{"nhtsa_id":10085409,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-12-02","date":"2014-01-27","document_id":"TSB130151-012114","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"THIS TECHNICAL SERVICE BULLETIN DESCRIBES THE VERIFICATION AND RESOLUTION OF SUCEPTABILITY TO LOW COOLANT FAULT DIAGNOSTICS DUE TO COOLANT SENSOR WIRING IN KENWORTH T600, T800 AND W900 CHASSIS. SOME OF THESE VEHICLES WERE BUILT WITH INCORRECT ORIGINAL EQUIPMENT MANUFACTURER (OEM) WIRING TO THE COOLANT LEVEL SENSOR THAT MAKES THEM MORE SUSCETIBLE TO FAULT COD 2448, 197 AND 235, AND AN AUDIBLE LOW COOLANT WARNING WITH A COOLANT EXPANSION TANK AT THE FULL LEVEL. THE ACTION TO ADDRESS THIS CONDITION IS DESCRIBED.","document":null,"url":"https://open.wenmarpro.com/bulletins/10085409","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS WESTPORT","model":"ISX12 G","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}