Analog Input Signals
Analog Input Signals
Battery Voltage - The system voltage is monitored by the IKE and sets a fault if it exceeds 16 volts.
Fuel tank level - Two lever action sensors are wired in parallel to the IKE. The two variable resistor inputs are processed by the IKE and used to operate the fuel gauge. The reserve light is controlled by the IKE from the sensor inputs.
Photo transistor - A variable voltage signal, that is dependent on ambient light, is used for LCD back lighting.
Coolant Temperature - A NTC sensor is used by the IKE to measure coolant temperature. This is a CAN bus signal from the DME on vehicles produced from 9/97.
NOTE: The dual sensor and wiring continue to exist as in the earlier systems but the cluster is coded to only accept the information from the CAN.
Outside Temperature - A NTC sensor is used by the IKE to measure outside temperature for display in the cluster. Other systems that require outside temperature receive this information on the I/K Buses.