Digital Inputs
DIGITAL INPUT SIGNALS
The normal power-up and KL 50 inputs to the IKE processor:
- Terminal R,
- Terminal 15,
- Terminal 50
Various functions are dependent on the ignition switch positions.
Steering column switch - As in previous systems, this switch is used to call up BC functions into the cluster matrix.
Brake Pad Wear Sensors - The same system that has been used in earlier models is carried over into the E38.
Oil Pressure Switch - This status is transmitted to the CCM over the I-BUS. The CCM compares the switch status with engine speed to evaluate oil pressure. IKE can store faults with the oil pressure switch and circuit.
Parking Brake Switch - Switch status is transmitted to the CCM for evaluation.
Trip Odometer Reset - The left button on the cluster is used to reset the trip mileage if the key is on and display mileage it the key is off.