{"product_id":"4-pin-15369055-cadillac-drl-fog-light-water-temp-sensor-connector","title":"4-Pin 15369055 Daytime Running Light \u0026 Fog Light Harness Connector – Cadillac Water Temp Sensor","description":"\u003ch2\u003e4-Pin 15369055 Daytime Running Light, Fog Light \u0026amp; Water Temperature Sensor Connector – Cadillac\u003c\/h2\u003e\u003cp\u003eDirect-fit replacement for GM\/Cadillac OEM part number \u003cstrong\u003e15369055\u003c\/strong\u003e, used across multiple Cadillac platforms for daytime running light (DRL) modules, front fog light assemblies, and coolant water temperature sensor harnesses. This connector is a common failure point on aging Cadillac wiring harnesses due to heat cycling and road salt exposure.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 15369055\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Count:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Female (with wire)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Gauge:\u003c\/strong\u003e 18 AWG (0.5 mm²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 5.5 inches (140 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e PA66 glass-filled nylon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Copper alloy, tin-plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Rating:\u003c\/strong\u003e IP68\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 12V DC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaytime Running Light (DRL) module connector\u003c\/strong\u003e – Cadillac CTS, STS, DTS, Escalade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront fog light assembly harness\u003c\/strong\u003e – Cadillac SRX, ATS, XTS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant water temperature sensor\u003c\/strong\u003e – GM 3.6L V6 and 4.6L V8 engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reference:\u003c\/strong\u003e Verify OEM part number 15369055 on your vehicle before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Failure Symptoms\u003c\/h3\u003e\u003cp\u003eWhen the 15369055 connector fails, you may experience:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDRL not working\u003c\/strong\u003e – one or both daytime running lights inoperative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFog light failure\u003c\/strong\u003e – fog lights not responding to switch input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eP0116 \/ P0117 \/ P0118\u003c\/strong\u003e – Engine Coolant Temperature (ECT) sensor circuit fault codes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErratic temperature gauge\u003c\/strong\u003e – gauge reads cold or pegged hot due to open circuit at sensor connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan running continuously\u003c\/strong\u003e – ECM defaults to maximum cooling when ECT signal is lost\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDiagnosis Procedure\u003c\/h3\u003e\u003cp\u003eBefore replacing the sensor or module, inspect the 15369055 connector:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eDisconnect the connector and inspect for green corrosion, bent pins, or cracked housing\u003c\/li\u003e\n\u003cli\u003eMeasure pin-to-pin resistance – any reading above \u003cstrong\u003e0.5Ω\u003c\/strong\u003e indicates terminal corrosion\u003c\/li\u003e\n\u003cli\u003eCheck for moisture inside the connector body – a sign of failed wire seals\u003c\/li\u003e\n\u003cli\u003eApply dielectric grease to terminals before reconnecting\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What Cadillac models use the 15369055 connector?\u003c\/strong\u003e\u003cbr\u003eA: The 15369055 is used across multiple GM\/Cadillac platforms including the CTS (2003–2014), STS (2005–2011), DTS (2006–2011), Escalade (2002–2013), SRX (2004–2009), and ATS (2013–2019). Always verify by OEM part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can this connector be used for both DRL and water temp sensor applications?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The 15369055 housing is used for multiple 4-pin applications across GM platforms. The physical connector is identical – the application depends on which harness it is installed in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What causes the P0117 code on Cadillac?\u003c\/strong\u003e\u003cbr\u003eA: P0117 (ECT Sensor Circuit Low) is most commonly caused by a short to ground in the sensor circuit or a failed connector. Inspect the 15369055 connector for corrosion or water ingress before replacing the ECT sensor itself.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this connector compatible with Chevrolet and GMC vehicles?\u003c\/strong\u003e\u003cbr\u003eA: The 15369055 is a GM-platform connector used across Cadillac, Chevrolet, and GMC vehicles. Cross-reference your OEM part number to confirm fitment on non-Cadillac GM applications.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cp\u003e1 × 4-Pin Female Connector (15369055) with 18 AWG wire and terminal insert\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"4P \/ Female with Wire \/ China Mainland|Line Connector|1 Set","offer_id":47844185342197,"sku":"14:200004889#Female with Wire;200001249:202408830#1 Set;200007763:201336100;200497261:200000933;462:203053809","price":14.7,"currency_code":"USD","in_stock":true},{"title":"4P \/ Female with Wire \/ China Mainland|Line Connector|10 Sets","offer_id":47844185374965,"sku":"14:200004889#Female with Wire;200001249:202408829#10 Sets;200007763:201336100;200497261:200000933;462:203053809","price":147.15,"currency_code":"USD","in_stock":true},{"title":"4P \/ Female with Wire \/ China Mainland|Line Connector|3 Sets","offer_id":47844185407733,"sku":"14:200004889#Female with Wire;200001249:202408832#3 Sets;200007763:201336100;200497261:200000933;462:203053809","price":44.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3494\/0149\/files\/S60cfc5db0bf048ce95198f9f7c32bc83E.webp?v=1773810028","url":"https:\/\/www.csldmcml.com\/products\/4-pin-15369055-cadillac-drl-fog-light-water-temp-sensor-connector","provider":"Cable Parts Online","version":"1.0","type":"link"}