Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2021TRANSIT-350 HD BASE, VAN CARGO EXTENDED, 3.5L ENG VIN 8, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 593 (ELECTRONIC ENGINE CONTROLS - 3.0L POWER STROKE DIESEL)
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Section 593 (Electronic Engine Controls - 3.0L Power Stroke Diesel)
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Section 593 (Electronic Engine Controls - 3.0L Power Stroke Diesel)
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Electronic Engine Controls - Component Location
- Electronic Engine Controls - Overview
- Electronic Engine Controls - System Operation and Component Description
- System Operation
- Computer Controlled Shutdown
- Drive Cycles
- Engine Control (EC) System
- Powertrain Control Hardware
- Powertrain Control Software
- Malfunction Indicator Lamp (MIL)
- Minimum Fuel Mass Adaption
- On Board Diagnostics (OBD) Monitors
- Power and Ground Signal Circuits
- Vehicle Reference Voltage (VREF)
- Signal Return (SIGRTN)
- Vehicle Buffered Power (VBPWR)
- Vehicle Power (VPWR)
- Controller Area Network (CAN)
- Controller Area Network 2 (CAN2)
- Engine RPM And Vehicle Speed Limiter
- Fuel Level Input
- Intermittent Fault Conditions
- Multiplexing
- Component Description
- System Operation
- Diagnosis And Testing
- Crankshaft Position System
- Electronic Engine Controls
- DTC Chart(s)
- Pinpoint Tests
- Notes
- Pinpoint Test Ab: Engine Oil Level Overfull
- Pinpoint Test AE: Unable To Activate Self Test/Network Communication Error
- Pinpoint Test C: U0103
- Pinpoint Test D: U0104
- Pinpoint Test E: U0121
- Pinpoint Test F: U0126, U0212
- Pinpoint Test G: U0131
- Pinpoint Test H: U0137
- Pinpoint Test I: U0151
- Pinpoint Test J: U0164
- Pinpoint Test K: U0199
- Pinpoint Test L: U0200
- Pinpoint Test M: U023A
- Pinpoint Test N: U0253:
- Pinpoint Test O: U0288
- Pinpoint Test P: U0298
- Pinpoint Test Q: U0404, U0405, U0554, U1022
- Pinpoint Test R: U3003
- Pinpoint Test S: P0521, P0524, P06DD, P06DE
- Pinpoint Test T: P06DA, P06DB, P06DC
- Pinpoint Test U: P06E9
- Pinpoint Test V: P1001
- Pinpoint Test W: P112A
- Engine Starting Control System
- Powertrain Control Module (PCM) Input and Output Controls
- DTC Chart(s)
- Pinpoint Tests
- Pinpoint Test AJ: Powertrain Control Module (Pcm) Power Relay
- Pinpoint Test B: Reference Voltage
- Pinpoint Test Y: Powertrain Control Module (Pcm) Read Only Memory (ROM) Failure
- Pinpoint Test D: P0602
- Pinpoint Test E: P0607
- Pinpoint Test F: P0611
- Pinpoint Test G: P0630
- Pinpoint Test H: P119F
- Pinpoint Test ZZ: Intermittent
- Variable Camshaft Timing (VCT) System
- General Procedures
- Removal And Installation
- Camshaft Position (CMP) Sensor
- Charge Air Cooler Temperature Sensor
- Crankshaft Position (CKP) Sensor
- Cylinder Head Temperature (CHT) Sensor
- Diesel Particulate Filter (DPF) Differential Pressure Sensor
- Engine Coolant Temperature (ECT) Sensor
- Engine Oil Pressure (EOP) Sensor
- Exhaust Gas Temperature Sensor
- Exhaust Pressure Sensor
- Fuel Pressure and Temperature Sensor
- Fuel Pressure Control Valve
- Fuel Rail Pressure (FRP) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Mass Air Flow (MAF) Sensor
- Nitrogen Oxides (NOx) Sensor 11
- Nitrogen Oxides (NOx) Sensor 12
- Nitrogen Oxides (NOx) Sensor 13
- Nitrogen Oxides (NOx) Sensor Module 11
- Nitrogen Oxides (NOx) Sensor Module 12
- Nitrogen Oxides (NOx) Sensor Module 13
- Particulate Matter Sensor
- Powertrain Control Module (PCM)
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.