{"vehicle":{"id":"2005_chrysler_pt-cruiser","year":2005,"make":"Chrysler","model":"PT Cruiser"},"code":"P0128","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":10215810,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-07-18","date":"2013-04-04","document_id":"18-016-13","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","summary":"This bulletin involves reprogramming the Powertrain Control Module with new software. The Technician may discover that P0128 - Thermostat Rationality DTC is present. This DTC is a two trip code and is matured if a significant difference exists between the PCM predicted and actual engine coolant temperature during engine warm-ups. The PCM calibration may improperly mature a P0128 DTC because the airflow across the coolant temperature sensor during colder ambient temperatures, 50° F (10° C) or below, causes the predicted coolant temperature to deviate from the actual coolant temperature.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10215810-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10215810-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10215810"},{"nhtsa_id":10188643,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-03-15","date":"2013-04-04","document_id":"18-016-13","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","summary":"This bulletin involves reprogramming the Powertrain Control Module with new software. The Technician may discover that P0128 - Thermostat Rationality DTC is present. This DTC is a two trip code and is matured if a significant difference exists between the PCM predicted and actual engine coolant temperature during engine warm-ups. The PCM calibration may improperly mature a P0128 DTC because the airflow across the coolant temperature sensor during colder ambient temperatures, 50° F (10° C) or below, causes the predicted coolant temperature to deviate from the actual coolant temperature.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10188643-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10188643-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10188643"}],"url":"https://open.wenmarpro.com/makes/chrysler/pt-cruiser/2005/bulletins?code=P0128"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/chrysler/pt-cruiser/2005/codes/P0128","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}