Chrysler Pacifica. Manual — part 144
POSSIBLE CAUSES
DOOR DRIVER (B) CIRCUIT OPEN
DOOR ACTUATOR
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the ATC C2 harness connector.
Turn the ignition on.
Measure the voltage between the applicable Door Driver (A) circuit and ground.
Measure the voltage between the applicable Door Driver (B) circuit and ground.
Is the voltage above 0.2 volts on either circuit?
All
Yes
→ Repair the door driver circuit with voltage above 0.2 volts for a
short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition off.
Disconnect the ATC C2 harness connector.
Measure the resistance between ground and the applicable Door Driver (A) circuit.
Measure the resistance between ground and the applicable Door Driver (B) circuit.
Is the resistance below 10K ohms on either circuit?
All
Yes
→ Repair the door driver circuit with resistance below 10K ohms for
a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Disconnect the ATC C2 harness connector.
NOTE: Do NOT measure the resistance between the Door Driver circuits
that connect to the same actuator.
Measure the resistance between the applicable Door Driver (A) circuit and each of the
remaining Door Driver circuits.
Measure the resistance between the applicable Door Driver (B) circuit and each of the
remaining Door Driver circuits.
Is the resistance below 10K ohms on any of the circuits?
All
Yes
→ Repair the door driver circuits with a resistance below 10K ohms
for a short together.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the ATC C2 harness connector.
Measure the resistance between the applicable actuator’s Door Driver (A) circuit and
Door Driver (B) circuit.
Is the resistance below 30.0 ohms?
All
Yes
→ Go To 5
No
→ Go To 6
573
HEATING & A/C
DRIVER BLEND DOOR NOT RESPONDING (ACTIVE) - ATC —
Continued
TEST
ACTION
APPLICABILITY
5
Turn the ignition off.
Disconnect the ATC C2 harness connector.
Disconnect the applicable door actuator harness connector.
Measure the resistance between the Door Driver (A) circuit and Door Driver (B)
circuit.
Is the resistance below 10K ohms?
All
Yes
→ Repair the door driver circuits for a short together.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the door actuator in accordance with the Service Infor-
mation.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Disconnect the ATC C2 harness connector.
Measure the resistance between the applicable actuator’s Door Driver (A) circuit and
Door Driver (B) circuit.
Is the resistance above 70.0 ohms?
All
Yes
→ Go To 7
No
→ Replace the Automatic Temperature Control (ATC) in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
7
Turn the ignition off.
Disconnect the ATC C2 harness connector.
Disconnect the applicable door actuator harness connector.
Measure the resistance of the Door Driver (A) circuit between the ATC C2 harness
connector and the door actuator harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 8
No
→ Repair the Door Driver (A) circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
8
Turn the ignition off.
Disconnect the ATC C2 harness connector.
Disconnect the applicable door actuator harness connector.
Measure the resistance of the Door Driver (B) circuit between the ATC C2 harness
connector and the door actuator harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the door actuator in accordance with the Service Infor-
mation.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Door Driver (B) circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
574
HEATING & A/C
DRIVER BLEND DOOR NOT RESPONDING (ACTIVE) - ATC —
Continued
Symptom List:
DRIVER BLEND DOOR TRAVEL TOO LARGE (ACTIVE) - ATC
FRONT MODE DOOR TRAVEL TOO LARGE (ACTIVE) - ATC
PASSENGER BLEND DOOR TRAVEL TOO LARGE (ACTIVE) - ATC
RECIRC DOOR TRAVEL TOO LARGE (ACTIVE) - ATC
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be DRIVER BLEND DOOR TRAVEL
TOO LARGE (ACTIVE) - ATC.
When Monitored and Set Condition:
DRIVER BLEND DOOR TRAVEL TOO LARGE (ACTIVE) - 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.
FRONT MODE DOOR TRAVEL TOO LARGE (ACTIVE) - 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 LARGE (ACTIVE) - 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.
RECIRC DOOR TRAVEL TOO LARGE (ACTIVE) - 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.
POSSIBLE CAUSES
DOOR NOT RESPONDING DTC(S) SET
DOOR ACTUATOR
DOOR LINKAGE/DOOR
AUTOMATIC TEMPERATURE CONTROL (ATC)
575
HEATING & A/C
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read the active ATC DTCs.
Are any Door Not Responding DTCs set?
All
Yes
→ Return to the Heating & A/C symptom list and choose the
symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition off.
Remove the applicable door actuator from the A/C-Heater Housing assembly.
By hand, attempt to rotate the actuator in both directions.
Does the actuator turn in either direction?
All
Yes
→ Replace the door actuator in accordance with the Service Infor-
mation.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Remove the applicable door actuator from the A/C-Heater Housing assembly.
Inspect the door linkage for excessive wear, disconnected, missing, and broken
linkage. Also, inspect for a warped or broken door.
Rotate the door from stop to stop. The door should rotate approximately 45 degrees.
Were any mechanical problems found?
All
Yes
→ Repair or replace the door/linkage as necessary in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Automatic Temperature Control (ATC) in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
576
HEATING & A/C
DRIVER BLEND DOOR TRAVEL TOO LARGE (ACTIVE) - ATC —
Continued
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