Component Description
Ignition Switch - Push Button Start
The ignition switch - push button start (Engine Start/Stop button) is a momentary contact switch that is hardwired to the BCM and the PCM. The ignition switch - push button start is used to obtain the OFF, ON or START ignition modes. The ignition switch - push button start is part of the FCIM and cannot be serviced separately. For more information, Refer to: Steering Wheel and Column Electrical Components - System Operation and Component Description .
BCM
Refer to: Module Controlled Functions - System Operation and Component Description .
PCM
The PCM provides power and ground to the starter relay to initiate cranking of the engine.
DIAGNOSIS AND TESTING > STARTING SYSTEM > INSPECTION AND VERIFICATION
Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
1. Verify the customer concern.
2. Check the battery for loose, damaged or corroded connections.
3. Check the generator for loose, damaged or corroded connections.
4. Check the battery condition and state of charge. BATTERY .
5. Remove the accessory drive belt. REFER to: ACCESSORY DRIVE BELT - 2.3L EcoBoost (231kW/314PS). Verify the crankshaft and each of the components driven by the accessory drive belt rotate and are not seized or damaged.
6. If any aftermarket accessories have been added to the vehicle, make sure they are properly wired.
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.