Rear HVAC Temperature Control Input Circuit Short
Table of contents
B11EB MERCURY Possible Causes
- Faulty Rear HVAC Temperature Control
- Rear HVAC Temperature Control harness is open or shorted
- Rear HVAC Temperature Control circuit poor electrical connection
- Faulty Heating, Ventilation, and Air-Conditioning (HVAC) Module
How do I fix code B11EB MERCURY?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- B11EB:11 Rear HVAC Temperature Control Input Circuit Short to Ground
- B11EB:15 Rear HVAC Temperature Control Input Circuit Short to Battery or Open
Cost of diagnosing the B11EB MERCURY code
The cost of diagnosing the B11EB MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B11EB MERCURY Description
Under normal operation, the rear auxiliary control is supplied a 5-volt reference and ground from the Heating, Ventilation, and Air-Conditioning (HVAC) Module. When the auxiliary blower motor speed, airflow mode or temperature control is adjusted, the HVAC module reads the voltage from the rear auxiliary climate controls on the auxiliary blower motor speed, airflow mode, and temperature control feedback circuits to determine the requested setting. The OBDII code sets when the HVAC module senses an open, or short to ground or voltage on the rear auxiliary climate controls blower speed input circuit.