Pinpoint Test J : Battery Current Sensor Faults: Notes
Diagnostic Overview
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for more information.
Refer to Charging System for schematic and connector information.
Normal Operation and Fault Conditions
The battery current sensor is a Hall-effect sensor attached to the battery ground cable. It is supplied a 5-volt reference and ground from the BCM. The BCM reads the battery current sensor feedback voltage to determine how much current is flowing through the battery ground cable.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B130C:12 | Load Shed Control: Circuit Short To Battery | This DTC sets in the BCM when the BCM senses a short in the battery current sensor control circuit. |
| B130C:14 | Load Shed Control: Circuit Short To Ground or Open | This DTC sets in the BCM when the BCM senses an open or ground in the battery current sensor control circuit. |
Possible Sources
- BCM
- Battery current sensor
- Wiring, terminals or connectors
Visual Inspection and Diagnostic Pre-checks
- Inspect the battery current sensor.
- Inspect the wiring, terminals or connectors.
- Inspect for loose or corroded connections.