M1557
Service Bulletin Details
Public Details for: M1557
Service bulletin m1557: touring and trike rear brake switch. Purpose: this bulletin informs dealers that harley-davidson has a mid year change in how the touring and trike vehicles receive its rear brake signal input. The touring and trike
- 2022 -
Models from 2022
M1557 2022-07-11 M1557: TOURING AND TRIKE REAR BRAKE SWITCH Motorcycles Affected Purpose for Service Bulletin Table 1. Platforms This bulletin informs dealers that Harley-Davidson has a mid year change in how the Touring and Trike vehicles receive its rear brake signal input. Year Platform The Touring and Trike vehicles will now receive rear brake input signal from a brake switch and will no longer activate the brake light based on rear brake pressure in the Electro Hydraulic Control Unit (EHCU). Touring 2022 Electrical Diagnostic Manual (EDM) and Service Manual will be updated with this change. See Service Information Portal (SIP) for electronic version of manuals. 2022 Trike vehicles: Starting with Vehicle Identification Number (VIN) 1HD1MAF13NB854022, will now be equipped with a rear brake switch located at the rear master cylinder inlet line on the EHCU. This includes the addition of two wires to the main harness. Police Touring Trike • BCM: [242B] terminal F3 to rear brake switch [121B-1] terminal 1 (BE/GN). CVO Touring • [121B-2] terminal 1 to Ground (GND) (BK). CVO Trike Touring vehicles: Starting with VIN 1HD1KBC16NB645227, the Body Control Module (BCM) will be calibrated to utilize the factory install rear brake switch. Model FLHR FLHRXS FLHT FLHTK FLHX FLHXS FLHXST FLTRK FLTRX FLTRXS FLTRXST FLHP FLHTP FLHTCUTG FLRT FLHXSE FLTRKSE FLTRXSE FLHTCUTGSE Markets Affected All markets are affected. Required Dealer Action 1726760 Table 2. Action Required NO YES Resolution Non-Actionable: This is for informational purposes only or a technical tip. Figure 1. Rear Brake Switch NOTE In the interest of preserving customer safety and satisfaction, always check for outstanding recalls whenever any motorcycle is brought into your dealership for either maintenance or service. ROUTING INITIAL HERE SERVICE MANAGER SALES MANAGER PARTS MANAGER WARRANTY PROCESS MANAGER LEAD TECHNICIAN TECHNICIAN NO. 1 TECHNICIAN NO. 2 TECHNICIAN NO. 3 RETURN THIS TO