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P3806

48V Mild Hybrid Torque Assist Not Available

2016-2019 Ford Explorer 3.5L V6

Moderate SeverityPowertrainGeneric (SAE)

Description

The 48V BSG system is unable to provide electric torque assist during acceleration events. The vehicle operates without hybrid boost.

Symptoms

No electric assist during acceleration
Slightly reduced off-the-line performance
Increased fuel consumption
Turbo lag more noticeable (if turbocharged)
48V system indicator may illuminate

Common Causes

48V battery SOC too low for assist
BSG torque output limited by temperature
48V system in degraded mode
Drive belt condition preventing torque transfer
Control software limiting assist

Diagnostic Steps

Check 48V battery SOC level
Monitor BSG temperature
Read 48V system inhibit reasons
Inspect drive belt condition
Review recent 48V system fault codes

Repair Notes

Resolve underlying 48V system issue. Charge 48V battery. Replace drive belt if worn. Address thermal issues.

Other Powertrain Codes

P3806 on Other Vehicles

Common Questions

What does code P3806 mean on a 2016-2019 Ford Explorer?

P3806 stands for "48V Mild Hybrid Torque Assist Not Available". The 48V BSG system is unable to provide electric torque assist during acceleration events. The vehicle operates without hybrid boost.

What are the symptoms of P3806 on a Ford Explorer?

Common symptoms of P3806 include: No electric assist during acceleration, Slightly reduced off-the-line performance, Increased fuel consumption, Turbo lag more noticeable (if turbocharged), 48V system indicator may illuminate.

What causes P3806 on a 2016-2019 Ford Explorer?

Common causes of P3806 include: 48V battery SOC too low for assist, BSG torque output limited by temperature, 48V system in degraded mode, Drive belt condition preventing torque transfer, Control software limiting assist.

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