{"nhtsa_id":10121588,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-10-31","date":"2014-10-21","document_id":"Campaign Circula","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:ELECTRICAL; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Emissions Service Action (Jetta SportWagen TDI Clean Diesel Engine Vehicles Glow Plug Control Module): If the engine is started during the initial glow plug glow phase, the engine control module (ECM) may receive an incorrect reading from the glow plug control module which may cause the vehicle?s Malfunction Indicator Light (MIL) to come on. If this happens, the vehicle may not pass an IM (emissions) inspection. This document informs how to check and, if necessary, replace the glow plug control module. This document discusses the \"Fault Codes\" necessary to diagnosis, and potential remedy of the issue.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10121588-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10121588-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121588","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"VOLKSWAGEN","model":"JETTA SPORTWAGEN","year_from":2013,"year_to":2014,"match":"exact","vehicle_ids":["2013_volkswagen_jetta-sportwagen","2014_volkswagen_jetta-sportwagen"]}],"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":[]}