B1823 Water Pump Circuit: Open; B1823 Water Pump Circuit: Short To Ground - Chrysler Town and Country 2003 Owner's Manual

CABIN HEATER
Symptom List:

B1823 WATER PUMP CIRCUIT: OPEN

B1823 WATER PUMP CIRCUIT: SHORT TO GROUND

Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be B1823 WATER PUMP CIRCUIT:
OPEN.
When Monitored and Set Condition:
B1823 WATER PUMP CIRCUIT: OPEN
When Monitored: During DCHA activation and operation.
Set Condition: This fault is erroneous for this DCHA assembly.
B1823 WATER PUMP CIRCUIT: SHORT TO GROUND
When Monitored: During DCHA activation and operation.
Set Condition: This fault is erroneous for this DCHA assembly.
DCHA CONTROL UNIT FAULT
TEST
1 WARNING: DO NOT OPERATE THE DCHA IN AN ENCLOSED AREA SUCH
AS A GARAGE THAT DOES NOT HAVE EXHAUST VENTILATION FACILI-
TIES. ALWAYS VENT THE DCHA's EXHAUST WHEN OPERATING THE
DCHA. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
PERSONAL INJURY OR DEATH.
WARNING: ALLOW THE DCHA ASSEMBLY TO COOL BEFORE PERFORM-
ING A COMPONENT INSPECTION/REPAIR/REPLACEMENT. FAILURE TO
FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
CAUTION: DO NOT PERFORM THIS TEST UNLESS DIRECTED HERE BY
THE CABIN HEATER PRE-TEST. ALWAYS PERFORM THE CABIN HEATER
PRE-TEST PRIOR TO PERFORMING ANY OTHER CABIN HEATER TEST
FOR THE RESULT TO BE VALID.
Turn the ignition off.
View repair
Repair
POSSIBLE CAUSES
ACTION
Replace the DCHA Heater Module in accordance with the Service
Information.
Perform CABIN HEATER VERIFICATION TEST - VER 1.
310
APPLICABILITY
All