Chrysler Town and Country 2003 Owner's Manual page 548

HEATING & A/C
BLEND CALIBRATION FAULT - MTC —
RECIRCULATION CALIBRATION FAULT - MTC
When Monitored: When the HVAC Door Recalibration is executed.
Set Condition: If the recirculation door's span is found outside the tolerance due to: open
door actuator electrical circuits; a bad door actuator; broken door linkage; a bound up door;
door actuator electrical circuits shorted to voltage; door actuator electrical circuits shorted
to ground. A short to voltage or ground on the door actuator electrical circuits will also set
door actuator overcurrent faults.
ZONE CALIBRATION FAULT - MTC
When Monitored: When the HVAC Door Recalibration is executed.
Set Condition: If the driver (zone) blend door's span is found outside the tolerance due to:
open door actuator electrical circuits; a bad door actuator; broken door linkage; a bound up
door; door actuator electrical circuits shorted to voltage; door actuator electrical circuits
shorted to ground. A short to voltage or ground on the door actuator electrical circuits will
also set door actuator overcurrent faults.
CHECK FOR ACTUATOR CIRCUIT TEST FAULT MESSAGES
CHECK FOR ACTIVE HVAC DTCS
MODE LINKAGE/DOOR BINDING
PASSENGER BLEND LINKAGE/DOOR BINDING
DRIVER BLEND LINKAGE/DOOR BINDING
RECIRCULATION LINKAGE/DOOR BINDING
REAR MODE LINKAGE/DOOR BINDING
REAR BLEND LINKAGE/DOOR BINDING
A/C - HEATER CONTROL MODULE
DOOR ACTUATOR DRIVER CIRCUIT OPEN
COMMON DOOR DRIVER CIRCUIT OPEN
DOOR ACTUATOR
A/C - HEATER CONTROL MODULE
REAR DOOR ACTUATOR DRIVER CIRCUIT OPEN
REAR COMMON DOOR DRIVER CIRCUIT OPEN
DOOR ACTUATOR
BROKEN ACTUATOR/LINKAGE/DOOR
Continued
POSSIBLE CAUSES
524