Engine-Codes - Generic - B11EB

B11EB - Rear HVAC Temperature Control Input Circuit Short

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B11EB 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 is the B11EB code repair?

Start by checking 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

What is the cost to diagnose the B11EB code

Labor: 1.0

The cost to diagnose the B11EB 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.
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Possible Symptoms

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

B11EB 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 blower speed input circuit.

More Information

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Information for specific makes

  • B11EB FORD Rear HVAC Temperature Control Input Circuit Short
  • B11EB LINCOLN Rear HVAC Temperature Control Input Circuit Short
  • B11EB MERCURY Rear HVAC Temperature Control Input Circuit Short

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