B12BE - Heated Backlight/Mirror Relay Drive Circuit Shorted To Battery Voltage

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Comments  |  Add Comment

B12BE Possible Causes

  • Faulty Rear Window Defrost Relay
  • Rear Window Defrost Relay harness is open or shorted
  • Rear Window Defrost Relay circuit poor electrical connection
  • Faulty Rear Window Defrost Switch
  • Faulty Rear Window Defrost Grid
  • Faulty Heating Ventilation Air Conditioning (HVAC) Module

How do I fix code B12BE

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.

Cost of diagnosing the B12BE code

Labor: 1.0

The cost of diagnosing the B12BE 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)

B12be Description

The Rear Window Defrost Relay receives power from the Battery Junction Box (BJB). When the rear window defrost switch is pressed to the ON position, the Heating Ventilation Air Conditioning (HVAC) Module activates the rear window defrost relay by grounding the circuit. When activated, the rear window defrost relay supplies 12 volts to the rear window defrost grid on the circuit. The rear window defrost grid is grounded through the circuit.
OBDII Code B12be - Heated Backlight/Mirror Relay Drive Circuit Shorted To Battery Voltage - AutoCodes.com

B12BE More Information

Need more information on how to fix the B12BE code?
Get Access to Factory Service Manuals

Information for specific makes

  • B12BE FORD Heated Backlight/Mirror Relay Drive Circuit Shorted To Battery Voltage
  • B12BE LINCOLN Heated Backlight/Mirror Relay Drive Circuit Shorted To Battery Voltage
  • B12BE MERCURY Heated Backlight/Mirror Relay Drive Circuit Shorted To Battery Voltage

Need more help?

Get the B12be code diagnosed by a professional: Find a repair shop in your area

Comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the B12be code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧