Checking The A/C Relay Output - Chrysler Pacifica 2004 Service Manual

Symptom:

*CHECKING THE A/C RELAY OUTPUT

A/C CLUTCH RELAY OPERATION
GROUND CIRCUIT OPEN
A/C CLUTCH
(A17) FUSED B+ CIRCUIT
(C3) A/C CLUTCH OUTPUT CIRCUIT
A/C CLUTCH RELAY
TEST
1 NOTE: Ensure that the refrigerant system is properly charged. Refer to the
appropriate Service Information.
Turn the ignition on.
With the DRBIII , actuate the A/C Clutch Relay.
Is the A/C Clutch actuating?
Yes → The A/C Clutch System operating properly at this time.
→ Go To 2
No
2 Turn the ignition off.
Disconnect the A/C Clutch harness connector.
Measure the Ground circuit in the A/C Clutch harness connector to ground.
Is the resistance below 5.0 ohms?
Yes → Go To 3
→ Repair the Ground circuit for an open.
No
3 Disconnect the A/C Clutch harness connector.
Turn the ignition on.
With the DRBIII , actuate the A/C Clutch Relay.
Measure the voltage of the A/C Clutch Relay Output circuit in the A/C Clutch harness
connector.
Is the voltage above 11.0 volts?
Yes → Replace the A/C Clutch.
→ Go To 4
No
4 Turn the ignition off.
Remove the A/C Clutch Relay from the PDC.
Using a 12-volt test light connected to ground, probe the (A17) Fused B+ circuit in the
PDC.
Does the test light illuminate brightly?
Yes → Go To 5
→ Repair the (A17) Fused B+ circuit. Inspect fuses and replace as
No
POSSIBLE CAUSES
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.
necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.
DRIVEABILITY - NGC
297
APPLICABILITY
All
All
All
All