{"product_id":"konnwei-kw850-obd2-diagnosverktyg","title":"KONNWEI KW850 OBD2 12V – Engine fault code reader \u0026 EVAP diagnosis with I\/M-readiness and live data","description":"\u003c!-- KLAR HTML FÖR SHOPIFY – KONNWEI KW850 OBD2 12V Automotive Car ECU Trouble Scanner \/ felkodslasare.se --\u003e\n\u003csection itemtype=\"https:\/\/schema.org\/Product\" itemscope=\"\" id=\"konnwei-kw850\"\u003e\u003cmeta itemprop=\"name\" content=\"KONNWEI KW850 – OBD2\/EOBD Engine Diagnostics \u0026amp; Check Engine Reader (12V Petrol\/Diesel\/Hybrid)\"\u003e \u003cmeta itemprop=\"brand\" content=\"KONNWEI\"\u003e \u003cmeta itemprop=\"sku\" content=\"KW850\"\u003e \u003cmeta itemprop=\"mpn\" content=\"KW850\"\u003e \u003cmeta itemprop=\"category\" content=\"Fault Code Readers, OBD2, EOBD, Vehicle Diagnostics\"\u003e \u003clink itemprop=\"url\" href=\"https:\/\/www.felkodslasare.se\/\"\u003e\n\u003ch2\u003eKONNWEI KW850 OBD2 12V – Engine Fault Code Reader \u0026amp; EVAP Diagnostics with I\/M Readiness and Live Data\u003c\/h2\u003e\n\u003c!-- KORTVERSION (200–300 ord) --\u003e\n\u003cdiv itemprop=\"description\" id=\"kortversion\"\u003e\n\u003ch2\u003eShort Version – Quick Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eKONNWEI KW850\u003c\/strong\u003e is a powerful \u003cstrong\u003eOBD2\/EOBD fault code reader\u003c\/strong\u003e for \u003cstrong\u003e12V petrol, diesel, and many hybrid cars\u003c\/strong\u003e. It reads and clears \u003cstrong\u003eengine-related diagnostic trouble codes (DTCs)\u003c\/strong\u003e, displays \u003cstrong\u003elive data\u003c\/strong\u003e in text and graph, checks \u003cstrong\u003eI\/M readiness\u003c\/strong\u003e (emission monitors) before inspection, handles \u003cstrong\u003eEVAP\u003c\/strong\u003e and \u003cstrong\u003eMode $06\u003c\/strong\u003e data, and retrieves \u003cstrong\u003eVIN\/CALID\/CVN\u003c\/strong\u003e. With the unique \u003cstrong\u003eOne-Click I\/M\u003c\/strong\u003e button, you can perform a quick legality check and verify the drive cycle in seconds. The KW850 features a \u003cstrong\u003e2.8” TFT color screen\u003c\/strong\u003e, built-in speaker, \u003cstrong\u003eLED indicators\u003c\/strong\u003e for status, and a large \u003cstrong\u003eDTC dictionary (\u003e3000 codes)\u003c\/strong\u003e directly on the device. It also shows \u003cstrong\u003ereal-time battery voltage\u003c\/strong\u003e to quickly pinpoint starting\/charging issues.\u003c\/p\u003e\n\u003cp\u003eThe tool works on most \u003cstrong\u003eOBD2-certified\u003c\/strong\u003e vehicles (USA 1996+, EU petrol ≈2001+, EU diesel ≈2004+). The device is updated \u003cstrong\u003efree of charge\u003c\/strong\u003e via PC and supports \u003cstrong\u003e9 languages\u003c\/strong\u003e in the menu (including English, German, French, Spanish, Polish, Russian, Portuguese, Italian, Dutch). The KW850 is a \u003cstrong\u003eplug-and-play\u003c\/strong\u003e instrument that saves both time and money by providing you with \u003cstrong\u003eclear answers\u003c\/strong\u003e before a workshop visit. For more scanners and upgrade paths – see our category \u003ca href=\"https:\/\/www.felkodslasare.se\/collections\/felkodslasare-1\"\u003efault code readers\u003c\/a\u003e. 🔧📊\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- INNEHÅLLSFÖRTECKNING --\u003e\u003cnav id=\"innehall\"\u003e\n\u003ch2\u003eContents\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"#introduktion\"\u003eIntroduction – What does the KW850 do?\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; applications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#fordelar\"\u003eAdvantages – Why choose the KW850?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#protokoll\"\u003eProtocols \u0026amp; support\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#kompatibilitet\"\u003eCompatibility – vehicles \u0026amp; region\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#manual\"\u003eManual \u0026amp; installation guide (step-by-step)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#diagnosfloden\"\u003eDiagnostic flows – typical scenarios\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=\"#faq\"\u003eFrequently Asked Questions (FAQ)\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 notes \u0026amp; responsibility\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 does the KW850 do?\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eKONNWEI KW850\u003c\/strong\u003e is a \u003cstrong\u003ehandheld OBD2\/EOBD scanner\u003c\/strong\u003e designed to give both \u003cstrong\u003ecar owners, enthusiast mechanics, and workshops\u003c\/strong\u003e a complete understanding of engine and emission-related faults. Via the standardized OBD2 port, the device communicates with the vehicle's \u003cstrong\u003eECU\u003c\/strong\u003e and provides you with \u003cstrong\u003efault codes, live data, freeze frame, EVAP data, Mode $06\u003c\/strong\u003e (on-board monitor), \u003cstrong\u003eI\/M readiness\u003c\/strong\u003e, and vehicle identification (\u003cstrong\u003eVIN\/CALID\/CVN\u003c\/strong\u003e). The built-in \u003cstrong\u003eDTC dictionary\u003c\/strong\u003e helps you understand the codes directly on the screen, and with \u003cstrong\u003eOne-Click I\/M\u003c\/strong\u003e, you can check emission status before inspection in an instant.\u003c\/p\u003e\n\u003cp\u003eUnlike mobile adapters, the KW850 requires \u003cstrong\u003eno phone or app\u003c\/strong\u003e. All functionality is in the device – including \u003cstrong\u003egraphed data curves\u003c\/strong\u003e, \u003cstrong\u003ereport storage\u003c\/strong\u003e, and the \u003cstrong\u003eability to print\u003c\/strong\u003e via PC. Its robust construction, clear color screen, and logical menu structure make diagnostics fast, predictable, and safe – whether you're troubleshooting a stubbornly lit \u003cem\u003eCheck Engine\u003c\/em\u003e light or optimizing your chances for a successful OBD inspection.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- SPECIFIKATIONER --\u003e\n\u003csection id=\"specifikationer\"\u003e\n\u003ch2\u003eSpecifications (bullet list)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e OBD2\/EOBD engine analyzer \u0026amp; fault code reader (12V vehicles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KONNWEI KW850\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 2.8” TFT HD color, with backlight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndication:\u003c\/strong\u003e Color-coded LED lights (green\/yellow\/red) + built-in speaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating time\/Reliability:\u003c\/strong\u003e Up to approx. 8000 hours (designed for long-term use)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain functions:\u003c\/strong\u003e Read\/clear DTC, live data (text \u0026amp; graph), freeze frame, I\/M readiness, Mode $06, O2 test, EVAP data, VIN\/CALID\/CVN, battery voltage monitor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDTC database:\u003c\/strong\u003e \u003e3000 generic code definitions locally\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLanguages (menu):\u003c\/strong\u003e 9 languages (EN, FR, DE, NL, ES, RU, PT, IT, PL)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate:\u003c\/strong\u003e Lifetime free updates via PC (Windows XP\/7\/8\/10)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e 16-pin OBD2\/DLC (cable included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage support:\u003c\/strong\u003e 12V OBD2\/EOBD vehicles (petrol\/diesel\/hybrid)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocols:\u003c\/strong\u003e ISO 9141, ISO 14230-4 KWP (5-baud\/fast), SAE J1850 VPW\/PWM, ISO 15765-4 CAN (11\/29 bit, 250\/500 kbit\/s)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReport:\u003c\/strong\u003e Save, playback, and print via PC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, FCC, RoHS, UKCA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColors:\u003c\/strong\u003e Black or Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarkets:\u003c\/strong\u003e North \u0026amp; South America, Europe, Africa (EOBD\/OBD2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- FUNKTIONER \u0026 ANVÄNDNING --\u003e\n\u003csection id=\"funktioner\"\u003e\n\u003ch2\u003eFeatures \u0026amp; applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFault Codes (DTC):\u003c\/strong\u003e Read\/clear stored, pending, and manufacturer-specific codes (P0\/P1\/P2\/P3\/U0\/U1).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCause Analysis:\u003c\/strong\u003e DTC dictionary directly on the device for quick interpretation, without internet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLive Data:\u003c\/strong\u003e Display and graph sensors (RPM, VSS, ECT, IAT, MAP\/MAF, O2, STFT\/LTFT, battery voltage, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreeze frame:\u003c\/strong\u003e Snapshot of sensor data when a DTC was set – perfect for intermittent faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/M Readiness:\u003c\/strong\u003e One-Click button to quickly see if emission monitors are \u003cem\u003eReady\u003c\/em\u003e before inspection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMode $06:\u003c\/strong\u003e On-board monitor results for specific components (misfire, catalyst, EVAP, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEVAP data:\u003c\/strong\u003e Basis for troubleshooting tank ventilation\/pressure leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eO2 sensors:\u003c\/strong\u003e Live O2 test and monitor results for lambda control\/catalyst status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVIN\/CALID\/CVN:\u003c\/strong\u003e ECU identifications for reporting, verification, and traceability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery voltage:\u003c\/strong\u003e Real-time measurement before\/after start – reveals weak charging or overcharging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReports:\u003c\/strong\u003e Save, playback, and print code lists, freeze frame, and live data via PC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-language:\u003c\/strong\u003e Change menu language – practical in international environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- FÖRDELAR --\u003e\n\u003csection id=\"fordelar\"\u003e\n\u003ch2\u003eAdvantages – Why choose the KW850?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-in-one without phone:\u003c\/strong\u003e Standalone handheld device – no app, no subscription.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick inspection check:\u003c\/strong\u003e One-Click I\/M shows monitor status in seconds – saves retest costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGraphed data curves:\u003c\/strong\u003e See trends and irregularities in real-time (e.g., O2, fuel trim, MAP\/MAF).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional DTC dictionary:\u003c\/strong\u003e \u003e3000 definitions locally – less guesswork, more accurate troubleshooting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust \u0026amp; clear:\u003c\/strong\u003e 2.8” color screen, LED indicators, sound – clear guidance even in bright light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime updates:\u003c\/strong\u003e Keep the tool current, at no extra cost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad vehicle support:\u003c\/strong\u003e OBD2\/EOBD on 12V – petrol, diesel, and many hybrids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-effective:\u003c\/strong\u003e Find the root of \u003cem\u003eCheck Engine\u003c\/em\u003e before a workshop visit – better decision support.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- PROTOKOLL --\u003e\n\u003csection id=\"protokoll\"\u003e\n\u003ch2\u003eProtocols \u0026amp; support\u003c\/h2\u003e\n\u003cp\u003eThe KW850 supports the most common OBD2\/EOBD protocols: \u003cstrong\u003eSAE J1850\u003c\/strong\u003e (VPW\/PWM), \u003cstrong\u003eISO 9141-2\u003c\/strong\u003e, \u003cstrong\u003eISO 14230-4 KWP\u003c\/strong\u003e (5-baud \u0026amp; fast init), and \u003cstrong\u003eISO 15765-4 CAN\u003c\/strong\u003e (11\/29-bit, 250\/500 kbit\/s). This practically covers the majority of OBD2 vehicles on the market.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- KOMPATIBILITET --\u003e\n\u003csection id=\"kompatibilitet\"\u003e\n\u003ch2\u003eCompatibility – vehicles \u0026amp; region\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eOBD2\/EOBD 12V:\u003c\/strong\u003e USA 1996+, EU petrol approx. 2001+, EU diesel approx. 2004+. Older\/special models may vary. Russian cars before 2012 (VAZ, UAZ, LADA) are usually not supported. JOBD2 (some Japanese) is not supported. For Renault\/SsangYong – contact us before purchase for advice.\u003c\/p\u003e\n\u003cp\u003eThe KW850 is primarily an \u003cstrong\u003eengine system\/emission tool\u003c\/strong\u003e. For brand\/system-specific functions (ABS\/SRS\/EPB etc.), more advanced scanners are needed. See more options in our category \u003ca href=\"https:\/\/www.felkodslasare.se\/collections\/felkodslasare-1\"\u003efault code readers\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- MANUAL \u0026 INSTALLATION --\u003e\n\u003csection id=\"manual\"\u003e\n\u003ch2\u003eManual \u0026amp; installation guide (step-by-step)\u003c\/h2\u003e\n\u003ch3\u003eA. Preparations\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePark safely, engage the parking brake. Turn off the engine, but the ignition can be \u003cem\u003eOFF\u003c\/em\u003e initially.\u003c\/li\u003e\n\u003cli\u003eLocate the \u003cstrong\u003eOBD2 socket (DLC)\u003c\/strong\u003e – usually under the dashboard on the driver's side.\u003c\/li\u003e\n\u003cli\u003eEnsure battery voltage is good (\u003e12.2V) for stable communication.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eB. Connect \u0026amp; start\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConnect the \u003cstrong\u003eKW850 cable\u003c\/strong\u003e to the vehicle's 16-pin socket until the connector is secure.\u003c\/li\u003e\n\u003cli\u003eThe device starts automatically on the vehicle's voltage. Select \u003cstrong\u003elanguage\u003c\/strong\u003e in the menu if prompted.\u003c\/li\u003e\n\u003cli\u003eTurn the ignition to \u003cstrong\u003eON\u003c\/strong\u003e (the engine can be \u003cem\u003eOFF\u003c\/em\u003e for initial reading).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eC. Basic diagnostics (quick start)\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eRead Codes:\u003c\/strong\u003e Read active\/stored\/pending DTCs. Note codes and \u003cstrong\u003efreeze frame\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDTC Lookup:\u003c\/strong\u003e Look up code definitions locally on the screen – identify likely causes of failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLive Data:\u003c\/strong\u003e Display key PIDs (ECT, STFT\/LTFT, O2, MAP\/MAF, RPM, VSS, etc.) in \u003cem\u003etext\u003c\/em\u003e or \u003cem\u003egraph\u003c\/em\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/M Readiness:\u003c\/strong\u003e Press the \u003cem\u003eOne-Click\u003c\/em\u003e button for quick inspection status. Are monitors \u003cem\u003eNot Ready\u003c\/em\u003e? Perform the correct drive cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Codes:\u003c\/strong\u003e After repair – clear codes, test drive, and verify they do not reappear.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eD. In-depth\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMode $06:\u003c\/strong\u003e Check on-board monitor results (misfire, catalyst, EVAP, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eO2 \u0026amp; EVAP:\u003c\/strong\u003e Review sensor response and EVAP data to track elusive problems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReport:\u003c\/strong\u003e Save and export via PC for archives or customer records.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eE. Battery voltage – rules of thumb\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBefore start:\u003c\/strong\u003e \u003c10.8V = weak battery. 10.8–11.8V = low, risk of difficult start. 11.8–12.8V = normal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter start:\u003c\/strong\u003e 12.8–13.2V = low charge; 13.2–14.8V = normal; \u003e14.8V = risk of overcharge\/regulator failure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- DIAGNOSFLÖDEN --\u003e\n\u003csection id=\"diagnosfloden\"\u003e\n\u003ch2\u003eDiagnostic flows – typical scenarios\u003c\/h2\u003e\n\u003ch3\u003e1) Check Engine (MIL) light on\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRun \u003cstrong\u003eRead Codes\u003c\/strong\u003e → note DTC + \u003cem\u003efreeze frame\u003c\/em\u003e.\u003c\/li\u003e\n\u003cli\u003eOpen \u003cstrong\u003eDTC Lookup\u003c\/strong\u003e for interpretation. Check \u003cstrong\u003eLive Data\u003c\/strong\u003e (O2, STFT\/LTFT, MAF\/MAP).\u003c\/li\u003e\n\u003cli\u003eAddress cause → \u003cstrong\u003eClear Codes\u003c\/strong\u003e → test drive and verify.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e2) Before inspection\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePress \u003cstrong\u003eOne-Click I\/M\u003c\/strong\u003e – ensure monitors are \u003cem\u003eReady\u003c\/em\u003e.\u003c\/li\u003e\n\u003cli\u003eIf \u003cem\u003eNot Ready\u003c\/em\u003e: follow recommended drive cycle until monitors become \u003cem\u003eReady\u003c\/em\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e3) High fuel consumption, sluggish engine\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReview \u003cstrong\u003eSTFT\/LTFT\u003c\/strong\u003e for lean\/rich condition.\u003c\/li\u003e\n\u003cli\u003eCheck MAF, MAP, IAT, and O2 dynamics. Look for vacuum leaks\/exhaust system leaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e4) Cold start problems\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeasure voltage drop via \u003cstrong\u003ebattery monitor\u003c\/strong\u003e, check ECT\/IAT plausibility.\u003c\/li\u003e\n\u003cli\u003eSee \u003cstrong\u003eMode $06\u003c\/strong\u003e misfire counter if available.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e5) EVAP-related codes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStudy \u003cstrong\u003eEVAP\/Mode $06\u003c\/strong\u003e. Check fuel cap, valves, and hoses.\u003c\/li\u003e\n\u003cli\u003eClear after repair and perform drive cycle for monitor \u003cem\u003eReady\u003c\/em\u003e.\u003c\/li\u003e\n\u003c\/ul\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\u003eSave data before clearing:\u003c\/strong\u003e Document DTC \u0026amp; freeze frame – facilitates follow-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus PIDs:\u003c\/strong\u003e Select fewer sensors for faster updates and clearer graphs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable voltage:\u003c\/strong\u003e Low battery voltage often causes communication disturbances and false alarms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter repair:\u003c\/strong\u003e Perform drive cycle until monitors are \u003cem\u003eReady\u003c\/em\u003e and check again with One-Click I\/M.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFollow service info:\u003c\/strong\u003e Advice from OBD data is guidance – always confirm in the manufacturer's manual.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpand if needed:\u003c\/strong\u003e For brand\/system diagnostics (ABS\/SRS\/EPB) – see more tools in \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!-- FAQ --\u003e\n\u003csection id=\"faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003ch3\u003e1. Does the KW850 work on my car?\u003c\/h3\u003e\n\u003cp\u003eIf the car is \u003cstrong\u003eOBD2\/EOBD 12V\u003c\/strong\u003e (USA 1996+, EU petrol ≈2001+, EU diesel ≈2004+) with a 16-pin socket, it generally works. Some brands\/model years may differ.\u003c\/p\u003e\n\u003ch3\u003e2. Does the KW850 also read ABS\/SRS\/EPB?\u003c\/h3\u003e\n\u003cp\u003eThe KW850 focuses on \u003cstrong\u003eengine\/emissions\u003c\/strong\u003e. For full system diagnostics, other tools in our range are needed.\u003c\/p\u003e\n\u003ch3\u003e3. Do I need a computer?\u003c\/h3\u003e\n\u003cp\u003eNo, all diagnostics are done on the device. A computer is only used for \u003cstrong\u003eupdates\u003c\/strong\u003e and \u003cstrong\u003eprinting\u003c\/strong\u003e if needed.\u003c\/p\u003e\n\u003ch3\u003e4. Is Swedish language supported?\u003c\/h3\u003e\n\u003cp\u003eThe menu languages include 9 languages (see specifications). Swedish is not available on the device, but code definitions are clear in the selected languages.\u003c\/p\u003e\n\u003ch3\u003e5. What does Mode $06 mean?\u003c\/h3\u003e\n\u003cp\u003eIt's the ECU's \u003cstrong\u003eon-board monitor results\u003c\/strong\u003e for specific tests, e.g., misfire, catalyst, EVAP. Helps in troubleshooting elusive faults.\u003c\/p\u003e\n\u003ch3\u003e6. Can I use it on 24V?\u003c\/h3\u003e\n\u003cp\u003eNo, the KW850 is designed for \u003cstrong\u003e12V OBD2\/EOBD\u003c\/strong\u003e vehicles.\u003c\/p\u003e\n\u003ch3\u003e7. Does “Clear Codes” fix the fault?\u003c\/h3\u003e\n\u003cp\u003eIt clears the memory and turns off the light – it does \u003cstrong\u003enot\u003c\/strong\u003e address the root cause. Fix the problem first.\u003c\/p\u003e\n\u003ch3\u003e8. Can I save and print reports?\u003c\/h3\u003e\n\u003cp\u003eYes, store on the device and print via PC. Perfect for customer records or service logs.\u003c\/p\u003e\n\u003ch3\u003e9. Why am I not getting a connection?\u003c\/h3\u003e\n\u003cp\u003eCheck ignition \u003cstrong\u003eON\u003c\/strong\u003e, stable battery voltage, that the socket works, and that the vehicle is indeed OBD2-compatible.\u003c\/p\u003e\n\u003ch3\u003e10. Support for Japanese cars?\u003c\/h3\u003e\n\u003cp\u003eOBD2\/EOBD models are supported. JOBD2 (some Japanese) is not supported.\u003c\/p\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 KW850 scanner\u003c\/li\u003e\n\u003cli\u003e1 × 16-pin OBD2 cable\u003c\/li\u003e\n\u003cli\u003e1 × USB data cable\u003c\/li\u003e\n\u003cli\u003e1 × User manual\u003c\/li\u003e\n\u003cli\u003e1 × Nylon bag\u003c\/li\u003e\n\u003cli\u003e1 × Colored retail packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- NOTISER --\u003e\n\u003csection id=\"notiser\"\u003e\n\u003ch2\u003eImportant notes \u0026amp; responsibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Regions implemented OBD2 in different years. Always check the vehicle's \u003cem\u003eVehicle Emission Control Information\u003c\/em\u003e label.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimitations:\u003c\/strong\u003e Support is normally lacking for Russian cars before 2012 (VAZ, UAZ, LADA) and JOBD2. 24V vehicles are not supported.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e Always follow the manufacturer's safety precautions. Store data before clearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem scope:\u003c\/strong\u003e The KW850 is for engine\/emissions. For ABS\/SRS\/EPB – see other tools from us under \u003ca href=\"https:\/\/www.felkodslasare.se\/collections\/felkodslasare-1\"\u003efault code readers\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdates:\u003c\/strong\u003e Keep the device updated via PC for best coverage and stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- SAMMANFATTNING --\u003e\n\u003csection id=\"sammanfattning\"\u003e\n\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eKONNWEI KW850\u003c\/strong\u003e is a \u003cstrong\u003ereliable, standalone, and easy-to-use\u003c\/strong\u003e OBD2\/EOBD tool for anyone who wants to resolve \u003cem\u003eCheck Engine\u003c\/em\u003e issues, understand \u003cstrong\u003elive data\u003c\/strong\u003e, and \u003cstrong\u003epass inspection\u003c\/strong\u003e with ease. With \u003cstrong\u003eOne-Click I\/M\u003c\/strong\u003e, \u003cstrong\u003eMode $06\u003c\/strong\u003e, \u003cstrong\u003eEVAP\u003c\/strong\u003e, \u003cstrong\u003eO2 tests\u003c\/strong\u003e, \u003cstrong\u003egraphed curves\u003c\/strong\u003e, and a \u003cstrong\u003eDTC dictionary\u003c\/strong\u003e, you get comprehensive decision support on the spot – without a phone. Feel free to combine it with other products in our \u003ca href=\"https:\/\/www.felkodslasare.se\/collections\/felkodslasare-1\"\u003efault code readers\u003c\/a\u003e category if you need extended system support. 🔧🚗\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- SEO (DOLT) --\u003e\n\u003cdiv style=\"display: none;\"\u003eKONNWEI KW850, OBD2 fault code reader, EOBD scanner, Check Engine, I\/M readiness, EVAP, Mode 06, live data, freeze frame, O2 sensor, VIN CALID CVN, battery voltage, 12V petrol diesel hybrid, ISO 9141, KWP2000, J1850 VPW\/PWM, ISO 15765-4 CAN, EU inspection, felkodslasare.se, vehicle diagnostics, DTC dictionary, free updates, 2.8\" TFT color screen, LED indicator.\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Konnwei","offers":[{"title":"Default Title","offer_id":54177160593676,"sku":"FEL-KW850","price":60.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/4979\/6876\/files\/Hf4892905c4c647fea4060df4cd92bc06I.jpg?v=1771872374","url":"https:\/\/www.felkodslasare.se\/en-en\/products\/konnwei-kw850-obd2-diagnosverktyg","provider":"Felkodsläsare","version":"1.0","type":"link"}