Other information:
DTC Chart: Roof Opening Panel
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
BCM Module DTC Chart
DTC
Description
Action
B12F4:12
Vehicle Speed Output: Circuit Short To Bat..
Check
NOTE:
No factory-equipped vehicle should have more than a 25 mA
(0.025 amp) – 50 mA (0.050) draw depending on the vehicle's accessories.
Check for current drains on the battery in excess of 25 mA (0.025 amp) –
50 mA (0.050) with all the electrical accessories off and the vehicle
at rest for at least 75 minutes (depending on region). Current drains
can be tested with the following..