Measure:
Positive Lead | Measurement / Action | Negative Lead |
C1551B-47 | Ground |
Is any voltage present?
Yes | GO to D3 |
|---|
No | Install a new ignition switch - push button start. REFER to: Front Controls Interface Module (FCIM) - Vehicles With: AM/FM/CD/SYNC (without touchscreen) or REFER to: Front Controls Interface Module (FCIM) - Vehicles With: Touchscreen Display. |
|---|
D3 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE BCM (BODY CONTROL MODULE) DISCONNECTED
Ignition OFF.
Disconnect BCM C2280B .
Ignition ON.
Measure:
Positive Lead | Measurement / Action | Negative Lead |
C1551B-47 | Ground |
Is any voltage present?
Yes | REPAIR the circuit. |
|---|
No
D4 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
Ignition OFF.
Disconnect and inspect all PCM connectors.
Repair:
corrosion (install new connectors or terminals - clean module pins)
damaged or bent pins - install new terminals/pins
Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.