Failure mode - Ford 3.2L Power Stroke Diesel (Transit 2015-2019)

Sensors / MIL / electrical gremlins (launch-era SSM cluster)

Reliability tier: aggregated - verify before ordering, see /disclosure/

Symptoms

MIL with assorted diesel DTCs (launch years)
sensor-circuit codes (cam/crank/rail)
battery/charging complaints on the dual-battery system

Root cause

The 2015 launch year carried a large informational SSM cluster (45023, 45266, 46066, 46706, 46824 and more) covering sensor/DTC behavior; most resolved with calibrations and sensor updates rather than hardware.

Diagnosis

read DTCs against the launch-era SSM set before parts
verify calibration level (the 2015-2016 vans took multiple updates)
battery/charging baseline on every electrical complaint

Fixes

calibration updates and sensor replacement per the SSM directions ()

senders - more than one option: 3.2L Power Stroke Fuel Temperature Sensor (BK2Z-9F951-A), 3.2L Power Stroke Oil Pressure Sensor (3S7Z-9278-B, current)
3.2L Power Stroke Glow Plug Control Unit (CK4Z-12B533-B)

Prevalence

common