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B1081 Mercury Code - Temperature Damper Motor Circuit

- Code Popularity: 933 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1081 Mercury?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Temperature Damper Motor
  • Temperature Damper Motor harness is open or shorted
  • Temperature Damper Motor circuit poor electrical connection
  • Faulty Heating, Ventilation, and Air Conditioning (HVAC) Module
⚠ Does your Mercury have Safety Recalls? → Check here

How to Fix the DTC B1081 Mercury?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

B1081:11 - Left Temperature Damper Motor: Circuit Short to Ground
B1081:12 - Left Temperature Damper Motor: Circuit Short to Battery
B1081:13 - Left Temperature Damper Motor: Circuit Open

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1081 Mercury code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B1081 Mercury Description

o rotate the temperature blend door actuator, the Heating, Ventilation, and Air Conditioning (HVAC) module supplies voltage and ground to the temperature blend door actuator through the door actuator motor circuits. To reverse the temperature blend door actuator rotation, the HVAC module reverses the voltage and ground circuits.
The temperature blend door actuator feedback resistors are supplied a ground from the HVAC module by the temperature blend door actuator return circuits and a 5-volt reference voltage on the temperature blend door actuator reference circuits. The HVAC module reads the voltage on the temperature blend door actuator feedback circuits to determine the temperature blend door actuator position by the position of the actuator feedback resistor wiper arm.
During an actuator calibration cycle, the HVAC module drives the temperature blend door until the door reaches both internal stops in the HVAC case. If the temperature blend door is temporarily obstructed or binding during a calibration cycle, the HVAC module may interpret this as the actual end of travel for the door. When this condition occurs and the HVAC module commands the actuator to its end of travel, the airflow may not be the expected temperature.

OBDII Code B1081 Mercury - Temperature Damper Motor Circuit - AutoCodes.com
B1081 Mercury Code - Temperature Damper Motor Circuit

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