{"nhtsa_id":602283,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-10-20","date":"1998-08-19","document_id":"9847","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"SOME AFTER MARKET EXHAUST BRAKE INSTALLATIONS, ESPECIALLY THOSE WITH SWITCHES THAT CONNECT TO THE THROTTLE PEDAL, CAN CAUSE MIL ILLUMINATION WITH TSC PO121- ACCEL POSITION SENSOR VOLTS DO NOT AGREE W/IDLE VALIDATION SIG. *AK","document":null,"url":"https://open.wenmarpro.com/bulletins/602283","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"DODGE","model":"RAM","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_dodge_ram"]}],"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":[]}