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Home >> Chrysler >> 2004 >> Pacifica AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Body Diagnostic Procedures - HVAC, Ignition Power Accessory, Instrument Cluster, Interior Lighting, Navigation, Overhead Console, Power Door Locks/RKE >> Heating & A/C >> Symptom: *REAR MODE DOOR INOPERATIVE >> Diagnostic Procedure

Diagnostic Procedure

*REAR MODE DOOR INOPERATIVE - DIAGNOSTIC PROCEDURE

TEST ACTION APPLICABILITY
1 Turn the ignition off.
Disconnect the ATC C2 harness connector.
Turn the ignition on.
Measure the voltage between the Rear Mode Door Driver (A) circuit and ground.
Measure the voltage between the Rear Mode Door Driver (B) circuit and ground.
Is the voltage above 0.2 volts on either circuit?
  1. Yes: Repair the Rear Mode Door Driver circuit with voltage above 0.2 volts for a short to voltage.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Go To 2
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2 Turn the ignition off.
Disconnect the ATC C2 harness connector.
Measure the resistance between the Rear Mode Door Driver (A) circuit and the Rear Mode Door Driver (B) circuit.
What is the resistance?
  1. Below 30.0 ohms: Go To 3
  2. Above 70.0 ohms: Go To 5
  3. 30.0 to 70.0 ohms: Go To 7
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3 Turn the ignition off.
Disconnect the ATC C2 harness connector.
Measure the resistance between ground and the Rear Mode Door Driver (A) circuit.
Measure the resistance between ground and the Rear Mode Door Driver (B) circuit.
Is the resistance below 10K ohms on either circuit?
  1. Yes: Repair the Rear Mode Door Driver circuit with resistance below 10K ohms for a short to ground.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Go To 4
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4 Turn the ignition off.
Disconnect the ATC C2 harness connector.
Disconnect the Rear Mode Door Actuator harness connector.
Measure the resistance between the Rear Mode Door Driver (A) circuit and the Rear Mode Door Driver (B) circuit.
Is the resistance below 10K ohms?
  1. Yes: Repair the Rear Mode Door Driver circuits for a short together.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Replace the Rear Mode Door Actuator in accordance with the Service Information.

    Perform BODY VERIFICATION TEST VER-1 .

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5 Turn the ignition off.
Disconnect the ATC C2 harness connector.
Disconnect the Rear Mode Door Actuator harness connector.
Measure the resistance of the Rear Mode Door Driver (A) circuit between the ATC C2 harness connector and the Rear Mode Door Actuator harness connector.
Is the resistance below 5.0 ohms?
  1. Yes: Go To 6
  2. No: Repair the Rear Mode Door Driver (A) circuit for an open.

    Perform BODY VERIFICATION TEST VER-1 .

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6 Turn the ignition off.
Disconnect the ATC C2 harness connector.
Disconnect the Rear Mode Door Actuator harness connector.
Measure the resistance of the Rear Mode Door Driver (B) circuit between the ATC C2 harness connector and the Rear Mode Door Actuator harness connector.
Is the resistance below 5.0 ohms?
  1. Yes: Replace the Rear Mode Door Actuator in accordance with the Service Information.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Repair the Rear Mode Door Driver (B) circuit for an open.

    Perform BODY VERIFICATION TEST VER-1 .

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7 Turn the ignition off.
Disconnect the Rear Mode Door Actuator harness connector.
Turn the ignition on.
Set the MODE switch to the panel position. Wait approximately 15 seconds before proceeding to the next step.
Turn the ignition off.
Connect a 12-volt Test Light between the Rear Mode Door Driver (A) circuit and the Rear Mode Door Driver (B) circuit in the Rear Mode Door Actuator harness connector.
Turn the ignition on.
While monitoring the test light, set the MODE switch to the floor/mix/defrost position. The test light should flash for 10 seconds.
While monitoring the test light, set the MODE switch to the panel position. The test light should flash for 10 seconds.
Does the test light operate as specified?
  1. Yes: Go To 8
  2. No: Replace the Automatic Temperature Control (ATC) in accordance with the Service Information.

    Perform BODY VERIFICATION TEST VER-1 .

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8 Turn the ignition off.
Remove the rear booster fan blower housing.
Inspect the rear booster fan blower housing for a condition causing the rear mode doors or linkage to bind.
Inspect for disconnected, missing, or broken door linkage.
Inspect for warped or broken doors.
By hand, attempt to move the rear mode doors in both directions. The doors should operate smoothly in both directions.
Are there any mechanical problems with the doors, linkage, or housing?
  1. Yes: Repair or replace the rear mode doors, linkage, or rear booster fan blower housing as necessary in accordance with the Service Information.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Replace the Rear Mode Door Actuator in accordance with the Service Information.

    Perform BODY VERIFICATION TEST VER-1 .

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