{"nhtsa_id":620891,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-09-04","date":"2001-06-01","document_id":"0100801","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"SOME VEHICLES BUILT PRIOR TO JANUARY 2, 2001 MAY EXHIBIT ROUGH IDLE, ANTI-LOCK BRAKE SYSTEM (ABS) WARNING LAMP ILLUMINATION, INOPERATIVE OR ERRATIC SPEEDOMETER, DIAGNOSTIC TROUBLE CODE (DTC) P0500, P0501, P0503, P1721, P0176, P1000, ABS DTC 9, RABS DTC 16, OR A DELAYED OR HARSH SHIFTING AUTOMATIC TRANSMISSION. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/620891","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["P0176","P0500","P0501","P0503","P1000","P1721"],"topics":[],"vehicles":[{"make":"MAZDA","model":"B-SERIES TRUCK","year_from":2000,"year_to":2001,"match":"base","vehicle_ids":["2000_mazda_b-series","2001_mazda_b-series"]}],"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":[]}