{"product_id":"amp-research-pass-thru-obd-harness-76405-01a-ram-toyota","title":"AMP Research Pass-Thru OBD Harness | PowerStep Plug-N-Play System | 2018-2026 Ram \u0026 Toyota | SKU: 76405-01A","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel tutor-markdown-rendering stronger enable-updated-hr-color\" id=\"model-response-message-contentr_22d64e91c8d92790\" aria-live=\"polite\" aria-busy=\"false\" dir=\"ltr\"\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eBrand:\u003c\/b\u003e AMP Research | \u003cb data-path-to-node=\"6\" data-index-in-node=\"22\"\u003eSKU:\u003c\/b\u003e 76405-01A | \u003cb data-path-to-node=\"6\" data-index-in-node=\"39\"\u003eMaterial:\u003c\/b\u003e OEM-Grade Heavy-Duty Composite \u0026amp; Copper Wiring | \u003cb data-path-to-node=\"6\" data-index-in-node=\"98\"\u003eInterface Type:\u003c\/b\u003e Dual-Port Pass-Through OBD Interface | \u003cb data-path-to-node=\"6\" data-index-in-node=\"153\"\u003eFree Shipping\u003c\/b\u003e | \u003cb data-path-to-node=\"6\" data-index-in-node=\"169\"\u003eAffirm \u0026amp; Afterpay Available\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"8\"\u003eYou Installed Automatic Steps. Now Your Diagnostic Port Is Blocked.\u003c\/h3\u003e\n\u003cp data-path-to-node=\"9\"\u003eYou upgraded your truck with an AMP Research PowerStep system to make cab entry effortless on your lifted build. What you didn't plan for was losing your diagnostic port. Standard Plug-N-Play automatic step kits occupy your factory OBD-II port to read digital door-trigger signals. The moment your steps are powered, your OBD port is completely blocked—leaving you unable to plug in a tuner, a digital gauge monitor, or a dealer diagnostic scan tool without manually unplugging your step system.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003eWorse yet, hacking or tapping into your factory data wires with cheap components introduces serious electrical vulnerability. In high-heat arid climates, low-grade plastic connectors turn brittle and crack under minimal dash vibration. In the high-humidity or freezing salt conditions of the Corrosion Belt, moisture and road brine migrate into unsealed cabin components, causing ghost codes, intermittent step failures, and communication dropouts across your vehicle's Controller Area Network (CAN-bus).\u003c\/p\u003e\n\u003cp data-path-to-node=\"11\"\u003eThe \u003cb data-path-to-node=\"11\" data-index-in-node=\"4\"\u003eAMP Research Pass-Thru OBD Harness (SKU: 76405-01A)\u003c\/b\u003e is the clean, commercial-grade engineering solution. Purpose-built for 2018–2026 Ram and Toyota platforms running Plug-N-Play PowerStep systems, this harness splits your factory port into an integrated, dual-port pass-through assembly. It keeps your automatic steps fully operational while providing an open, fully functional secondary OBD-II port right under your dash.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"12\"\u003eThe Obsidian Take\u003c\/h3\u003e\n\u003cp data-path-to-node=\"13\"\u003eWe carry the AMP Research 76405-01A harness because it preserves your truck's electronic architecture without compromise. Most builders completely ignore OBD port accessibility until their truck is at the dealership or repair shop, and the service writer informs them that their scan tool cannot connect due to step hardware blocking the port. This pass-through harness completely eliminates that checkout friction by acting as a transparent electronic bridge.\u003c\/p\u003e\n\u003cp data-path-to-node=\"14\"\u003eInstead of low-tier consumer electronics wiring, this harness features \u003cb data-path-to-node=\"14\" data-index-in-node=\"71\"\u003eOEM-grade, vibration-resistant molded connectors\u003c\/b\u003e engineered for severe thermal cycling. Whether you're dealing with a punishing 110°F summer afternoon in Phoenix or freezing winter conditions in the Northeast, the heavy-duty locking tabs remain perfectly secure. It supports simultaneous, high-speed data transmission for both your PowerStep controller and external diagnostic equipment with absolutely zero fault codes or signal degradation. If you run a custom tuner, data logger, or monitor alongside your electronic steps, this pass-through harness is mandatory equipment.\u003c\/p\u003e\n\u003cp data-path-to-node=\"15\"\u003e⚠️ \u003cb data-path-to-node=\"15\" data-index-in-node=\"3\"\u003eDigital Tuning \u0026amp; Monitor Compatibility Note:\u003c\/b\u003e This harness is engineered to split OBD-II communication lanes cleanly. However, if you plan to run high-frequency, continuous-broadcast data tools (such as specific real-time custom performance programmers or active telemetry loggers) alongside your steps, ensure both modules do not alter the same CAN-bus packet addressing.\u003c\/p\u003e\n\u003cp data-path-to-node=\"16\"\u003e⚠️ \u003cb data-path-to-node=\"16\" data-index-in-node=\"3\"\u003eAMP Research System Architecture Constraints:\u003c\/b\u003e This pass-through harness is explicitly designed for AMP Research PowerStep, PowerStep XL, and PowerStep Xtreme kits that utilize the OBD-II port for their digital door-trigger source. It \u003cb data-path-to-node=\"16\" data-index-in-node=\"237\"\u003ewill NOT interface\u003c\/b\u003e with older hardwired step systems that rely on mechanical door magnetic switches or direct analog wire-splicing.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"17\"\u003eConfirmed Fitment Matrix\u003c\/h3\u003e\n\u003cblockquote data-path-to-node=\"18\"\u003e\n\u003cp data-path-to-node=\"18,0\"\u003e\u003cb data-path-to-node=\"18,0\" data-index-in-node=\"0\"\u003eCRITICAL FITMENT NOTE:\u003c\/b\u003e This harness is mathematically and digitally pinned to interface with factory OBD-II communication networks on the specific vehicle platforms outlined below.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cdiv class=\"horizontal-scroll-wrapper\"\u003e\n\u003cdiv class=\"table-block-component\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003cdiv class=\"table-block has-export-button new-table-style has-scrollbar is-at-scroll-start\"\u003e\n\u003cdiv class=\"table-content\"\u003e\n\u003ctable data-path-to-node=\"19\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"19,0,0,0\"\u003eVehicle Make \u0026amp; Model\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"19,0,1,0\"\u003eDrivetrain Compatibility\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"19,0,2,0\"\u003eModel Years\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"19,0,3,0\"\u003eRequired Platform Specifications\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,1,0,0\"\u003e\u003cb data-path-to-node=\"19,1,0,0\" data-index-in-node=\"0\"\u003eRam 1500 (DT \/ DS Platforms)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,1,1,0\"\u003eAll Drivetrains\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,1,2,0\"\u003e2018 – 2026\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,1,3,0\"\u003eMust run OBD-driven AMP PnP Step System\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,2,0,0\"\u003e\u003cb data-path-to-node=\"19,2,0,0\" data-index-in-node=\"0\"\u003eRam 2500 \/ 3500 Heavy Duty\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,2,1,0\"\u003eAll Drivetrains\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,2,2,0\"\u003e2018 – 2026\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,2,3,0\"\u003eMust run OBD-driven AMP PnP Step System\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,3,0,0\"\u003e\u003cb data-path-to-node=\"19,3,0,0\" data-index-in-node=\"0\"\u003eToyota Tundra\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,3,1,0\"\u003eAll Drivetrains\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,3,2,0\"\u003e2018 – 2026\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,3,3,0\"\u003eMust run OBD-driven AMP PnP Step System\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,4,0,0\"\u003e\u003cb data-path-to-node=\"19,4,0,0\" data-index-in-node=\"0\"\u003eToyota Tacoma\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,4,1,0\"\u003eAll Drivetrains\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,4,2,0\"\u003e2018 – 2026\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"19,4,3,0\"\u003eMust run OBD-driven AMP PnP Step System\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-footer hide-from-message-actions\"\u003e\n\u003c!----\u003e\u003cbutton class=\"mdc-icon-button mat-mdc-icon-button mat-mdc-button-base mat-badge mat-unthemed mat-badge-overlap mat-badge-above mat-badge-after mat-badge-small mat-badge-hidden ng-star-inserted\" aria-label=\"More options\"\u003e\u003cspan class=\"mat-mdc-button-persistent-ripple mdc-icon-button__ripple\"\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003cspan class=\"mat-focus-indicator\"\u003e\u003c\/span\u003e\u003cspan class=\"mat-mdc-button-touch-target\"\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-path-to-node=\"20\"\u003e\u003cb data-path-to-node=\"20\" data-index-in-node=\"0\"\u003e❌ This Unit Does NOT Fit:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"21\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"21,0,0\"\u003e\u003cb data-path-to-node=\"21,0,0\" data-index-in-node=\"0\"\u003e2017 or Older Ram Platforms:\u003c\/b\u003e Digital communication architectures and physical pinning layouts under the dash do not align.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"21,1,0\"\u003e\u003cb data-path-to-node=\"21,1,0\" data-index-in-node=\"0\"\u003eNon-OBD PowerStep Kits:\u003c\/b\u003e Will not function on alternative brand automatic steps or manual hardwired AMP kits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"22\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv class=\"horizontal-scroll-wrapper\"\u003e\n\u003cdiv class=\"table-block-component\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003cdiv class=\"table-block has-export-button new-table-style is-at-scroll-start is-at-scroll-end\"\u003e\n\u003cdiv class=\"table-content\"\u003e\n\u003ctable data-path-to-node=\"23\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"23,0,0,0\"\u003eSpec\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"23,0,1,0\"\u003eDetail\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,1,0,0\"\u003e\u003cb data-path-to-node=\"23,1,0,0\" data-index-in-node=\"0\"\u003eSKU\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,1,1,0\"\u003e76405-01A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,2,0,0\"\u003e\u003cb data-path-to-node=\"23,2,0,0\" data-index-in-node=\"0\"\u003eBrand\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,2,1,0\"\u003eAMP Research\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,3,0,0\"\u003e\u003cb data-path-to-node=\"23,3,0,0\" data-index-in-node=\"0\"\u003ePlatform Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,3,1,0\"\u003e2018–2026 Ram \u0026amp; Toyota Tundra \/ Tacoma Applications\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,4,0,0\"\u003e\u003cb data-path-to-node=\"23,4,0,0\" data-index-in-node=\"0\"\u003eInterface Style\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,4,1,0\"\u003ePass-Thru OBD Dual-Port Splitter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,5,0,0\"\u003e\u003cb data-path-to-node=\"23,5,0,0\" data-index-in-node=\"0\"\u003eConnector Engineering\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,5,1,0\"\u003eOEM-Grade Vibration-Resistant Sealed Composite\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,6,0,0\"\u003e\u003cb data-path-to-node=\"23,6,0,0\" data-index-in-node=\"0\"\u003eInstallation Method\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,6,1,0\"\u003e100% Plug-N-Play (Zero Wire Cutting, Splicing, or Pin Swapping)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,7,0,0\"\u003e\u003cb data-path-to-node=\"23,7,0,0\" data-index-in-node=\"0\"\u003eData Throughput\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,7,1,0\"\u003eFull High-Speed CAN-bus Diagnostic Protocol Active\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,8,0,0\"\u003e\u003cb data-path-to-node=\"23,8,0,0\" data-index-in-node=\"0\"\u003eSystem Weight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,8,1,0\"\u003e0.38 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,9,0,0\"\u003e\u003cb data-path-to-node=\"23,9,0,0\" data-index-in-node=\"0\"\u003eCompatible Assemblies\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,9,1,0\"\u003ePowerStep, PowerStep XL, PowerStep Xtreme (Plug-N-Play Series)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-footer hide-from-message-actions\"\u003e\n\u003c!----\u003e\u003cbutton class=\"mdc-icon-button mat-mdc-icon-button mat-mdc-button-base mat-badge mat-unthemed mat-badge-overlap mat-badge-above mat-badge-after mat-badge-small mat-badge-hidden ng-star-inserted\" aria-label=\"More options\"\u003e\u003cspan class=\"mat-mdc-button-persistent-ripple mdc-icon-button__ripple\"\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003cspan class=\"mat-focus-indicator\"\u003e\u003c\/span\u003e\u003cspan class=\"mat-mdc-button-touch-target\"\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-path-to-node=\"24\"\u003eBefore You Order — 4 Fitment Checkpoints\u003c\/h3\u003e\n\u003cp data-path-to-node=\"25\"\u003eVehicle electrical additions require absolute platform validation. Review these four checkmarks before clicking checkout:\u003c\/p\u003e\n\u003col start=\"1\" data-path-to-node=\"26\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"26,0,0\"\u003e\u003cb data-path-to-node=\"26,0,0\" data-index-in-node=\"0\"\u003eStep Trigger Verification:\u003c\/b\u003e Confirm your existing or incoming AMP PowerStep kit utilizes the OBD port connection. If your step kit hardwires directly into the cab pillars, you do not need this harness.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"26,1,0\"\u003e\u003cb data-path-to-node=\"26,1,0\" data-index-in-node=\"0\"\u003eModel Year Verification:\u003c\/b\u003e Ensure your Ram or Toyota falls strictly within the 2018–2026 window to guarantee correct digital module handshake compatibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"26,2,0\"\u003e\u003cb data-path-to-node=\"26,2,0\" data-index-in-node=\"0\"\u003eUnder-Dash Clearance:\u003c\/b\u003e Inspect your factory OBD port location. Ensure you do not have aftermarket lower dash panels, custom knee airbags brackets, or center console modifications that physically obstruct a secondary connector seating profile.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"26,3,0\"\u003e\u003cb data-path-to-node=\"26,3,0\" data-index-in-node=\"0\"\u003eNo T-Taps Rule:\u003c\/b\u003e Verify your electrical build path. Never use Scotchlocks or T-taps in conjunction with this communication harness, as loose vibrations will cause digital signal flicker and permanent fault codes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-path-to-node=\"27\"\u003eProfessional Installation \u0026amp; Mechanical Notes\u003c\/h3\u003e\n\u003cul data-path-to-node=\"28\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"28,0,0\"\u003e\u003cb data-path-to-node=\"28,0,0\" data-index-in-node=\"0\"\u003eLock Engagement Audit:\u003c\/b\u003e \u003ci data-path-to-node=\"28,0,0\" data-index-in-node=\"23\"\u003ePro Tip:\u003c\/i\u003e When plugging the 76405-01A into your factory under-dash OBD port, push until you hear a distinct mechanical click. Verify the secondary lock engagement tab is completely seated before routing the auxiliary port or powering up your main step controller module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"28,1,0\"\u003e\u003cb data-path-to-node=\"28,1,0\" data-index-in-node=\"0\"\u003eHarness Stress Relief:\u003c\/b\u003e Secure the body of the pass-through harness to nearby factory under-dash structural bracing using heavy-duty zip ties. Leaving the splitter harness dangling freely puts continuous leverage on your factory OBD pins, which can cause connection fatigue over rough off-road washboards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"28,2,0\"\u003e\u003cb data-path-to-node=\"28,2,0\" data-index-in-node=\"0\"\u003ePin Protection:\u003c\/b\u003e Keep the newly exposed secondary port clear of direct moisture or dirt accumulation during deep floor mat cleanings. A drop of dielectric grease on the housing shell can help seal the interface in high-humidity regional zones.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote data-path-to-node=\"29\"\u003e\n\u003cp data-path-to-node=\"29,0\"\u003e\u003cb data-path-to-node=\"29,0\" data-index-in-node=\"0\"\u003eAMP RESEARCH POLICY NOTE:\u003c\/b\u003e Because this component integrates directly into a vehicle's digital diagnostic bus network, once the harness has been plugged into an active OBD-II port and powered, the unit is non-returnable per manufacturer safety policies.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch3 data-path-to-node=\"31\"\u003eQuestions We Get Asked\u003c\/h3\u003e\n\u003cp data-path-to-node=\"32\"\u003e\u003cb data-path-to-node=\"32\" data-index-in-node=\"0\"\u003eCan I run a custom engine tuner and my AMP PowerSteps at the same time with this harness?\u003c\/b\u003e Yes. That is exactly what the 76405-01A is engineered to do. It splits the factory OBD-II port, allowing your step controller to pull door-open data while leaving the second port open to power custom tuners, digital accessory gauges, or secondary diagnostic tools.\u003c\/p\u003e\n\u003cp data-path-to-node=\"33\"\u003e\u003cb data-path-to-node=\"33\" data-index-in-node=\"0\"\u003eDoes installing this pass-through harness void my truck's factory warranty?\u003c\/b\u003e No. Because this harness is a 100% plug-and-play assembly that plugs directly into your existing diagnostic port without cutting, splicing, or pinning into the factory wiring loom, it does not void your vehicle's factory warranty.\u003c\/p\u003e\n\u003cp data-path-to-node=\"34\"\u003e\u003cb data-path-to-node=\"34\" data-index-in-node=\"0\"\u003eWill this harness work with automatic steps from brands other than AMP Research?\u003c\/b\u003e This harness is pinned and mapped out specifically for the data communication pathways and connector shapes used by AMP Research PowerStep, XL, and Xtreme Plug-N-Play controllers. It is not guaranteed to clear or interface properly with competitor systems.\u003c\/p\u003e\n\u003cp data-path-to-node=\"35\"\u003e\u003cb data-path-to-node=\"35\" data-index-in-node=\"0\"\u003eIs any programming required after plugging this harness into my Ram or Toyota?\u003c\/b\u003e No programming or electronic flashing is needed. The harness acts as a passive hardware splitter for the diagnostic port data lines, making it functional the second it is clipped into place.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"37\"\u003eWhy Buy From Obsidian Forged Auto Supply\u003c\/h3\u003e\n\u003cul data-path-to-node=\"38\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"38,0,0\"\u003e\u003cb data-path-to-node=\"38,0,0\" data-index-in-node=\"0\"\u003eAuthorized AMP Research Dealer\u003c\/b\u003e — Full factory-backed manufacturer warranty protection with factory-direct logistics tracking.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"38,1,0\"\u003e\u003cb data-path-to-node=\"38,1,0\" data-index-in-node=\"0\"\u003eFree Shipping, Lower 48\u003c\/b\u003e — Rapid standard parcel ground delivery directly from our closest regional warehouse.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"38,2,0\"\u003e\u003cb data-path-to-node=\"38,2,0\" data-index-in-node=\"0\"\u003eReal Fitment Verification\u003c\/b\u003e — Text \u003cb data-path-to-node=\"38,2,0\" data-index-in-node=\"33\"\u003e(469) 407-7538\u003c\/b\u003e (SMS only) with your vehicle’s VIN and your current AMP PowerStep part number. An Obsidian specialist will audit your factory build parameters to ensure a 100% accurate electrical fit before shipping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"38,3,0\"\u003e\u003cb data-path-to-node=\"38,3,0\" data-index-in-node=\"0\"\u003ePremium Financing Available\u003c\/b\u003e — Safe, instant checkout flexibility via Affirm and Afterpay.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"40\"\u003eDisclaimer\u003c\/h3\u003e\n\u003cblockquote data-path-to-node=\"41\"\u003e\n\u003cp data-path-to-node=\"41,0\"\u003e\u003ci data-path-to-node=\"41,0\" data-index-in-node=\"0\"\u003eThe technical and product information presented above is compiled from data provided directly by the component manufacturer. Obsidian Forged Auto Supply maintains a rigorous engineering audit workflow to ensure vehicle fitment compatibility; however, we are not responsible or liable for sudden manufacturer-driven specification updates, raw metadata changes, or accuracy discrepancies in the foundational data sheets provided by the manufacturer.\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp data-path-to-node=\"43\"\u003e2018–2026 Ram \u0026amp; Toyota Tundra \/ Tacoma. AMP OBD Pass-Thru Harness. Keep your diagnostics open. \u003cb data-path-to-node=\"43\" data-index-in-node=\"95\"\u003eAdd to cart.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"44\"\u003e\u003ci data-path-to-node=\"44\" data-index-in-node=\"0\"\u003eUnsure if your digital tuner or custom dash accessory will clear this dual-port pass-through connector path? Text your vehicle setup to \u003cb data-path-to-node=\"44\" data-index-in-node=\"136\"\u003e(469) 407-7538\u003c\/b\u003e and an Obsidian technician will verify it.\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\n\u003c\/div\u003e","brand":"AMP Research","offers":[{"title":"Default Title","offer_id":51447960895809,"sku":"76405-01A","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/76405-01A.png?v=1772809677","url":"https:\/\/obsidianforgedautosupply.com\/products\/amp-research-pass-thru-obd-harness-76405-01a-ram-toyota","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}