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Symptom List: OVERHEATING SENSOR OPEN Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be OVERHEATING SENSOR OPEN. When Monitored and Set Condition: OVERHEATING SENSOR OPEN When Monitored: During heater activation and operation. Set Condition: This DTC will set if the Overheating Sensor’s resistance is not within the expected parameters. OVERHEATING SENSOR SHORTED When Monitored: During heater activation and operation. Set Condition: This DTC will set if the Overheating Sensor’s resistance is not within the expected parameters. POSSIBLE CAUSES OVERHEATING SENSOR TEST ACTION APPLICABILITY 1 WARNING: NEVER OPERATE THE HEATER IN AN ENCLOSED AREA All Repair Replace the Cabin Heater Assembly or Heater Booster Assembly 97 CABIN HEATER |