{"nhtsa_id":10076508,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-07-14","date":"2016-04-23","document_id":"08-051-16","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM","mfr_system":null,"summary":"SUBJECT: Flash: Air Suspension Control Module (ASCM) This bulletin involves updating the ASCM with the latest available software. SYMPTOM/CONDITION: Customers may experience no ride height change with the vehicle in real cold conditions and in addition they may also have a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · C15A1-00 - Unable To Obtain Desired Ride Height. · C1562-98 - Ride Height Air Pump Control - Component Or System Over Temperature. · C1562-92 - Height Air Pump Control - Performance Or Incorrect Operation. · C159F-92 - Air Suspension Reverse Valve 1 Control - Performance Or Incorrect Operation. · C15A0-92 - Air Suspension Reverse Valve 2 Control - Performance Or Incorrect Operation. · C155E-92 - Height Pressure Vent Control - Performance Or Incorrect Operation • C15AA-00 - Air Leak During Vent. In addition, the customer may notice the following condition: • Vehicle does not change ride heights when selected in cold weather.","document":null,"url":"https://open.wenmarpro.com/bulletins/10076508","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"suspension","name":"Suspension","parent":null},{"id":"air-suspension","name":"Air suspension","parent":"suspension"},{"id":"software","name":"Software","parent":"electrical"}],"codes":["C155E","C1562","C159F","C15A0","C15A1","C15AA"],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2015,"year_to":2016,"match":"exact","vehicle_ids":["2015_ram_1500","2016_ram_1500"]}],"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":[]}