{"product_id":"konnwei-kw901-tradlos-obd2-scanner-bt5-0-elm327-v1-5","title":"KONNWEI KW901 – Bluetooth OBD2 Adapter (ELM327 25K80) for Diagnostics, Data Stream \u0026 I\/M Readiness","description":"\u003c!-- KLAR HTML FÖR SHOPIFY – felkodslasare.se --\u003e\n\u003csection itemtype=\"https:\/\/schema.org\/Product\" itemscope=\"\" id=\"kw901\"\u003e\u003cmeta content=\"KONNWEI KW901 – Bluetooth OBD2 Adapter (ELM327 25K80) with Data Stream \u0026amp; I\/M\" itemprop=\"name\"\u003e \u003cmeta content=\"KONNWEI\" itemprop=\"brand\"\u003e \u003cmeta content=\"KW901\" itemprop=\"mpn\"\u003e \u003cmeta content=\"KW901-BT50\" itemprop=\"sku\"\u003e \u003cmeta content=\"OBD2, Fault Code Reader, Bluetooth Adapter, ELM327, Car Tool\" itemprop=\"category\"\u003e \u003clink href=\"https:\/\/www.felkodslasare.se\/\" itemprop=\"url\"\u003e\n\u003ch2\u003eKONNWEI KW901 – Bluetooth OBD2 Adapter (ELM327 25K80) for Diagnostics, Data Stream \u0026amp; I\/M Readiness\u003c\/h2\u003e\n\u003c!-- KORTVERSION 200–300 ORD --\u003e\n\u003csection itemprop=\"description\" id=\"kortversion\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eKONNWEI KW901\u003c\/strong\u003e is a compact and low-power \u003cstrong\u003eBluetooth OBD2 adapter\u003c\/strong\u003e that transforms your \u003cstrong\u003eiOS\/Android\u003c\/strong\u003e mobile or tablet into a powerful \u003cstrong\u003efault code reader\u003c\/strong\u003e and \u003cstrong\u003ereal-time monitor\u003c\/strong\u003e. With stable connectivity via \u003cstrong\u003eBluetooth 5.0\u003c\/strong\u003e (backward compatible) and the proven \u003cstrong\u003eELM327 25K80 platform\u003c\/strong\u003e, you can read\/clear engine fault codes (MIL), check \u003cstrong\u003eI\/M Readiness\u003c\/strong\u003e before inspection, and monitor a range of important sensors in real-time such as \u003cem\u003eRPM, speed, coolant temperature, lambda\/O2 sensor data, intake manifold pressure, load, MAF\u003c\/em\u003e, and much more.\u003c\/p\u003e\n\u003cp\u003eThe adapter supports all \u003cstrong\u003eOBD-II\/EOBD protocols\u003c\/strong\u003e including \u003cem\u003eCAN, ISO9141-2, KWP2000, SAE J1850 PWM\/VPW\u003c\/em\u003e and works on OBD2-compatible gasoline and diesel cars (12 V). Thanks to its automatic sleep mode function, the KW901 draws minimal power when the car is off, and its small size allows it to remain plugged in without being in the way.\u003c\/p\u003e\n\u003cp\u003eThe KW901 is perfect for those who want to \u003cstrong\u003ediagnose \"Check Engine\"\u003c\/strong\u003e, analyze \u003cstrong\u003elive data\u003c\/strong\u003e, create \u003cstrong\u003elogs\/reports\u003c\/strong\u003e, and track consumption\/trim values. Want to see more readers and accessories? Visit our collection of \u003ca href=\"https:\/\/www.felkodslasare.se\/collections\/felkodslasare-1\"\u003efault code readers\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- INNEHÅLL --\u003e\u003cnav id=\"toc\"\u003e\n\u003ch2\u003eTable of Contents\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"#introduktion\"\u003eIntroduction – What the KW901 Is and Does\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specifikationer\"\u003eSpecifications (bullet list)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#funktioner\"\u003eFeatures \u0026amp; Use Cases\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#protokoll\"\u003eProtocols \u0026amp; Compatibility\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#manual\"\u003eManual \/ Installation Guide (iOS \u0026amp; Android)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#im-readiness\"\u003eI\/M Readiness \u0026amp; Inspection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#datasensorer\"\u003eData Streams \u0026amp; Sensors – Examples\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#felsokning\"\u003eTroubleshooting \u0026amp; Frequently Asked Questions (FAQ)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tips\"\u003eTips \u0026amp; Best Practices\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#forpackning\"\u003ePackage Contents\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#notiser\"\u003eImportant Notices \u0026amp; Disclaimer\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#seo\"\u003eSEO Keywords (hidden)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#sammanfattning\"\u003eSummary\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/nav\u003e\u003c!-- INTRODUKTION --\u003e\n\u003csection id=\"introduktion\"\u003e\n\u003ch2\u003eIntroduction – What the KW901 Is and Does\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eKONNWEI KW901\u003c\/strong\u003e connects your smartphone\/tablet to the car's control unit via the OBD2 port (16-pin). Through a compatible OBD app, you can immediately read engine-related faults (\u003cstrong\u003eDTC\u003c\/strong\u003e), clear fault codes after action, and \u003cstrong\u003evisualize live data\u003c\/strong\u003e in list or graph view. The adapter supports \u003cstrong\u003eI\/M Readiness\u003c\/strong\u003e, allowing you to check that monitoring systems are \"Ready\" before inspection.\u003c\/p\u003e\n\u003cp\u003eThe integrated \u003cstrong\u003eELM327 25K80\u003c\/strong\u003e solution provides fast and reliable communication. The KW901 works with older protocols (ISO9141-2\/KWP2000\/SAE J1850) as well as modern \u003cstrong\u003eCAN buses\u003c\/strong\u003e. With \u003cstrong\u003eBluetooth 5.0\u003c\/strong\u003e (classic\/BLE), you get a stable connection with low power consumption, and automatic \u003cstrong\u003esleep-mode\u003c\/strong\u003e that protects the car's battery when the car is turned off.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- SPECIFIKATIONER --\u003e\n\u003csection id=\"specifikationer\"\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KONNWEI KW901\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipset:\u003c\/strong\u003e ELM327-compatible base with \u003cstrong\u003e25K80\u003c\/strong\u003e controller (high compatibility\/stability)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Bluetooth 5.0 (supports iOS\/Android; backward compatible with 4.x)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e up to approx. 10 m (line of sight)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 12 V via OBD port (auto sleep mode after inactivity)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e approx. 0.75 W (with power switch\/auto-sleep)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temp.:\u003c\/strong\u003e −20 °C to +70 °C (storage −40 °C to +125 °C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 70 × 32 × 30.5 mm (≈ 2.75″ × 1.25″ × 1.2″)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ABS, automotive-grade plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED\/Indication:\u003c\/strong\u003e Status\/Communication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol Support:\u003c\/strong\u003e ISO9141-2, ISO14230-4 (KWP 5-baud\/fast), ISO15765-4 (CAN 11\/29-bit, 250\/500 kbit\/s), SAE J1850 (PWM\/VPW), SAE J1939, USER1\/USER2 (CAN user speeds)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Platforms:\u003c\/strong\u003e iOS \u0026amp; Android (supported in popular OBD apps)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-App Functions:\u003c\/strong\u003e Read\/clear DTC, I\/M Readiness, live data (PID), freeze frame, sensor graphs, log\/export, warning light reset (MIL)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColors:\u003c\/strong\u003e Black \/ Black-Orange \/ Black-Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12 months\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- FUNKTIONER --\u003e\n\u003csection id=\"funktioner\"\u003e\n\u003ch2\u003eFeatures \u0026amp; Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnose \"Check Engine\" (MIL):\u003c\/strong\u003e Read both generic (\u003cem\u003eP0\u003c\/em\u003e) and manufacturer-specific (\u003cem\u003eP1\u003c\/em\u003e) codes, get descriptions, and clear after remedy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/M Readiness:\u003c\/strong\u003e Quick check of emission monitors (e.g., \u003cem\u003eO2, CAT, EVAP, EGR\u003c\/em\u003e) before inspection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLive data stream:\u003c\/strong\u003e Monitor RPM, speed, coolant temp, MAP\/MAF, load, ignition advance, fuel trims, etc., in real-time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreeze frame:\u003c\/strong\u003e Capture sensor data from the moment the fault code was set – ideal for intermittent faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLog \u0026amp; export:\u003c\/strong\u003e Record driving data, save reports for comparison before\/after repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote monitoring:\u003c\/strong\u003e Allow workshops\/customers to share data\/reports for faster troubleshooting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse cases:\u003c\/strong\u003e Pre-inspection, troubleshooting idle\/jerking, lambda\/trim check, thermostat diagnosis, air leak indicator (MAP\/MAF), fuel pressure sensor via OBD, and more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- PROTOKOLL \u0026 KOMPATIBILITET --\u003e\n\u003csection id=\"protokoll\"\u003e\n\u003ch2\u003eProtocols \u0026amp; Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe KW901 is designed for \u003cstrong\u003eOBD2\/EOBD-compatible 12V vehicles\u003c\/strong\u003e. General guidelines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSA:\u003c\/strong\u003e Cars\/light trucks from \u003cstrong\u003e1996→\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEU:\u003c\/strong\u003e Gasoline typically \u003cstrong\u003e2001→\u003c\/strong\u003e, Diesel typically \u003cstrong\u003e2004→\u003c\/strong\u003e (EOBD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOthers:\u003c\/strong\u003e Varies – check \"Vehicle Emission Control Information\" label and OBD2 port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote:\u003c\/em\u003e 24V heavy vehicles are not supported. Some \u003cstrong\u003eJOBD\u003c\/strong\u003e (Japanese variants) may have limitations. For advanced brand-specific systems (ABS\/SRS\/EPB, etc.), a full-system scanner is recommended. Explore more options in our \u003ca href=\"https:\/\/www.felkodslasare.se\/collections\/felkodslasare-1\"\u003efault code reader collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- MANUAL \/ INSTALLATIONSGUIDE --\u003e\n\u003csection id=\"manual\"\u003e\n\u003ch2\u003eManual \/ Installation Guide (iOS \u0026amp; Android)\u003c\/h2\u003e\n\u003ch3\u003ePreparation\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePark safely. Turn \u003cstrong\u003eoff\u003c\/strong\u003e the ignition.\u003c\/li\u003e\n\u003cli\u003eLocate the \u003cstrong\u003eOBD2 port\u003c\/strong\u003e (usually under the dashboard on the driver's side).\u003c\/li\u003e\n\u003cli\u003eInsert the \u003cstrong\u003eKW901\u003c\/strong\u003e into the port. Ensure the connection is fully seated.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eStep A – Pairing\u003c\/h3\u003e\n\u003cdiv class=\"grid\"\u003e\n\u003cdiv\u003e\n\u003ch4\u003eAndroid\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eStart the car (ignition \u003cem\u003eON\u003c\/em\u003e, engine can be off if the app allows).\u003c\/li\u003e\n\u003cli\u003eEnable \u003cstrong\u003eBluetooth\u003c\/strong\u003e on your phone.\u003c\/li\u003e\n\u003cli\u003eOpen your phone's \u003cstrong\u003eBluetooth settings\u003c\/strong\u003e and select a device named e.g., \u003cem\u003eOBDII \/ KW901 \/ V-LINK\u003c\/em\u003e.\u003c\/li\u003e\n\u003cli\u003eConfirm pairing (PIN rarely required – otherwise use \u003cem\u003e1234\u003c\/em\u003e or \u003cem\u003e0000\u003c\/em\u003e).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch4\u003eiOS (iPhone\/iPad)\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eStart the car (ignition \u003cem\u003eON\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003eOpen the \u003cstrong\u003eApp's\u003c\/strong\u003e own connection menu (many iOS apps connect BLE directly within the app, not via the iOS Bluetooth list).\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eAdapter Type = ELM327\/BLE\u003c\/strong\u003e and connect to \u003cem\u003eKW901\/OBDII\u003c\/em\u003e that appears in the app's list.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eStep B – App Configuration (General)\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eSelect \u003cstrong\u003eAdapter Type:\u003c\/strong\u003e ELM327.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eConnection:\u003c\/strong\u003e Bluetooth\/BLE.\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eProtocol:\u003c\/strong\u003e Auto (the app\/adapter usually identifies the correct protocol).\u003c\/li\u003e\n\u003cli\u003ePress \u003cstrong\u003eConnect\u003c\/strong\u003e – wait until the status shows connected and PIDs start flowing in.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eQuick Start – Reading \u0026amp; Clearing Fault Codes\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eOpen the \u003cstrong\u003eDTC\/Check Engine\u003c\/strong\u003e tab in the app.\u003c\/li\u003e\n\u003cli\u003ePress \u003cstrong\u003eRead\/Scan\u003c\/strong\u003e to retrieve fault codes.\u003c\/li\u003e\n\u003cli\u003eNote codes \u0026amp; descriptions (e.g., \u003cem\u003eP0420 Cat efficiency\u003c\/em\u003e).\u003c\/li\u003e\n\u003cli\u003eAddress the cause. Then clear codes with \u003cstrong\u003eClear\u003c\/strong\u003e (ignition on, engine off, if the app requires).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eQuick Start – I\/M Readiness\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eOpen the \u003cstrong\u003eI\/M\u003c\/strong\u003e (Readiness\/Monitors) tab.\u003c\/li\u003e\n\u003cli\u003eVerify that critical monitors are \u003cstrong\u003eReady\u003c\/strong\u003e (green). If \u003cem\u003eNot Ready\u003c\/em\u003e – perform the recommended drive cycle according to the car model.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eQuick Start – Live Data \u0026amp; Logging\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eSelect \u003cstrong\u003eLive Data\/Realtime\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSelect desired \u003cstrong\u003ePIDs\u003c\/strong\u003e (e.g., RPM, ECT, STFT\/LTFT, O2, MAP\/MAF, VSS).\u003c\/li\u003e\n\u003cli\u003eSwitch to \u003cstrong\u003egraph view\u003c\/strong\u003e to see trends and relationships.\u003c\/li\u003e\n\u003cli\u003eStart \u003cstrong\u003elogging\u003c\/strong\u003e to save a drive (perfect for road tests and intermittent faults).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSafe Removal\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eClose the app's connection (Disconnect).\u003c\/li\u003e\n\u003cli\u003eTurn off the ignition and carefully pull out the KW901.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/section\u003e\n\u003c!-- I\/M READINESS --\u003e\n\u003csection id=\"im-readiness\"\u003e\n\u003ch2\u003eI\/M Readiness \u0026amp; Inspection\u003c\/h2\u003e\n\u003cp\u003eI\/M Readiness indicates whether the car's emission-related self-tests (monitors) have been completed after code clearing or battery replacement. Typical monitors: \u003cem\u003eMisfire, Fuel System, Comprehensive, O2, Catalyst, EVAP, EGR\u003c\/em\u003e. If any are \u003cstrong\u003eNot Ready\u003c\/strong\u003e, the car may fail the emissions test. Use the KW901 to check the status and perform the vehicle's recommended drive cycle until everything is \u003cstrong\u003eReady\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- DATA \u0026 SENSORER --\u003e\n\u003csection id=\"datasensorer\"\u003e\n\u003ch2\u003eData Streams \u0026amp; Sensors – Examples \u0026amp; Interpretation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eECT – Coolant Temp:\u003c\/strong\u003e 85–95 °C during normal operation; slow warm-up may indicate a faulty thermostat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTFT\/LTFT – Fuel Trims:\u003c\/strong\u003e Normal ±5–10 %; large positive values → lean mixture (air leak\/MAF), negative → rich mixture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eO2 Sensors\/Lambda:\u003c\/strong\u003e Pre-cat should fluctuate; post-cat more stable. P0420\/P0430 indicates catalytic converter\/exhaust leak\/sensor problem.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMAP\/MAF:\u003c\/strong\u003e Indicates airflow; deviating values can point to leaks\/dirty MAF.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Advance:\u003c\/strong\u003e Expected increase with RPM\/load; illogical behavior may indicate a sensor fault.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEVAP Pressure:\u003c\/strong\u003e Used to locate vapor leaks (small EVAP leaks often cause sporadic fault codes).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- FELSÖKNING \u0026 FAQ --\u003e\n\u003csection id=\"felsokning\"\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; Frequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003ch3\u003eAdapter not found on phone\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCheck that the \u003cstrong\u003eignition is on\u003c\/strong\u003e and the KW901's LED is blinking.\u003c\/li\u003e\n\u003cli\u003eOn iOS: go via the \u003cstrong\u003eapp's\u003c\/strong\u003e own connection screen (BLE), not the iOS Bluetooth list.\u003c\/li\u003e\n\u003cli\u003eAirplane mode off, Bluetooth enabled. Try restarting the app\/phone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApp connects but no data displayed\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelect \u003cstrong\u003eProtocol = Auto\u003c\/strong\u003e or the correct specific protocol in the app's settings.\u003c\/li\u003e\n\u003cli\u003eStart the engine if the app requires it for live data.\u003c\/li\u003e\n\u003cli\u003eCheck that other apps are not connected simultaneously (one adapter, one app at a time).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCan the KW901 clear all lights?\u003c\/h3\u003e\n\u003cp\u003eThe KW901 handles \u003cstrong\u003eengine\/MIL\u003c\/strong\u003e via OBD2. ABS\/SRS\/service and others are brand-specific systems that require a full-system scanner.\u003c\/p\u003e\n\u003ch3\u003eDoes it work on diesel?\u003c\/h3\u003e\n\u003cp\u003eYes, if the vehicle is \u003cstrong\u003eOBD2-compatible\u003c\/strong\u003e (in EU typically 2004→). Some older diesels lack full OBD2 support.\u003c\/p\u003e\n\u003ch3\u003eDoes it drain power if left plugged in constantly?\u003c\/h3\u003e\n\u003cp\u003eThe KW901 has \u003cstrong\u003eauto-sleep\u003c\/strong\u003e. Power consumption in standby is very low, but we recommend removing the adapter during long-term parking.\u003c\/p\u003e\n\u003ch3\u003eWhich app should I use?\u003c\/h3\u003e\n\u003cp\u003eThe adapter works with common OBD apps (ELM327-compatible). Choose an app based on your needs (code reading, gauges, logging). No external links are required.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- TIPS --\u003e\n\u003csection id=\"tips\"\u003e\n\u003ch2\u003eTips \u0026amp; Best Practices\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLog before\/after:\u003c\/strong\u003e Record data before and after repair to confirm the remedy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor pairs:\u003c\/strong\u003e Compare pre- and post-cat O2 for catalytic converter diagnosis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum index:\u003c\/strong\u003e MAP\/MAF\/trim together reveal leaks in the intake system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreeze frame:\u003c\/strong\u003e Analyze freeze frame to understand \u003cem\u003ewhen\u003c\/em\u003e the fault occurred (RPM, load, temp).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspection:\u003c\/strong\u003e Check I\/M before booking; perform drive cycle if monitors are not ready.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplement your toolbox:\u003c\/strong\u003e See more OBD tools at \u003ca href=\"https:\/\/www.felkodslasare.se\/collections\/felkodslasare-1\"\u003efault code readers\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- FÖRPACKNING --\u003e\n\u003csection id=\"forpackning\"\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × KONNWEI KW901 Bluetooth OBD2 Adapter\u003c\/li\u003e\n\u003cli\u003e1 × User Manual (English)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- NOTISER --\u003e\n\u003csection id=\"notiser\"\u003e\n\u003ch2\u003eImportant Notices \u0026amp; Disclaimer\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOBD Scope:\u003c\/strong\u003e KW901 covers engine\/emissions via OBD2. Brand-specific control systems (ABS\/SRS\/EPB\/Service) require dedicated tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Contact us if you are unsure about OBD2 support. Some work vehicles\/Japanese models (JOBD) may have limitations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e Always use the KW901 in a safe location. Eyes on the road – prefer logging rather than looking at your phone while driving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e Auto-sleep minimizes consumption, but it's advisable to remove the adapter during longer periods of inactivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Laws:\u003c\/strong\u003e Clearing fault codes without addressing the root cause can temporarily hide problems. Always fix the source of the fault.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo external links:\u003c\/strong\u003e This page only links internally to felkodslasare.se.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- SEO (DOLT) --\u003e\n\u003csection style=\"display: none;\" id=\"seo\"\u003eKW901, KONNWEI KW901, ELM327 25K80, OBD2 Bluetooth adapter, fault code reader iOS Android, I\/M Readiness, data stream, live data OBD, O2 sensor, EVAP, freeze frame, J1850 PWM VPW, ISO9141-2, KWP2000, CAN 11\/29-bit, car scanner, felkodslasare.se, fault code reader, car scanner, elm327 Swedish manual, OBD-app, diagnostics engine MIL.\u003c\/section\u003e\n\u003c!-- SAMMANFATTNING --\u003e\n\u003csection id=\"sammanfattning\"\u003e\n\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eKONNWEI KW901\u003c\/strong\u003e is a \u003cstrong\u003esleek, affordable, and reliable\u003c\/strong\u003e Bluetooth OBD2 adapter that provides \u003cstrong\u003efault code reading\u003c\/strong\u003e, \u003cstrong\u003eI\/M checks\u003c\/strong\u003e, and \u003cstrong\u003ereal-time data\u003c\/strong\u003e in a pocket-sized format. The modern 25K80 platform, automatic protocol selection, and low standby current make it an excellent choice for both \u003cstrong\u003eDIY mechanics\u003c\/strong\u003e and \u003cstrong\u003eworkshops\u003c\/strong\u003e. Need more options? Check out our collection of \u003ca href=\"https:\/\/www.felkodslasare.se\/collections\/felkodslasare-1\"\u003efault code readers\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/section\u003e","brand":"Konnwei","offers":[{"title":"Default Title","offer_id":54177157513484,"sku":"FEL-KW901","price":18.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/4979\/6876\/files\/konnwei-kw901-bluetooth-obd2-adapter-elm327-25k80-for-felsokning-datastream-im-readiness-3110934.jpg?v=1771872505","url":"https:\/\/www.felkodslasare.se\/en-en\/products\/konnwei-kw901-tradlos-obd2-scanner-bt5-0-elm327-v1-5","provider":"Felkodsläsare","version":"1.0","type":"link"}