Pinpoint Test I : U1007:31: Notes

Diagnostic Overview 

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for more information.

Refer to Power Distribution/BCM 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.

Visual Inspection and Diagnostic Pre-checks 

Before diagnosing or repairing the charging system inspect the following items:

• Battery current sensor
• Inspect the wiring, terminals or connectors

DTC Fault Trigger Conditions 

DTC	Description	Fault Trigger Conditions
U1007:31	Lost Communication With Battery Monitoring Sensor "A": No Signal	The BCM does not indicate current from the battery current sensor.

This pinpoint test is intended to diagnose the following: 

• Wiring, terminals or connectors
• Battery current sensor
• BCM