{"nhtsa_id":10141280,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-18","date":"2016-05-11","document_id":"18-057-16","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER","mfr_system":null,"summary":"Flash: 3.6L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the Anti-lock Brake System (ABS) Module memory: NOTE: The Diagnostic Trouble Code (DTC) is caused by a calibration in the PCM that is in conflict with the ABS Module programming. The new software flash will correct this issue. · C121C-00 - Torque Request Signal Denied.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10141280-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10141280-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10141280","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"abs","name":"Anti-lock brakes","parent":"brakes"},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"torque-converter","name":"Torque converter","parent":"powertrain"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":["C121C"],"topics":[],"vehicles":[{"make":"CHRYSLER","model":"PACIFICA","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_chrysler_pacifica"]}],"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":[]}