{"nhtsa_id":10089848,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-30","date":"2015-05-27","document_id":"TT066","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL","mfr_system":null,"summary":"\"TECH TIP: DTC C1203 OR C1212 - SPEED SENSOR FAILURE SYMPTOM: C1203 – RH FRONT WHEEL SPEED SENSOR OPEN/SHORT AND/OR C1212 – VEHICLE SPEED SENSOR FAILURE. REPAIR: CHECK FOR A SHORT IN THE MAIN ESC HARNESS NEAR THE RADIATOR BRACKET. VERIFY POSSIBLE RUBBING BETWEEN THE BRACKET THAT RUNS UNDER THE HEADLIGHT TO THE RADIATOR AND THE HARNESS (SEE IMAGE). REPAIR THE DAMAGED WIRES AND ADD INSULATION TO THE BRACKET TO PREVENT ANY FURTHER DAMAGE TO THE HARNESS. CLEAR ANY DTCS (IN ACTIVE OR HISTORY). \"","document":null,"url":"https://open.wenmarpro.com/bulletins/10089848","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"speed-control","name":"Throttle and cruise control","parent":null}],"codes":["C1203","C1212"],"topics":[],"vehicles":[{"make":"KIA","model":"OPTIMA HYBRID","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_kia_optima"]}],"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":[]}