Description And Operation: Description
The horn switch for this vehicle consists of four individual sets of normally open contacts wired in parallel so that all four sets of contacts operate as one switch. The horn switch contacts are secured to, but insulated from four coiled springs secured to the stamped metal fixing plate (6) for the Driver AirBag (DAB) (2). The fixing plate includes a pigtail wire harness and connector (4) on the upper center and integral routing clips for the contact wiring.
The horn switch and fixing plate unit is secured to the DAB housing (2) by screws. Each screw is secured to a threaded insert in the DAB housing. The DAB inflator and connectors (5) protrude through a clearance hole in the center of the fixing plate. A dedicated take out and connector of the steering wheel wire harness connects the horn switch to the vehicle electrical system through the clockspring. A retainer spring that extends to each outboard side of the fixing plate is secured within the hub of the steering wheel under a hook formation in the steering wheel hub armature adjacent to each side of the steering wheel hub cavity.
The components that make up the horn switch cannot be adjusted or repaired. If damaged or ineffective, the entire DAB, horn switch and fixing plate unit must be replaced.