Hdlp fault peterbilt When headlights and clearance lights fail but signals work, first test the headlight fuse and relay. Check the light check switch, as it can override normal lighting if faulty. Jun 17, 2010 · 2012 pete HDLP fault Discussion in ' Peterbilt Forum ' started by Sether, Sep 1, 2012. Sep 21, 2022 · I purchased and installed a set of United Pacific LED headlight assemblies for 579, and am having an issue where when the parking brake is released and the DRL’s come on. In another issue, there was an HDLP fault showing up on the dashboard but after checking both pigtails and bulbs, everything appeared fine. I intermittently get a HDLP fault on the dash and the headlights will not come Jun 22, 2012 · 13 Peterbilt 389 headlight issue Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by goose87, Oct 29, 2019. This load resistor will provide the amp draw the truck is looking for, and the fault message will go away. 2012 379 peterbilt. Nov 4, 2025 · Explore the ultimate Peterbilt fault code list for 2025. The HDLP Fault indicates a headlight circuit problem despite good bulbs and pigtails. They are back-feeding through the clearance lights on the tractor and half of the trailer. Be sure to mount the load resistor in an area with air circulation. Moreover, the fault only appears upon switching the high beam light on. The specification for the load resistor is 15 to 25 ohms, 50 to 80 watts. Fix-as-Fail Only Peterbilt offers additional troubleshooting steps via SupportLink for fault codes P3818, P3830, P3997, P3928, P3914 for all PACCAR MX-13 EPA 2013 Engines. To access these codes, you’ll need a diagnostic tool, such as a code reader or scan tool, plugged into Mar 5, 2020 · HDLP Fault - Please help Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by ZooX, Mar 5, 2020. Dec 5, 2010 · So here is the story on the latest mystery problem to plague my truck. Dec 1, 2012 · Headlight Fault light came on and than headlights went out. . This code is a precise identifier of the fault, providing valuable information to diagnose and repair your vehicle. Fault light came on, an instantly - Cars & Trucks question We would like to show you a description here but the site won’t allow us. 2018 Peterbilt 579 Headlights and Clearance Lights Not Working 579 models often face headlight fuse failures and faulty light check switches causing lighting issues. It enables the vehicle’s Primary Care Provider (The Primary Care Provider may be the truck’s owner, a fleet manager, or Dec 7, 2022 · A change of wire and fuse should fix the problem. The HDLP Fault and delayed headlights in the 2012 Pete 384 typically stem from a failing headlight relay or corroded wiring connections. Learn what each code means and troubleshoot with Jaltest diagnostics. 2011 Peterbilt 367 Circuit Failure Warning and Headlight Issues 367 models often face headlight failures and electrical circuit faults causing dashboard warnings. Yet the clearance lights and headlights are both out. The load resistor is simply connected to the high beam power wire, and ground the ground. 2018 Peterbilt 389 HDLP Fault: Headlight and Clearance Light Loss 389 owners often face intermittent headlight faults and dashboard clearance light failures linked to electrical issues. SmartLINQ In-Action Peterbilt SmartLINQ takes remote diagnostics a giant step forward – it goes beyond diagnostics and driver alerts to provide detailed communication about problems as they occur, recommended actions, and guidance for how to resolve the problem. Start by inspecting the rocker switch and relay for signs of wear or damage. Mar 12, 2015 · Jump to page : 1 Now viewing page 1 [50 messages per page] Oct 22, 2024 · Understanding DTC Codes When your Peterbilt’s onboard diagnostic (OBD) system detects an issue, it triggers a diagnostic trouble code (DTC) to help you identify the problem. Mar 5, 2020 · HDLP Fault - Please help Discussion in ' Trucks [ Eighteen Wheelers ] ' started by ZooX, Mar 5, 2020. About this Programming Guide This programming guide is designed to help dealers and technicians understand the programming options available for Peterbilt trucks, as well as how to update those parameters. exy dheerb pputn ajmiy fim avkb iqtiuz qnnwiwr wbkp tdm czoc cpic gric dmhcn aacto