Avalanche 4WD V8-5.3L (2011)
specified range. Use a heat gun or a blower to warm or cool the TED while measuring the resistance. The resistance values should slowly lower
toward the specified range.
3. Test for 0.9 - 10 Ohms between the heat control circuit terminal 1 and the cool control circuit terminal 3.
‹› If not within the specified range, replace the ventilation heating and cooling module.
Note: The test leads must be connected in the correct polarity, otherwise higher out of range values will appear. Use the Positive Lead for the
control circuit and the Negative Lead for the ground circuit.
4. Test for 6 k - 9 kOhms between blower control circuit terminal 2 and the low reference circuit terminal 4.
‹› If not within the specified range, replace the ventilation heating and cooling module.
Note: The test leads need to be connected in the correct polarity, otherwise higher out of range values will appear. Use the Positive Lead for the
speed control circuit and the Negative Lead for the ground circuit.
5. Test for 290 k - 420 kOhms between blower speed control circuit terminal 7 and the low reference circuit terminal 4.
‹› If not within the specified range, replace the ventilation heating and cooling module.
Repair Instructions
Perform the Diagnostic Repair Verification See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Tests and Associated Procedures/Verification Tests and Procedures after completing the diagnostic procedure.
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Driver or Passenger Seat Back Ventilation Heating and Cooling Blower Replacement See: Service and Repair/Driver or Passenger Seat Back
Ventilation Heating and Cooling Blower Replacement
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Driver or Passenger Seat Cushion Ventilation Heating and Cooling Blower Replacement See: Service and Repair/Driver or Passenger Seat
Cushion Ventilation Heating and Cooling Blower Replacement
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Control Module References See: Testing and Inspection/Programming and Relearningfor the MSM and CCSM replacement, setup, and
programming
