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Front Mode Door Not Responding

NOTE: After making any repairs, perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  1. Turn ignition switch to OFF position. Disconnect front mode door actuator harness connector. Disconnect ATC module C1 connector. Check for short to ground in front mode door driver "A" circuit. Using DVOM, measure resistance between ground and ATC module C1 connector terminal No. 8 (Light Blue/Orange wire). See Figure. If reading is less than 100 k/ohms, repair short to ground in Light Blue/Orange wire. Calibrate ATC module and actuators. See HVAC CONTROL CALIBRATION  under PROGRAMMING. If reading is 100 k/ohms or more, go to next step.
  2. Check for short to ground in front mode door driver "B" circuit. Using DVOM, measure resistance between ground and ATC module C1 connector terminal No. 7 (Dark Blue/Gray wire). See Figure. If reading is less than 100 k/ohms, repair short to ground in Dark Blue/Gray wire. Calibrate ATC module and actuators. See HVAC CONTROL CALIBRATION  under PROGRAMMING. If reading is 100 k/ohms or more, go to next step.
  3. Check for short between front mode door driver "A" and "B" circuits. Using DVOM, measure resistance between ATC module C1 connector terminals No. 7 (Dark Blue/Gray wire) and No. 8 (Light Blue/Orange wire). See Figure. If reading is less than 100 k/ohms, repair short between Dark Blue/Gray wire and Light Blue/Orange wire. Calibrate ATC module and actuators. See HVAC CONTROL CALIBRATION  under PROGRAMMING. If reading is 100 k/ohms or more, go to next step.
  4. Measure resistance in Light Blue/Orange wire between front mode door actuator harness connector and ATC module C1 connector terminal No. 8. See Figure. If reading is less than 5 ohms, go to next step. If readings is 5 ohms or more, repair open in Light Blue/Orange wire. Calibrate ATC module and actuators. See HVAC CONTROL CALIBRATION  under PROGRAMMING.
  5. Measure resistance in Dark Blue/Gray wire between front mode door actuator harness connector and ATC module C1 connector terminal No. 7. See Figure. If reading is less than 5 ohms, go to next step. If readings is 5 ohms or more, repair open in Dark Blue/Gray wire. Calibrate ATC module and actuators. See HVAC CONTROL CALIBRATION  under PROGRAMMING.
  6. Connect front mode door actuator harness connector. Using DVOM, measure resistance between ATC module C1 connector terminals No. 7 (Dark Blue/Gray wire) and No. 8 (Light Blue/Orange wire). See Figure. If reading is 26-46 ohms, replace faulty ATC module. Calibrate ATC module and actuators. See HVAC CONTROL CALIBRATION  under PROGRAMMING. If reading is not 26-46 ohms, go to next step.
  7. Replace faulty front mode door actuator. Calibrate ATC module and actuators. See HVAC CONTROL CALIBRATION  under PROGRAMMING.
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