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P0966high severityPowertrain

Pressure Control Solenoid "B" Control Circuit Low

on 2007 Ford Explorer 4.0L V6 SOHC · AWD

What this code means

The control circuit for pressure control solenoid B reads lower voltage than expected. This typically indicates a short to ground or internal solenoid failure.

Symptoms

  • Harsh shifting
  • Transmission slipping
  • Check engine light on

Common causes

  • Short to ground in wiring
  • Faulty pressure control solenoid B
  • Damaged connector
  • Faulty TCM/PCM

Diagnostic steps

  1. Scan and record freeze frame data
  2. Inspect wiring for shorts to ground
  3. Measure solenoid resistance
  4. Repair wiring or replace solenoid

Other Powertrain codes on this vehicle

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