Manual Temperature Control (MTC)
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
The Manual Temperature Control (MTC):
- controls blower motor operation, providing four blower speeds (Low, M1, M2, & High).
- interfaces with the BCM through hardwired circuits.
- provides temperature setting information to the BCM through a resistor.
- provides an A/C request, an EBL request, and mode switch setting information to the BCM through a resistive multiplexed circuit.
The Body Control Module (BCM):
- drives the EBL status indicator in the MTC. Refer to the Service information for additional information about rear window defogger operation.
- drives the electric door actuators (mode, blend, recirc).
- sends and A/C request, over the PCI Bus, to the PCM when A/C operation is desired.
- uses Evaporator Temperature Sensor data to prevent evaporator freeze up while maintaining optimum cooling performance.
The MTC HVAC system uses:
- one, five-wire electric blend door actuator.
- one, five-wire electric mode door actuator.
- one, two-wire electric recirculation door actuator.