{"nhtsa_id":10149828,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-03","date":"2018-07-09","document_id":"23X1 20180809","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE; ENGINE","mfr_system":null,"summary":"Current Engine Control Module software does not properly operate the Leak Detection Pump heater circuit. This can allow moisture to collect within the pump and influence EVAP system measurements, which leads to erroneous EVAP fault codes stored in the ECM memory. REVISED","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10149828-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10149828-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10149828","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"software","name":"Software","parent":"electrical"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"VOLKSWAGEN","model":"ATLAS","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_volkswagen_atlas"]}],"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":[]}