{"product_id":"4-pin-automotive-connector-vw-1j0-919-231-coolant-temperature-sensor-plug-golf-jetta-audi","title":"4-Pin Automotive Connector – VW 1J0 919 231, Coolant Temperature Sensor Plug for VW Golf, Jetta \u0026 Audi A4","description":"\u003ch2\u003e4-Pin Automotive Connector – VW 1J0 919 231, Coolant Temperature Sensor Plug for VW Golf, Jetta \u0026amp; Audi A4\u003c\/h2\u003e\n\n\u003cp\u003eVW part number 1J0 919 231 is a 4-pin connector plug used for coolant temperature sensor (CTS) and similar sensor connections in Volkswagen Group vehicles. This connector is used throughout the VW Golf Mk4, Jetta, Passat, Bora, and Audi A4\/A6 model ranges with 1.8T, 2.0, and TDI engines. The 4-pin configuration carries: coolant temperature signal, ground, and additional circuits for dual-temperature sensors or combined temperature\/level sensors. A common repair item — the connector housing cracks from heat cycling in the engine bay, causing intermittent coolant temperature faults.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVW Part Number:\u003c\/strong\u003e 1J0 919 231\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePin Count:\u003c\/strong\u003e 4 pins\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e PA66 nylon, heat-resistant\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Coolant temperature sensor and similar sensor connections in VW Group vehicles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Vehicles:\u003c\/strong\u003e VW Golf Mk4, Jetta, Passat, Bora; Audi A4, A6; Skoda Octavia; SEAT Leon (1.8T, 2.0, TDI engines)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Fault Symptoms — When to Replace 1J0 919 231\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant temperature gauge erratic:\u003c\/strong\u003e Intermittent or incorrect coolant temperature reading caused by a cracked connector housing or corroded terminal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine management warning light:\u003c\/strong\u003e P0115, P0116, P0117, P0118 (coolant temperature sensor circuit) fault codes caused by connector failure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFan running continuously:\u003c\/strong\u003e The ECU defaults to maximum cooling fan speed when the coolant temperature signal is lost — caused by a failed CTS connector\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoor cold start:\u003c\/strong\u003e The ECU uses coolant temperature for cold start enrichment — a failed CTS connector causes incorrect fueling during cold start\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eHow do I repair the 1J0 919 231 connector?\u003c\/h4\u003e\n\u003cp\u003eIf the housing is cracked or the latch is broken: replace the housing. Cut the wires behind the damaged connector, strip 8–10mm, crimp new 2.8mm VW terminals (1928498806) onto each wire, and insert into the new housing until each terminal clicks. If only the terminals are corroded: extract the corroded terminals using a terminal extraction tool, clean the wire ends, crimp new terminals, and reinsert. Apply dielectric grease to the terminal contact area before reassembly to prevent future corrosion.\u003c\/p\u003e\n\n\u003ch4\u003eWhat terminals are used in 1J0 919 231?\u003c\/h4\u003e\n\u003cp\u003eThe 1J0 919 231 connector uses 2.8mm VW\/Bosch female crimp terminals — part number 1928498806 (DJ626A-2.8). These are the standard 2.8mm terminals used throughout VW Group vehicles for sensor and signal circuits. Crimp tool: Bosch 1 987 010 502 or equivalent ratchet crimp tool with 2.8mm dies.\u003c\/p\u003e\n\n\u003ch4\u003eIs 1J0 919 231 the same as 1J0919231?\u003c\/h4\u003e\n\u003cp\u003eYes. VW part numbers are written with spaces (1J0 919 231) or without spaces (1J0919231) — both refer to the same part. When searching for this part number, try both formats in the VW\/Audi parts catalog.\u003c\/p\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVW Golf Mk4 \/ Jetta \/ Bora:\u003c\/strong\u003e Coolant temperature sensor connector replacement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVW Passat B5:\u003c\/strong\u003e Coolant temperature sensor connector repair\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudi A4 B5\/B6 \/ A6 C5:\u003c\/strong\u003e Coolant temperature sensor connector replacement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSkoda Octavia Mk1 \/ SEAT Leon Mk1:\u003c\/strong\u003e Coolant temperature sensor connector repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cp\u003e1 piece — VW 1J0 919 231 4-pin connector plug housing. Terminals (1928498806) ordered separately if not included.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"5sets","offer_id":47850563207413,"sku":"14:200002130#5sets","price":112.0,"currency_code":"USD","in_stock":true},{"title":"10sets","offer_id":47850563174645,"sku":"14:200004889#10sets","price":192.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/H15291715132648a2b9a3a6e7999ba56bg.webp?v=1773896259","url":"https:\/\/www.csldmcml.com\/products\/4-pin-automotive-connector-vw-1j0-919-231-coolant-temperature-sensor-plug-golf-jetta-audi","provider":"Cable Parts Online","version":"1.0","type":"link"}