{"product_id":"scania-3-pin-ecu-controller-module-connector-te-1-968977-9-2-968977-9-3-968977-9","title":"Scania 3-Pin ECU \u0026 Controller Module Connector – TE 1-968977-9 \/ 2-968977-9 \/ 3-968977-9","description":"\u003ch2\u003eScania 3-Pin ECU \u0026amp; Controller Module Connector – TE Connectivity 1-968977-9 \/ 2-968977-9 \/ 3-968977-9\u003c\/h2\u003e\n\n\u003cp\u003eDirect OEM-specification replacement for the Scania 3-pin connector used on ECU (Engine Control Unit) and controller module harnesses. Cross-references TE Connectivity part numbers \u003cstrong\u003e1-968977-9\u003c\/strong\u003e, \u003cstrong\u003e2-968977-9\u003c\/strong\u003e, \u003cstrong\u003e3-968977-9\u003c\/strong\u003e (female\/socket variants) and \u003cstrong\u003e1-968976-9\u003c\/strong\u003e, \u003cstrong\u003e2-968976-9\u003c\/strong\u003e, \u003cstrong\u003e3-968976-9\u003c\/strong\u003e (male\/plug variants). The numeric prefix (1, 2, 3) denotes the keying variant, preventing mismating between different ECU connectors in the same harness. Used across Scania R, S, P, and G series trucks. Available bare or with pre-wired leads.\u003c\/p\u003e\n\n\u003ch2\u003eScania ECU Connector Keying System\u003c\/h2\u003e\n\n\u003cp\u003eScania uses a keying system on multi-pin ECU connectors to prevent mismating in the dense harness environment of a truck cab and engine bay. The numeric prefix (1, 2, 3) in the part number denotes the keying position:\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number Prefix\u003c\/th\u003e\n\u003cth\u003eKeying Position\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1-968977-9 \/ 1-968976-9\u003c\/td\u003e\n\u003ctd\u003eKey position 1\u003c\/td\u003e\n\u003ctd\u003eECU connector — position A in harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2-968977-9 \/ 2-968976-9\u003c\/td\u003e\n\u003ctd\u003eKey position 2\u003c\/td\u003e\n\u003ctd\u003eECU connector — position B in harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3-968977-9 \/ 3-968976-9\u003c\/td\u003e\n\u003ctd\u003eKey position 3\u003c\/td\u003e\n\u003ctd\u003eECU connector — position C in harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003e3-Pin ECU Circuit Function\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePin\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003eFailure Symptom if Corroded\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eECU power supply (+24V on Scania trucks) or signal reference\u003c\/td\u003e\n\u003ctd\u003eECU module inactive, no communication with SDP3 scan tool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eSignal output or CAN bus line\u003c\/td\u003e\n\u003ctd\u003eU-code logged, module communication fault\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eGround \/ module earth return\u003c\/td\u003e\n\u003ctd\u003eIntermittent ECU faults, erratic module behaviour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin Count\u003c\/td\u003e\n\u003ctd\u003e3-Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Numbers\u003c\/td\u003e\n\u003ctd\u003e1-968977-9 \/ 2-968977-9 \/ 3-968977-9 (female); 1-968976-9 \/ 2-968976-9 \/ 3-968976-9 (male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eTE Connectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eHigh-temp nylon (PA66), waterproof sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Option\u003c\/td\u003e\n\u003ctd\u003eBare connector \/ pre-wired leads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eScania ECU harness, controller module harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Models\u003c\/td\u003e\n\u003ctd\u003eScania R series, S series, P series, G series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eScania R series (R450\/R500\/R580) – Engine ECU and controller module harness\u003c\/li\u003e\n\u003cli\u003eScania S series (S500\/S580\/S650) – ECU connector\u003c\/li\u003e\n\u003cli\u003eScania P series (P280\/P360\/P410) – Controller module harness\u003c\/li\u003e\n\u003cli\u003eScania G series (G410\/G450) – ECU harness connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: My Scania SDP3 scan tool cannot communicate with the ECU — is it the connector?\u003c\/strong\u003e\u003cbr\u003eA: Loss of SDP3 communication with the Scania ECU is frequently caused by a corroded 3-pin ECU connector rather than a failed ECU. A corroded CAN bus pin (Pin 2) or ground pin (Pin 3) causes the ECU to lose its communication interface. Inspect the connector before replacing the ECU, which requires Scania dealer programming.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I identify which keying variant (1, 2, or 3) I need?\u003c\/strong\u003e\u003cbr\u003eA: The keying variant is physically visible on the connector housing as a tab or slot in a specific position. Compare the keying position of your existing connector with the three variants. The correct variant will mate smoothly — the incorrect variant will not engage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are terminals included?\u003c\/strong\u003e\u003cbr\u003eA: Yes, terminals are included with all variants.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"grey female Pins \/ 1 Pcs","offer_id":47838255972597,"sku":"14:10#grey female Pins;380:202835807#1 Pcs","price":19.14,"currency_code":"USD","in_stock":true},{"title":"grey female wires \/ 1 Pcs","offer_id":47838256300277,"sku":"14:366#grey female wires;380:202835807#1 Pcs","price":33.44,"currency_code":"USD","in_stock":true},{"title":"grey male Pins \/ 1 Pcs","offer_id":47838256005365,"sku":"14:29#grey male Pins;380:202835807#1 Pcs","price":19.14,"currency_code":"USD","in_stock":true},{"title":"grey male wires \/ 1 Pcs","offer_id":47838256333045,"sku":"14:496#grey male wires;380:202835807#1 Pcs","price":33.44,"currency_code":"USD","in_stock":true},{"title":"black female Pins \/ 1 Pcs","offer_id":47838256136437,"sku":"14:350852#black female Pins;380:202835807#1 Pcs","price":17.38,"currency_code":"USD","in_stock":true},{"title":"black female wires \/ 1 Pcs","offer_id":47838256038133,"sku":"14:94#black female wires;380:202835807#1 Pcs","price":31.68,"currency_code":"USD","in_stock":true},{"title":"black male Pins \/ 1 Pcs","offer_id":47838256103669,"sku":"14:350686#black male Pins;380:202835807#1 Pcs","price":17.38,"currency_code":"USD","in_stock":true},{"title":"black male wires \/ 1 Pcs","offer_id":47838256070901,"sku":"14:173#black male wires;380:202835807#1 Pcs","price":31.68,"currency_code":"USD","in_stock":true},{"title":"blue male Pins \/ 1 Pcs","offer_id":47838256201973,"sku":"14:350853#blue male Pins;380:202835807#1 Pcs","price":19.14,"currency_code":"USD","in_stock":true},{"title":"blue male wires \/ 1 Pcs","offer_id":47838256267509,"sku":"14:193#blue male wires;380:202835807#1 Pcs","price":33.44,"currency_code":"USD","in_stock":true},{"title":"blue female Pins \/ 1 Pcs","offer_id":47838256169205,"sku":"14:350850#blue female Pins;380:202835807#1 Pcs","price":19.14,"currency_code":"USD","in_stock":true},{"title":"blue female wires \/ 1 Pcs","offer_id":47838256234741,"sku":"14:175#blue female wires;380:202835807#1 Pcs","price":33.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/Se1fd29b51a8d4eee87d50321951d8c35w.webp?v=1773728220","url":"https:\/\/www.csldmcml.com\/products\/scania-3-pin-ecu-controller-module-connector-te-1-968977-9-2-968977-9-3-968977-9","provider":"Cable Parts Online","version":"1.0","type":"link"}