Pinpoint Test F : No Power In On - Push Button Ignition Switch: Notes
WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Power Distribution/BCM for schematic and connector information.
Refer to Starting System for schematic and connector information.
Normal Operation and Fault Conditions
REFER to: Steering Wheel and Column Electrical Components - System Operation and Component Description .
BCM DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B108A:01 | Start Button: General Electrical Failure | Sets continuous when the BCM detects a fault from one of the ignition switch input circuits. |
| B108A:24 | Start Button: Signal Stuck High | Sets continuous when the BCM detects a fault from one of the ignition switch input circuits. |
| B1142:29 | Ignition Status 1: Signal Invalid | Sets during the on-demand self-test when the BCM detects a fault from one of the ignition switch input circuits. |
Possible Causes
- Battery voltage concern
- Fuse
- Wiring, terminals or connectors
- PATS concern
- Push button ignition switch
- BCM
Visual Inspection and Diagnostic Pre-checks
- Inspect the battery and battery cables.
- Inspect the BCM fuse 18 (5A)
- Inspect the BCM fuse 34 (30A)