Refrigerant Pressure Rx Failure (Active); Vin Rx Failure (Active) - Dodge ZB 2005 Service Manual

HEATING & A/C
Symptom List:

REFRIGERANT PRESSURE RX FAILURE (ACTIVE)

VIN RX FAILURE (ACTIVE)

Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be REFRIGERANT PRESSURE RX
FAILURE (ACTIVE).
When Monitored and Set Condition:
REFRIGERANT PRESSURE RX FAILURE (ACTIVE)
When Monitored: With the ignition on.
Set Condition: This DTC will set if the A/C - Heater Control Module does not receive the
Refrigerant Pressure message from the PCM for more than 20 seconds.
VIN RX FAILURE (ACTIVE)
When Monitored: With the ignition on.
Set Condition: This DTC will set if the A/C - Heater Control Module does not receive the
VIN message from the PCM for more than 5 seconds.
CHECK FOR ADDITIONAL HVAC DTCS
CHECK FOR PCM DTCS
A/C - HEATER CONTROL MODULE
PCM - NO MESSAGE TO A/C - HEATER CONTROL MODULE
TEST
1 Turn the ignition on.
With the DRBIII , read HVAC DTCs.
Does the DRBIII display additional HVAC DTCs?
Yes → Return to the symptom list and choose the symptom(s).
No
2 Turn the ignition on.
With the DRBIII , check the PCM for any DTCs.
Are any DTCs present?
Yes → Refer to the Powertrain Diagnostic Information.
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
→ Go To 2
Perform BODY VERIFICATION TEST - VER 1.
→ Go To 3
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APPLICABILITY
All
All