OBD Guide

P0966

Pressure Control Solenoid B Control Circuit Low

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Incorrect gear shifting
  • Delays when shifting gears
  • Hard gear shifts
  • Increased fuel consumption
  • Check engine light comes on

Causes

  • Pressure control solenoid B malfunction
  • Open or short circuit in control circuit
  • Poor connection or corroded connectors
  • Transmission ECU malfunction
  • Problems with power or grounding of the circuit

How to Fix

  1. Check the integrity of the solenoid control circuit
  2. Check connections and connectors for corrosion or damage
  3. Check solenoid resistance (compare with specifications)
  4. Replace pressure control solenoid B if necessary
  5. Check and, if necessary, replace the transmission ECU

Related codes

Error P0966 by Vehicle Brand