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P3625

Dynamic Skip Fire (DSF) Control Module Communication Error

2016-2019 Ford Explorer 3.5L V6

Moderate SeverityPowertrainGeneric (SAE)

Description

The Dynamic Skip Fire control module that selectively fires individual cylinders based on demand has a communication fault with the PCM.

Symptoms

Check Engine Light
DSF system disabled
Constant all-cylinder firing
Reduced fuel economy
Engine may vibrate more than usual
No smooth cylinder deactivation transitions

Common Causes

CAN bus communication fault
DSF module failure
PCM DSF driver circuit issue
Wiring harness damage
Software version mismatch

Diagnostic Steps

Check communication between DSF module and PCM
Read DSF module fault codes
Inspect CAN bus wiring to DSF module
Verify software versions match
Test DSF module power supply

Repair Notes

Repair CAN bus wiring. Replace DSF module if internal fault. Update software if version mismatch detected.

Other Powertrain Codes

P3625 on Other Vehicles

Common Questions

What does code P3625 mean on a 2016-2019 Ford Explorer?

P3625 stands for "Dynamic Skip Fire (DSF) Control Module Communication Error". The Dynamic Skip Fire control module that selectively fires individual cylinders based on demand has a communication fault with the PCM.

What are the symptoms of P3625 on a Ford Explorer?

Common symptoms of P3625 include: Check Engine Light, DSF system disabled, Constant all-cylinder firing, Reduced fuel economy, Engine may vibrate more than usual, No smooth cylinder deactivation transitions.

What causes P3625 on a 2016-2019 Ford Explorer?

Common causes of P3625 include: CAN bus communication fault, DSF module failure, PCM DSF driver circuit issue, Wiring harness damage, Software version mismatch.

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