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Park Lamp Relay The park lamp switch is a direct input to the instrument cluster. The instrument cluster sends a Wiper High/Low Relay The wiper switch is a direct input to the instru- ment cluster. The instrument cluster sends a PCI Wiper On/Off Relay The wiper switch is a direct input to the instru- ment cluster. The instrument cluster sends a PCI 3.8.3 ELECTRICAL INPUTS Module Battery Supply 12 Volt input for all FCM functions except head- lamp operation. Power Ground Ground source for all FCM functions Ignition Switch RUN or START Position 12 volt input to inform the FCM of the ignition switch status for related FCM functions. PCI Bus Approximately 7.5 volt input to allow the FCM to communicate with other modules on the PCI bus. Wiper Park Switch Ground input used to determine the park place- ment of the wipers. The ground is also used as Washer Fluid Level Switch Ground input from the washer fluid level switch which closes when washer fluid is low. Battery (+) Connection Detection 12 volt supply used to monitor battery connection to the IPM. The battery connection to the IPM uses 3.9 HEATING & A/C SYSTEM 3.9.1 SYSTEM AVAILABILITY • Depending on the model, either a Single-Zone or 3.9.2 SYSTEM CONTROLS The Heater Control Module: • is fully addressable with the DRBIII t. • communicates over the Programmable Commu- • controls blower motor operation, providing four • controls heated mirror and EBL operation (if • controls electric door actuator operation. The A/C-Heater Control Module: • is fully addressable with the DRBIII t. • communicates over the Programmable Commu- • uses input from the evaporator temperature sen- • provides an A/C request to the Powertrain Con- • controls blower motor operation, providing four • controls heated mirror and EBL operation (if • controls electric door actuator operation. • A simplified control system for operation of the 13 GENERAL INFORMATION |