Chrysler Town, Dodge Caravan. Manual — part 741
AC PRESSURE TOO HIGH (STORED)
When Monitored:
With the ignition on and the IOD fuse installed. Also monitored during
the Cooldown Test.
Set Condition:
This DTC is set if the ATC reads the A/C Pressure Sensor value and it is
above 250 A/D counts.
DRIVER BLEND DOOR NOT RESPONDING (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
DRIVER BLEND DOOR RANGE TOO LARGE (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
DRIVER BLEND DOOR TRAVEL TOO SMALL (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is less than expected.
EVAP TEMP SENSOR OPEN (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is displayed if the ATC detects an abnormally high voltage on
the evaporator temperature sensor signal.
EVAP TEMP SENSOR SHORTED (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is displayed if the ATC detects an abnormally low voltage on the
evaporator temperature sensor signal.
FRONT IR SENSOR AND CONTROL HEAD MISMATCH (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the correct ATC head is not paired with the correct IR
module (i.e. left hand ATC head paired with right hand IR module).
FRONT IR SENSOR CHANGE TOO LARGE (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the ATC head detects a temperature difference greater
than 50 degrees between the front IR sensors.
200
AUTOMATIC TEMPERATURE CONTROL
AC PRESSURE TOO HIGH (STORED) —
Continued
FRONT IR SENSOR HIGH (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC reads the Front IR Sensor value and it is above
250 A/D counts.
FRONT IR SENSOR LOW (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC reads the Front IR Sensor value and it is below
5 A/D counts.
FRONT IR SENSOR NOT CALIBRATED (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC cannot read the IR sensor values or the IR
sensor values are not within a defined range of the HVAC air door motor counts.
FRONT KEYBOARD COMMUNICATION FAULT (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if there is an internal fault in the ATC head.
FRONT KEYBOARD FAULT (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if there is an internal fault in the ATC head.
FRONT MODE DOOR NOT RESPONDING (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
FRONT MODE DOOR TRAVEL TOO LARGE (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
FRONT MODE DOOR TRAVEL TOO SMALL (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is less than expected.
PASS BLEND DOOR NOT RESPONDING (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
201
AUTOMATIC TEMPERATURE CONTROL
AC PRESSURE TOO HIGH (STORED) —
Continued
PASS BLEND DOOR TRAVEL TOO LARGE (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
PASS BLEND DOOR TRAVEL TOO SMALL (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is less than expected.
PCI BUS SHORTED HIGH (STORED)
When Monitored:
With the ignition on.
Set Condition:
This DTC is set if the ATC detects a short to voltage on the PCI Bus circuit.
PCI BUS SHORTED LOW (STORED)
When Monitored:
With the ignition on.
Set Condition:
This DTC is set if the ATC detects a short to ground on the PCI Bus circuit.
REAR BLEND DOOR NOT RESPONDING (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
REAR BLEND DOOR RANGE TOO LARGE (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
REAR BLEND DOOR TRAVEL TOO SMALL (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is less than expected.
REAR FAN POT OPEN (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC reads the rear blower switch value and it is
above 250 A/D counts.
REAR FAN POT SHORTED (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC reads the rear fan switch value and it is below
5 A/D counts.
202
AUTOMATIC TEMPERATURE CONTROL
AC PRESSURE TOO HIGH (STORED) —
Continued
REAR KEYBOARD FAULT (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if there is an internal fault in the ATC head.
REAR MODE DOOR NOT RESPONDING (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
REAR MODE DOOR TRAVEL TOO LARGE (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
REAR MODE DOOR TRAVEL TOO SMALL (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is less than expected.
REAR MODE POT OPEN (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC reads the rear mode select switch value and it
is above 250 A/D counts.
REAR MODE POT SHORTED (STORED)
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC is set if the ATC reads the rear mode select switch value and it
is below 5 A/D counts.
RECIRC DOOR NOT RESPONDING (STORED)
When Monitored:
Ignition in RUN and IOD fuse installed.
Set Condition:
This DTC is set when the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
RECIRC DOOR TRAVEL TOO LARGE (STORED)
When Monitored:
Ignition in RUN and IOD fuse installed.
Set Condition:
This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
203
AUTOMATIC TEMPERATURE CONTROL
AC PRESSURE TOO HIGH (STORED) —
Continued
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