wiring color coding that is common amongst Peterbilt and Kenworth both for chassis that are built from 2007 to present as of right now. Run power to relay straight from a 12v source that's straight to battery. Peterbilt provides spare Power, Ignition, and Ground sources, but connection requires a special pin. 779 lbs / 1000′. 59 shipping. Locate a constant power source that measures 8-30 volts with engine off or on. Check Details This manual contains information for the correct operation and maintenance of your PACCAR engine. DATA LINK J1922 J390 TACH P377. With a comprehensive wiring diagram, it is easy to troubleshoot electrical problems and keep your vehicle running smoothly. The term “gauge” is used for wire up to 1 AWG. DIY is the top-rated supplier of printed dealership factory manuals. It contains a comprehensive set of wiring diagrams, showing the various components and connections in the system. SPEEDO P378. Remove the fuse panel cover to gain access to the fuse panel. GROUND CLEARANCE CALCULATIONS 3-36 . This diagram will illustrate the color-coded wires and their functions, such as ground, low beam, and high beam. Please help! :Banghead However, like any vehicle, it may experience electrical issues over time. PETERBILT Multi-Purpose Wire Connector. Electrolysis damage in an engine cooling system is caused by electrical currents that exist in the engine coolant jacket, the radiator, and the heater core. com. PETERBILT Floor Console Harness Connector. Key exterior features: The 3-Piece Metton® Hood:Lightweight, strong, impact resistant and opens to a full 90 degrees for easier access and serviceability. Dec 27, 2012 · BLACK - heater and system ground RED - heater power ORANGE - system power WHITE - motor GREEN - motor BLUE - clearance light power if equipped If you apply 12v to GREEN wire & ground the white wire, the motor should run in one direction- Reverse the leads, and the motor will run in the other direction. Jun 28, 2012 · The only time I hear the ac compressor clutch, and ac relay click is when I check for power with a test light on circuit a495. PETERBILT Air Dryer Connector. You can unplug the wire and jump across with a paper clip to test if the pressure switches are closed. Example: 1 AWG copper wire doesn’t require a 1 AWG copper ground wire. Enhanced Visibility: With Model 567’s pod-mounted headlamps and sloped Metton hood. +C $13. All manuals in stock. Nov 9, 2021 · This 31LED Peterbilt Headlight Turn Signal Sealed Light is hardwired with 3 wires: White is ground, red wire is turn signal and the front 21LEDs (high brightness) and Back 6LED light on, black wire is park, running light or clearance light and the front 21LEDs (low brightness) and side 4LED light on; wire codes male blades in shell, both ends 16-03263 female in shell, both ends. If these wires touch each other, you could short your system. The Peterbilt 389 is a popular semi-truck model with a big and powerful engine. Mar 12, 2010 · 1,450. 1 for high beam, 1 for low beam, and 1 for ground. peterbilt. The speed sensor wires are twisted and the sensor is installed on the tailshaft of the transmission. ground switched power cab fan low cab blower control bunk blower control bunk blower 45 248 342 152 239 diode yellow yellow red black brown green white black orange red temp sensor 239 pcc module 5678910 yellow yellow red black brown green white black orange red temp sensor pcc module b239 248 bunk temp control b239 635 629 heater/air Dec 2, 2017 · Release Date 5 18 2021. If the equipment is traded or sold, give the manual to the new owner. This is done in one of two ways. It outlines the various colors and functions of the wires, the locations of each component, and the specific connections required for each component. The diagrams can be confusing if you don't have all the information. Next, remove the three wires on the back of the old gauge. The Peterbilt 520 Body Builder Manual can be very useful when specifying a vehicle, particularly when the body builder is involved in the vehicle definition and ordering process. Some of these items ship sooner than the others. basic pto setup without pto provisions 6-15 . You should find a fuse in the battery box for this power source. Add vehicle. It takes 20 pounds to pull off a good crimp for 18-gage wire. Ask Your Own Heavy Equipment Question. RADIO. 7 parts. Whether you're replacing wiring components or trying to troubleshoot a problem with the truck, a detailed schematic is invaluable in May 9, 2008 · In the late 80's and early 90's, truck manufacturers (Peterbilt, Kenworth,etc. The system uses a chassis node controller to operate the lights. FIREWALL 5. The BBM provides additional features to the vocational market for PTO Mode Control (PMC), and Jan 14, 2017 · Add the correct Pete switch, add a fuse and they work. On the cover, they give you a place to write in what you add. SLPRLT HD LP #1 #1 RT HD LP FROM TRINARY A93. Power for the compressor clutch comes from the relay in the fuse panel. Peterbilt Motors Company reserves the right to make changes at any time without notice. The connector on the trailer should have a wire from the connector secured tightly to a clean surface on the trailer. Understanding the common problems that can occur in the wiring system of a Peterbilt 359 can help in troubleshooting and resolving them effectively. This manual provides detailed electrical schematics and diagrams of the Peterbilt 389 model, offering a complete overview of the electrical system. Since I bought it the drivers side light was dim on low beam and the indicator stayed on. Using this Manual. 12V CHARGING CIRCUIT. One of the most important components of a Peterbilt 379 is its cab wiring harness. Wiring Diagram For A 1994 9400 Eagle Mhh Auto Page 1. Original factory PETERBILT 348 2019 dealership manuals by DIY Repair Manuals. Do you think your odd terminal is just that- a lead from the ecm or else not, im not sure. You also have two seperate ground wires on pins 65 and 67. Each wire within the diagram is color-coded to indicate its function, such as power, ground, or speaker connections. To get a better ground, you could move the mount and the antenna to a different location with a better ground. Can anyone shed some light onto what's going on here. It goes to one of the switches, and the main ac switch. Fuel sending unit - ClassicOldsmobile. Peterbilt Air Leaf 3-24 . They are there for your protection and information. The BBM is available on MX-powered Peterbilts, Model Year 2019 and 2020 1. In addition to this, the schematic also details the various fuses, relays, and other parts that may be necessary for complete operation. 11. The Peterbilt 379 Full Schematics is a comprehensive guide for understanding and troubleshooting the electrical system of your Peterbilt 379 truck. These leaks are problematic. May aid in troubleshooting electrical issues without having a wiring diagram available. Operator S Manual. Soldering is the prefer method. Remove the fuel gauge. The term “aught” is used for wire 1/0 AWG and larger. Fuelcontainers, either full or empty, may leak, ex-plode,andcauseorfeedafire. Each tail lamp assembly at the back of the trailer also must be grounded. 9m vehicles and 520 models. A: A standard Peterbilt 379 headlight wiring diagram usually depicts the headlight switch, headlight relay, fuse box, headlight bulbs, ground connections, and various wiring harnesses. That connects to the body right above the battery box on the forward side. A ground line with voltage can shock people if they touch grounded objects. Read and follow all safety instructions. Black: Ground wire. Feb 20, 2024 · In the realm of maintaining a Peterbilt 567, regular electrical system maintenance stands as a cornerstone of proactive care. 2009 Peterbilt 386 For In Burgettstown Pennsylvania Equipmentfacts Com. Skip to the beginning of the images gallery. Total price: Add all 3 to Cart. 2 amps to 3 amps or so. Nov 17, 2017 · 239 is a ground wire 242 is switched accessories Neither are specific to anything in particular. E 335 Wiring Diagram Pdf. Radio Dimmer Wire: N/A. For this code, you would have to check all the ground wires for excessive resistance that you have found, and this includes the negative battery post. EXHAUST SYSTEMS 3-40 . We have a 2000 379 I might pop the panel off tomorrow and see how many wires the voltmeter has Oct 24, 2019 · 2007 Peterbilt 387 *****************A/C inop. Run a ground wire to your radiator. Here's the exterior lighting diagram. Please refer to the base chassis operator’s manual for information unrelated to battery electric truck functions. The closer to the household load being balanced, the lower the amperage goes. electrical wire number and color 6-17 . | Peterbilt Manitoba Ltd. Sep 7, 2023 · With its powerful engine and impressive towing capacity, the Peterbilt 389 is a reliable and capable truck that can handle even the most demanding jobs. Black Led Headlight With Turn Position Drl For Peterbilt 386 2005 2015 387 12022 2010 Driver Uptruckparts. Not sure what all the options were for those engine shutdown systems or how they were wired pto wiring 6-15 . 1964 Impala Ignition Wiring Diagram - Wiring Diagram and Schematic. com Jan 14, 2022 · They're isn't any type of key for these newer trucks. EE52, GREEN. 2 AWG = Two Gauge. To gain a better understanding of the wiring system and ensure Find many great new & used options and get the best deals for Peterbilt 451972A7 GROUND WIRE Horn ? PACCAR KW KENWORTH *NOS* at the best online prices at eBay! Free shipping for many products! Jan 11, 2013 · Good Evening. Keep this manual with the equipment. Good solid crimps are important. The Extended Rear Window, Extended Cab and Unibilt sleepers are also included. The other side of control goes to original wire going to starter. TRINARY SWITCH A/C. Dec 23, 2022 · The 2007 Peterbilt 379 Headlight Wiring Diagram is an invaluable tool for any trucker or mechanic looking to keep their vehicle in top condition. com But if your readings are not 0, you can blame the voltage on the ground wire on the following: 1). Jumper - Wire Frame Ground P92-6626-1500. Ground one side of control of solenoid. One of the most common issues in the Peterbilt 359 wiring system is faulty ground connections. Fuel Tanks 3-38 . Fuel gauge wiring problem - XK - Jag-lovers Forums. Constant Power. 2013 Peterbilt 386 Electrical Wiring Diagram Manual. Common wire color codes include: Red: Power wire. Brand New. So I've been chasing a headlight problem on my 05 379. White: Front left speaker positive. The Moto Mirror hotline for help is 1-800 What model peterbilt is this? You basically wire the headlights in Parallel, You have 1 power supply, and one ground, and a wire coming from 1 headlight to the other as a power and ground source for the passenger headlight. The diagram provides detailed diagrams of headlight wiring, as well as Jul 19, 2012 · Repeating what pawpaw said. 1992 BMW 525i 5spd -- 2,000 miles T4 Turbo/Nitrous/Methanol smoke show. A properly grounded cooling package limits electrolisis buildup. 5 Turbo Diesel "F" VIN -- 110,000 miles. It may also indicate the presence of other related components like dimmer switches, high beam indicators, and low beam motors, depending on the specific model Jan 29, 2014 · 1995 Mercury Villager Car Stereo Radio Wiring Diagram. You also need to place the hot side of the coaxial cable to the antenna itself. Release Date 7 1 17. As you may know, the ground wire doesn’t have to be as big as the main wire. It is important to have a working knowledge <a title="Peterbilt 379 Jan 21, 2023 · The Peterbilt 389 wiring schematic can help you troubleshoot complex electrical issues quickly and efficiently. 2 parts. Nov 19, 2018 · Each gauge light socket has a green wire #253 (+)and a black wire #239 (-) The ground wires all test continuity to the frame. C $114. These alerts can help you avoid injury to yourself, your passengers, and help prevent costly damage to the vehicle. Skip to the end of the images gallery. Best selection and lowest prices on operators manual, service repair manuals, electrical wiring diagram, and parts catalogs. Then check the wiring from the chassis node to the lights. 1981 2005 Peterbilt 362 Complete Electrical Wiring Diagrams. I run ground straps in several places on my truck. 2). Radio Antenna Trigger Wire: N/A. TO ENGINE HARNESS 93 FREON CLUTCH. Peterbilt Service Manual Wiring Diagrams Free Pdf Ewd Manuals. 56 Peterbilt Wiring Schematic Pdf Truck Manual Diagrams Fault Codes Free. Safety Alerts Read and follow all of the safety alerts contained in this manual. CEC Industries EF32RL Flasher. BULKHEAD 33. Price: $49. 10. Stray voltage is leaking from the hot wire to the neutral or ground. Attach the remaining jumper cable FIRST to the negative (-) terminal (black or N) of the good battery. One of the most important aspects of the Peterbilt 389 is its wiring schematic. The right 2 rows of fuses in the panel by your clutch pedal are for add ons. 1987 BMW 325E 5spd -- 252,000 miles soon to be DOHC swapped. from China. 48 Original price $187. It shows the exact layout of each wire, and the corresponding terminal or connection point. Electrics get very whacky if they cant get to ground. there are a total of three white wires (about 8 or 10 gauge), one is connected to a negative post while the other two are connected to the positive post of the same battery. A harness to ground the cooling package on Kenworth and Peterbilt trucks to the frame. Check to make sure you have good secure crimps. Jul 2, 2009 · I looked at the black wire connector at the blower motor and it was fine both the metal and plastic. DEF Tanks 3-39 . Every single over the road truck that I've worked on, lots of agricultural and earth moving equipment has a ground wire running to the radiator. trailer/body builder wire colors 6-19 . The electrical service is brand new, a month or so old from the weather head down. If you lose power at both these pins at the same time the ECM will never show a fault code. To do that, you hook the test light to power and touch the pins at the switch for the blower and see if the fan Oct 23, 2021 · A Peterbilt 389 wiring schematic is a detailed diagram that shows the layout of the electrical components in the vehicle. If no pins are available, follow the Jul 12, 2021 · Unfortunately the numbers are worn off both sets of wires so its hard to tell which one is which, Although one is a twisted pair. Price $183. The pressure switches are on a ground circuit. Peterbilt Suspension Parts Stengel Bros Inc. Check Details. data bus wire colors 6-17 . Mirror turn signals and the bumper light might require enabling them in the CECU with ESA software. sheared to a point of cutting off power. ro to ur ok kd sh it wm ti nn