B11EC - Rear HVAC Blower Control Input Circuit Short

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B11EC Possible Causes

  • Faulty Rear HVAC Blower Control
  • Rear HVAC Blower Control harness is open or shorted
  • Rear HVAC Blower Control circuit poor electrical connection
  • Faulty Heating, Ventilation, and Air-Conditioning (HVAC) Module

How do I fix code B11EC

    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.

B11EC Tech Notes

B11EC:11 Rear HVAC Blower Control Input Circuit Short to Ground
B11EC:15 Rear HVAC Blower Control Input Circuit Short to Battery or Open

Cost of diagnosing the B11EC code

    Labor: 1.0

    The cost of diagnosing the B11EC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B11EC Possible Symptoms

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

B11EC Meaning

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 airflow mode input circuit.
OBDII Code B11EC - Rear HVAC Blower Control Input Circuit Short - Engine-Codes.com

B11EC More Information

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