B130C Possible Causes
- Faulty Trailer Battery Charge Relay
- Trailer Battery Charge Relay harness is open or shorted
- Trailer Battery Charge Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B130C?
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.
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Tech Notes
B130C:12 Load Shed Control Circuit Short To BatteryB130C:14 Load Shed Control Circuit Short To Ground or Open
Cost of diagnosing the B130C code
Labor: 1.0
The cost of diagnosing the B130C 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)
B130C Description
The trailer battery charge relay coil receives voltage from the Battery Junction Box (BJB) fuse when the ignition is in RUN. The BJB fuse supplies voltage to the Trailer Battery Charge Relay switch side at all times. The Body Control Module (BCM) controls the ground side for the battery charge relay coil.The BCM provides ground for the trailer battery charge relay when the ignition is in RUN and the BCM determines that the battery voltage is not low. When the trailer battery charge relay is energized, the voltage is routed to the trailer tow connector.

More Information
Need more information on how to fix the B130C code?Get Access to Factory Service Manuals
Information for specific makes
- B130C FORD Load Shed Control Circuit Short
- B130C LINCOLN Load Shed Control Circuit Short
- B130C MERCURY Load Shed Control Circuit Short
Comments
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