Normal Operation
WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- DTC B1317 (Battery Voltage High) - this DTC sets in continuous memory or on-demand in the Trailer Brake Control (TBC) module when the TBC module detects that battery voltage has risen above 16 volts on the voltage supply circuit while not braking.
This pinpoint test is intended to diagnose the following:
- Charging system concern
- TBC module