Chrysler Pacifica. Manual — part 135
NO COMMUNICATION WITH BCM (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive any messages from the Body Control Module (BCM) for at least 5 seconds.
NO COMMUNICATION WITH DDM (STORED) -ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive any messages from the Driver Door Module (DDM) for at least 5 seconds.
NO COMMUNICATION WITH MIC (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive any messages from the Instrument Cluster (EMIC) for at least 5 seconds.
NO COMMUNICATION WITH PCM (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive any messages from the Powertrain Control Module (PCM) for at least 5 seconds.
NO COMMUNICATION WITH PDM (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive any messages from the Passenger Door Module (PDM) for at least 5 seconds.
OPS CHECKSUM ERROR (STORED) - ATC
When Monitored:
With the ignition on and IOD fuse installed after a battery disconnect.
Set Condition:
This DTC will set if the calculated check sum does not match the stored
value.
OUTSIDE AIR TEMP MESSAGE MISSING (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive the Outside Air Temperature message from the Powertrain Control Module (PCM)
for more than 5 seconds.
PAS FRONT DOOR MESSAGE MISSING (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive the Right Front Door Ajar message from the Passenger Door Module (PDM) for
more than 5 seconds.
537
HEATING & A/C
AC PRESSURE SENSOR FAULT (STORED) - ATC —
Continued
PASSENGER BLEND DOOR NOT RESPONDING (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive feedback pulses within 5 seconds of the drive voltage being applied.
PASSENGER BLEND DOOR TRAVEL TOO LARGE (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
The Automatic Temperature Control (ATC) monitors the door’s range of
travel during system initialization. If the measured range is greater than expected, the
DTC will set.
PASSENGER BLEND DOOR TRAVEL TOO SMALL (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
The Automatic Temperature Control (ATC) monitors the door’s range of
travel during system initialization. If the measured range is less than expected, the DTC
will set.
PCI BUS SHORTED HIGH (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) detects a
short to voltage on the PCI Bus circuit.
PCI BUS SHORTED LOW (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) detects a
short to ground on the PCI Bus circuit.
REAR FAN POT OPEN (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Rear Fan Sense input is above 253 A/D counts (4.9
volts).
REAR FAN POT SHORTED (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Rear Fan Sense input is below 3 A/D counts (0.059
volts).
RECIRC DOOR NOT RESPONDING (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive feedback pulses within 5 seconds of the drive voltage being applied.
538
HEATING & A/C
AC PRESSURE SENSOR FAULT (STORED) - ATC —
Continued
RECIRC DOOR TRAVEL TOO LARGE (STORED) - ATC
When Monitored:
With the ignition on and IOD fuse installed.
Set Condition:
The Automatic Temperature Control (ATC) monitors the door’s range of
travel during system initialization. If the measured range is greater than expected, the
DTC will set.
RECIRC DOOR TRAVEL TOO SMALL (STORED) - ATC
When Monitored:
With the ignition on and IOD fuse installed.
Set Condition:
The Automatic Temperature Control (ATC) monitors the door’s range of
travel during system initialization. If the measured range is less than expected, the DTC
will set.
REFRIGERANT PRESS MESSAGE MISSING (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive the message from the Powertrain Control Module (PCM) for more than 16 seconds.
This message provides A/C Hi-Side Pressure and Intake Air Temperature.
RIGHT IR SENSOR NOT CALIBRATED (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) cannot
read the IR sensor offset and gain values.
VEHICLE ODOMETER MESSAGE MISSING (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive the Vehicle Odometer message from the Body Control Module (BCM) for more than
5 seconds.
VEHICLE SPEED/RPM MESSAGE MISSING (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive the message from the Powertrain Control Module (PCM) for more than 2 seconds.
This message provides Engine RPM and Vehicle Speed.
VF DIMMING MESSAGE MISSING (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
If the Automatic Temperature Control (ATC) does not receive the VF
Dimming message from the Body Control Module (BCM) for more than 5 seconds, then the
VF display will default to daytime brightness and the DTC will set.
539
HEATING & A/C
AC PRESSURE SENSOR FAULT (STORED) - ATC —
Continued
VIN MESSAGE MISSING (STORED) - ATC
When Monitored:
With the ignition on and the IOD fuse installed.
Set Condition:
This DTC will set if the Automatic Temperature Control (ATC) does not
receive the VIN message from the Powertrain Control Module (PCM) for more than 16
seconds.
POSSIBLE CAUSES
CHECK FOR ACTIVE ATC DTCS AND COOLDOWN TEST FAULT MESSAGES
OLD DTC OR INTERMITTENT WIRING PROBLEM
540
HEATING & A/C
AC PRESSURE SENSOR FAULT (STORED) - ATC —
Continued
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