9-5 (9600) L4-2.3L Turbo (B235) (2001)
Relay (68) for the horn is energized by the +30 circuit via fuse 3 in 342a. When the horn switch on the steering wheel is activated, the SID unit grounds
pin 11, whereupon the relay operates and the horn is activated.
The horn is also used to acknowledge "TSL" locking on the car. The SID obtains information via the bus from TWICE to activate the horn.
Rheostat Level
Rheostat Level
General