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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 (Body Diagnostic Procedures) >> Diagnostic Information And Procedure >> Heating & A/C >> Symptom List: Blend Calibration Fault; Mode Calibration Fault; RECIRCULATION Calibration Fault >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
BLEND CALIBRATION FAULT - DIAGNOSTIC PROCEDURE

TEST ACTION
1
NOTE: All Actuator Circuit Test fault messages and Overcurrent DTCs must be repaired before diagnosing Calibration fault messages.
Turn the ignition on.With the DRBIII(R) in HVAC, System Tests, actuate the Actuator Circuit Test.Does the DRBIII(R) display any Actuator Circuit Test fault messages?
  1. Yes --> Return to the symptom list and choose the symptom(s).

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Go To 2
2
NOTE: All Actuator Circuit Test fault messages and Overcurrent DTCs must be repaired before diagnosing Calibration fault messages.
Turn the ignition on.With the DRBIII(R), read active HVAC DTCs.Does the DRBIII(R) display any active HVAC DTCs?
  1. Yes --> Return to the symptom list and choose the symptom(s).

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Go To 3
3 Which HVAC Door Recalibration fault message is present?
  1. Mode Calibration Fault
    1. Go To 4
  2. Blend Calibration Fault
    1. Go To 5
  3. Recirculation Calibration Fault
    1. Go To 6
4
NOTE: After completing HVAC Door Recalibration, the DRBIII(R) will display the current total span of each door actuator. If not noted previously, using the DRBIII(R), run the HVAC Door Recalibration, and note the current total span of each door actuator.
What is the current total Mode Door Actuator span?
  1. 0 Degrees
    1. Go To 7
  2. 1 to 5 Degrees
    1. Inspect the A/C - Heater Housing Assembly for a condition causing the linkage/door to seize. Repair as necessary in accordance with the Service Information.
    2. Perform BODY VERIFICATION TEST - VER 1  .
  3. 6 to 38 Degrees
    1. Inspect A/C - Heater Housing Assy for condition causing mode linkage/door to bind (e.g. uneven spread of lubricant; plastic flashing on linkage/cam; foreign object blocking door travel). Repair as necessary in accordance with Service Information.
    2. Perform BODY VERIFICATION TEST - VER 1  .
  4. 39 to 274 Degrees
    1. If calib fault is present, inspect A/C - Heater Housing Assy for condition causing linkage/door to bind (e.g. uneven spread of lube; plastic flashing on linkage/cam; foreign object blocking door travel). Repair as necessary in accord with Service Info.
    2. Perform BODY VERIFICATION TEST - VER 1  .
  5. 275 Degrees or More
    1. Remove door actuator from housing. By hand, attempt to rotate actuator in both directions. Also, inspect for disconnected, missing, or broken door linkage, and a warped or broken door. Repair as necessary in accordance with the Service Information.
    2. Perform BODY VERIFICATION TEST - VER 1  .
5
NOTE: After completing HVAC Door Recalibration, the DRBIII(R) will display the current total span of each door actuator. If not noted previously, using the DRBIII(R), run the HVAC Door Recalibration, and note the current total span of each door actuator.
What is the current total Blend Door Actuator span?
  1. 0 Degrees
    1. Go To 7
  2. 1 to 5 Degrees
    1. Inspect the A/C - Heater Housing Assembly for a condition causing the linkage/door to seize. Repair as necessary in accordance with the Service Information.
    2. Perform BODY VERIFICATION TEST - VER 1  .
  3. 6 to 38 Degrees
    1. Inspect A/C - Heater Housing Assy for condition causing blend linkage/door to bind (e.g. uneven spread of lubricant; plastic flashing on linkage/cam; foreign object blocking door travel). Repair as necessary in accordance with Service Information.
    2. Perform BODY VERIFICATION TEST - VER 1  .
  4. 39 to 274 Degrees
    1. If calib fault is present, inspect A/C - Heater Housing Assy for condition causing linkage/door to bind (e.g. uneven spread of lube; plastic flashing on linkage/cam; foreign object blocking door travel). Repair as necessary in accord with Service Info.
    2. Perform BODY VERIFICATION TEST - VER 1  .
  5. 275 Degrees or More
    1. Remove door actuator from housing. By hand, attempt to rotate actuator in both directions. Also, inspect for disconnected, missing, or broken door linkage, and a warped or broken door. Repair as necessary in accordance with the Service Information.
    2. Perform BODY VERIFICATION TEST - VER 1  .
6
NOTE: After completing HVAC Door Recalibration, the DRBIII(R) will display the current total span of each door actuator. If not noted previously, using the DRBIII(R), run the HVAC Door Recalibration, and note the current total span of each door actuator.
What is the current total Recirculation Door Actuator span?
  1. 0 Degrees
    1. Go To 7
  2. 1 to 5 Degrees
    1. Inspect the A/C - Heater Housing Assembly for a condition causing the linkage/door to seize. Repair as necessary in accordance with the Service Information.
    2. Perform BODY VERIFICATION TEST - VER 1  .
  3. 6 to 38 Degrees
    1. Inspect A/C - Heater Housing Assy for condition causing recirculation linkage/door to bind (e.g. uneven spread of lubricant; plastic flashing on linkage/cam; foreign object blocking door travel). Repair as necessary in accordance with Service Information.
    2. Perform BODY VERIFICATION TEST - VER 1  .
  4. 39 to 274 Degrees
    1. If calib fault is present, inspect A/C - Heater Housing Assy for condition causing linkage/door to bind (e.g. uneven spread of lube; plastic flashing on linkage/cam; foreign object blocking door travel). Repair as necessary in accord with Service Info.
    2. Perform BODY VERIFICATION TEST - VER 1  .
  5. 275 Degrees or More
    1. Remove door actuator from housing. By hand, attempt to rotate actuator in both directions. Also, inspect for disconnected, missing, or broken door linkage, and a warped or broken door. Repair as necessary in accordance with the Service Information.
    2. Perform BODY VERIFICATION TEST - VER 1  .
7 Turn the ignition off.
Disconnect the A/C - Heater Control Module C1 harness connector.
Measure the resistance between the Common Door Driver circuit and the applicable door driver circuit.
Is the resistance above 70.0 ohms?
  1. Yes --> Go To 8
  2. No --> Reconnect C1. Rerun Recalibration. If DRB displays same fault, replace A/C-Htr Cntrl in accord with Service Info. If DRB displays a different fault, ck wiring & connectors for cause of intermittent condition. If no problem is found, rerun test from Step 1.

    Perform BODY VERIFICATION TEST - VER 1  .
8 Turn the ignition off.
Disconnect the A/C - Heater Control Module C1 harness connector.
Remove the applicable door actuator from the A/C - Heater Housing Assembly.
Disconnect the door actuator harness connector.
Measure the resistance of the applicable door driver circuit between the A/C - Heater Control Module C1 harness connector and the door actuator harness connector.
Is the resistance below 5.0 ohms?
  1. Yes --> Go To 9
  2. No --> Repair the applicable door driver circuit for an open.

    Perform BODY VERIFICATION TEST - VER 1  .
9 Turn the ignition off.
Disconnect the A/C - Heater Control Module C1 harness connector.
Remove the applicable door actuator from the A/C - Heater Housing Assembly.
Disconnect the door actuator harness connector.
Measure the resistance of the Common Door Driver circuit between the applicable door actuator harness connector and the A/C - Heater Control Module C1 harness connector.
Is the resistance below 5.0 ohms?
  1. Yes --> Replace the applicable door actuator in accordance with the Service Information.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Repair the Common Door Driver circuit for an open.

    Perform BODY VERIFICATION TEST - VER 1  .
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