The following schematic shows the 1997 1.6L Acura EL Brake Lights Wiring and Circuit Diagram. The brake lights system consists of: battery, under-hood fuse/relay box, horn system, brake switch, ABS control unit, ECM/PCM, cruise control unit, left outer brake light (21W), left inner brake light (21W), high mount brake light (21W), right inner brake light (21W), right outer brake light (21W), and ground points (G601).