{"nhtsa_id":608390,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-11-26","date":"1999-09-01","document_id":"990604037","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:IGNITION:MODULE","mfr_system":null,"summary":"SUBJECT ON ON-BOARD DIAGNOSTIC (OBD) SYSTEM IMPROVEMENTS. *MJS","document":null,"url":"https://open.wenmarpro.com/bulletins/608390","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"CENTURY","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_buick_century"]},{"make":"BUICK","model":"LESABRE","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_buick_lesabre"]},{"make":"BUICK","model":"PARK AVENUE","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_buick_park-avenue"]},{"make":"BUICK","model":"REGAL","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_buick_regal"]},{"make":"BUICK","model":"SKYLARK","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_buick_skylark"]},{"make":"CHEVROLET","model":"C SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"CAMARO","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_chevrolet_camaro"]},{"make":"CHEVROLET","model":"G SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"K SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"L SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"LUMINA","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_chevrolet_lumina"]},{"make":"CHEVROLET","model":"M SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"MALIBU","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_chevrolet_malibu"]},{"make":"CHEVROLET","model":"MONTE CARLO","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_chevrolet_monte-carlo"]},{"make":"CHEVROLET","model":"P SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"S SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"T SERIES","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_chevrolet_t-series"]},{"make":"CHEVROLET","model":"VENTURE","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_chevrolet_venture"]},{"make":"GMC","model":"C SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"G SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"K SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"L SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"M SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"P SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"S SERIES","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"T SERIES","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_gmc_t-series"]},{"make":"OLDSMOBILE","model":"88","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"OLDSMOBILE","model":"ACHIEVA","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_oldsmobile_achieva"]},{"make":"OLDSMOBILE","model":"BRAVADA","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_oldsmobile_bravada"]},{"make":"OLDSMOBILE","model":"CUTLASS","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_oldsmobile_cutlass"]},{"make":"OLDSMOBILE","model":"INTRIGUE","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_oldsmobile_intrigue"]},{"make":"OLDSMOBILE","model":"SILHOUETTE","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_oldsmobile_silhouette"]},{"make":"PONTIAC","model":"BONNEVILLE","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_pontiac_bonneville"]},{"make":"PONTIAC","model":"FIREBIRD","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_pontiac_firebird"]},{"make":"PONTIAC","model":"GRAND AM","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_pontiac_grand-am"]},{"make":"PONTIAC","model":"GRAND PRIX","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_pontiac_grand-prix"]},{"make":"PONTIAC","model":"TRANS SPORT","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_pontiac_trans-sport"]}],"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":[]}